2003 duramax transmission problems

On some models, it can also be found under the hood near the battery or under the interior center console. harold dean 2002 2500 hd c/c duromax/allison short bed 2003 34 rlbs cedar creek just me and momma puli-one • The Fleece FPE-TL-LB7-LLY Allison Transmission Cooler Lines fix the old leaky transmission lines in your 01-05 GM 6. 6 lb7 lly duramax allison lct1000 no shift misfire low power, dash warning lights coming on, transmission in 3rd gear all the time and check engine check transmission lights on intermittently. EGTs are notto high and with 90 over at the FLY wheel it is pretty safe. Anyway, I no very little of the duramax, are there any problems I should be looking for? I have not asked yet, but do the 2003's have the allison transmission? Any help would be great, thanks for your I have a 2003 Chevy Silverado with a factory installed tow package, it has 30,000 miles. 6 its got 110,000 miles and my service engine light came up it braught up some codes first one is p0700 showing transmission control system malfunction, second is p0735 showing gear 5 ratio incorrect it has done it 2 times and both times i was on the highway going about 65 mph and i went to pass someone and it felt like it downshifted and my rpm went 2006-2007 GM 6. Once the problem injector(s description: duramax diesel fuel in oil diagnostics. 00: MTFRD059: Transmission Ford 6 Speed 4WD Diesel includes SuperDuty 1999-2003 $ 3,000. 6L Duramax Transmission Cooler is now available! GM Duramax Here, the culprit is often the neutral safety backup switch. my tranny is smoth as silk. 2018/11/24 Not specific to one version of Duramax in particular (ex: LB7, LLY, LBZ, LMM or LML), the problem exists across all generations. The Allison transmission is widely known as the most indestructible tranny ever put in a pickup truck. After five years, most of the issues with these trucks had been  How to replace Duramax fuel injectors and how much a remanufactured or new LB7 injector costs. The 6. With the ATS shift kit (A and B trim valves and converter flow valve) and pump upgrade kit (pressure regulator valve and pressure regulator spring) we bump the pressure in the It seems that the GM 3. If the design with cam chain drive at the rear will last 300,000 miles or more then it is less of an issue. 6L LLY Duramax Transmissions Transmission Parts Injectors Fuel Pumps Turbos Engines Gear & Axle Suspension From 1999-2003 the Ford 7. 33: MTFRD058: Transmission Ford 6 Speed 2WD Diesel 1999-2003 $ 3,000. Intermittent harsh shifting – Chevrolet Silverado 2500 HD 4L60E Problem – A common Chevy Silverado transmission problem is an intermittent hard 1-2 shift, often accompanied by engine bogging. 8L I6 in heavier C and T GM trucks that will more or less outlast the frame. Tow/haul probably would have keep the tranny in second gear to keep the revs a little higher. 2003 transmission problems???? Nov 09, 2008 · 2003 chevy 2500hd duramax/ allison transmission has 94,300 miles on it. White smoke from an LB7 Duramax engine often indicates faulty injectors. Most of the time it is a stuck Torque Converter Clutch (TCC) solenoid, but this is not the only cause of this problem. 5L V8 GM diesel in a 3500 extended savanan (with insulated box and reefer on roof) that just turned 1million kms, or 600K miles before I traded it in. Comment. 03 LB7 CC/SB 185k 6in fab tech 35. 2010/05/21 I left the engine run so I could check the trans after it warmed up. sit bulletin 1401353. My problem is with the trans going 60 or 65 the trans just slips or disenages and the engine races. The design and labor costs dictate a complete set replacement in most cases. In fact, when the seals problems were first The brown wire on pin 60 of the TCM was intermittently shorting to ground. 2001-2004 GM 6. Upgrade your transmission or get transmission related products from ATS Diesel, Suncoast, or BD Diesel Performance. The 4L80E transmission is the advanced progeny of the legendary TurboHydramatic TH400 automatic transmission, and is based heavily on the 400 in both parts and strength, yet featuring an added overdrive gear, a lock-up torque converter and advanced electronic controls. I purchased a Chevy Silverado 2018 LTZ and now my my transmission is bad after 120k . But that AZ obd11 code read out does not do much as far a testing or checking out your problem. Allison 1000 5 Speed 6 Speed Conversion for the 2003-05 GM Duramax diesels. Your truck may have a Z71 sticker on the side of the bed indicating an off-road package; that is an example of an RPO code. I have a 2002 Chevy crew cab 2500 HD Duramax/Allison. Many times this code indicates that the transmission may need to be replaced, rebuilt or overhauled which can vary between $2500 and $5000. want to learn how to fix nhtsa #10005511? 5 common transmission problems. 2003 Chevrolet Silverado 3500 transmission problems with 45 complaints from Silverado 3500 owners. service vme. level 3 on the hot and hot+2 is 160fwhp so it is about max you would want to run it with smart city driving. Aluminum heads are now used in several other engines because they are lighter and just as durable. Fail Record and Freeze Frame. Normal operating temps for an Allison is 180F-220F. 6L Duramax engine, which, at the time, was considered by many to be the most advanced diesel powerplant ever  2019/02/27 May include one or all and not limited to; Low power, poor shifting quality, excessive smoke, engine limp mode, reduced mpg. That doesn’t mean the LB7 Duramax isn’t a great truck though. • Place the transmission into OD range (The PRNDL won’t operate with the connector disconnected). 40,000 Diesel trucks upgraded with over a 95% success. Commonly these units can throw gear ratio codes , or. 5 17 stts. #14. That year also brought the Allison 1000, arguably the first automatic transmission in its class worthy of being mated to a powerful diesel. Going into reverse with a "SLAM" now and i am pretty sure it is stuck in 3rd gear. 6L LLY/LBZ Duramax. But the truck starts and runs fine. The 2003 Chevy Silverado was the 5’th year of the GMT800 platform truck. We go over the modifications that we recommend when building these trucks. lly duramax leaking transmission fluid. 73 gears. 03 Duramax Allison Transmission. 6 liter V6 is notorious for cam chain problems. 9 L. Although, you can easily check if the module is the source of trouble if there is a manual override. I have what looks like a small leak but level is  Now, these trucks are getting older, and it's very likely that your 2003 Chevy Silverado may be having transmission problems. Fixing The 68RFE Transmission With BD Diesel Performance. We think of diesel engines as some of the most robust and reliable machines in existence, and for good reason; they power everything from Like all Duramax-powered GMs, automatic transmission versions will need to be upgraded early on in the modification process if goals for big power are on the table. Was going to put new injectors and head studs, selling truck now. 6 Diesel Common Issues and Problems. This code is far too generic to be of use in a repair situation, however armed with this code we can make some general inspections to see if some maintenance can repair the problem for considerably less money. Heres some info on the early 4L80E transmission problems. In general, it’s a very durable and reliable engine. 285 & 305 HP. I was in some mud spinning my tires, the trans appeared to be getting warm, then it made a huge bang, (i think the bang was the truck coming out of 4 wheel drive though) I let the truck cool down, then when i put it in gear it will not do anything but rev up. The power gain with higher fuel mileage is a dream come true. $16. exhibit erratic shift problems related to the signal coming from these sensors. 6. Downtime costs you money, so buying a used 4L80E transmission or used 6L90 transmission might make sense. It will go from reverse all through the gears into 1st I checked the linkage under the dash everything is connected. various models including 2003 and 2004 gmc c4500 and 5500 trucks. The first is known as the input shaft speed (ISS) sensor. I was the former Transmission Fluids Engineer at Allison Transmission from 1990-2009 when I retired. 6-liter LB7 Duramax Engine is produced by DMAX, a joint venture between GM and Isuzu in Moraine, Ohio. Duramax Injector Failures-Cause and Prevention LB7: Many LB7 owners have had injector issues. Ok take a problem like this transmission shudder. Allison Transmission Problems David E. 60 PLUS OTHER PARTS NEED FOR REPAIRS AND LABOR ALSO NEEDED TO BE ADDED TO CHARGES. Aug 9, 2009. This 6. GM has issued 13 technical service bulletins related to shifting issues alone, but “none of the suggested repairs have remedied the problem,” the lawsuit says. P0103 Mass or Volume Air Flow Circuit High Input. 2003 Chevrolet Silverado 2500 transmission problems with 50 complaints from Silverado 2500 owners. Failure Date: 08/23/2007. You might notice that, while driving, your car hesitates or refuses to go into gear. This contains all three sensors for the transmission. (engine code Y) Introduced in the 2017 model year it is the most powerful diesel pickup truck engine GM has produced with 445 hp (332 kW) at 2,800 rpm and 910 lb⋅ft (1,234 N⋅m) at 1,600 rpm. Do you think it is the (NEAUTRAL,SAFETY,BACKUP,SWITCH). Injector failure was a common problem on the LB7 engines. MICHIGAN. Different problems can have similar symptoms, so it is important to undertake regular transmission maintenance. While it is easy enough to replace  2015/09/07 For 2001, GM released its 6. 1. Reasons for overheating include low fluid levels, leaks, burned, old or dirty fluid, or problems with the solenoid. A hard to shift transmission problem is usually due to the car transmission declining to move gears. Later models got the 6L90 6-speed transmission, and the GMC Sierra 2500HD 6. 00: MTFRD076: Transmission Ford 6 Speed 4WD 6. 5-05 6. These are the best budget friendly modifications for any Duramax truck. CONVERT YOUR 2003-2005 ALLISON 5 SPEED TO 6 SPEEDS Drops 325 engine rpm @ 75 mph with 3. While it retained the LLY designation, mechanically it is identical to the LBZ and is mated to the new 6-speed Allison transmission. The 2001 Duramax engine rated at 300 HP and 520 foot-pounds of torque. the module was removed and sent to allisson who returned a new module (warranty work). The ZF S6-650 was optional in 1999 to 2003 Ford pickups  Are you experiencing problems with your gear shifting? Does it feel stiffer than normally? On top of all these, if your check engine lights  2017/04/20 One of the most common problems are fluid leaks. I am so Description: Used 2003 Chevrolet Silverado 2500HD 4 Dr LS 4WD Extended Cab LB HD for sale - $11,881 - 199,985 mi with Chrome Wheels, Skid Plate Package. Common Problems with the 6. At least that is on the front of the engine and you don't need to drop the transmission. MT-2500. 2500HD transfer case. But having to drop a transmission to access a camshaft chain, question that 05 LLY 6. REBUILD KITS ALLISON® REBUILD KITS. Service has looked into the problems several times and claim there is no recall or bullitins to indicate a problem. Your transmission is necessary in order for your car to operate correctly, and if you start to hear it make a clunking noise, you have good reason to become concerned. It happens most often on 2005-and-earlier engines; that year, GM started installing larger radiators, which seems to have solved the problem. Mine usually runs about 200F when towing my rig on cruise control @70-75 mph on T/H mode. Description: 2003-2005 Allison 5-Speed The brown wire on pin 60 of the TCM was intermittently shorting to ground. The 4L80E is being found in more and more high performance, race, and tow vehicles over the last few years. 6L Duramax Diesel · Fuel Starvation and/or Air in the Fuel Lines · Water Pump Failure · Overheating · Injector Failure · Injector Harness  2015/05/04 Allison Transmission - The Allison transmission behind the LB7 Duramax to be honest is nothing to brag about in stock form. 6L Duramax diesel engine, a three stage NOS launcher nitrous system, and a Garret turbo, only on dieselpowermag. ALLISON 1000 GM/DURAMAX. While some Top Issues With Power Stroke, Duramax, and Cummins Engines. Luckily, problems with this part are easy to spot. I started looking at the top (turbo) down and it doesn't appear to be coming top down. 6, 8. The Novak Guide to the GM 4L80E Automatic Transmission Introduction. i have a 2002 duramax/ allison with 24000miles and have had no problems at all. I am looking into a 2003 ext cab short box 4x4 wit the Duramx. The harness had rubbed on the motor mount until a tiny hole chaffed right through the harness plastic Motor wise problems are Lb7 01-04 injector issues, fixes better fuel filtration (lift pump, cat filter) LLY 04. The 4L80E, an electronic, overdrive-equipped version of the venerable TH-400, is tough enough While it’s true that you’ll kill the Allison automatic long before you hurt the Duramax in front of it, we’re assuming all supporting mods have been performed (most notably, a built transmission and lift pump) for the purposes of illustrating what the 6. 73 gears that normally likes cruising at 62 MPH will now cruise nice at 72 MPH. This condition can be caused by the torque convertor clutch applying during the shift. View all 86 consumer vehicle reviews for the Used 2003 Chevrolet Silverado 2500HD on Edmunds, or submit your own review of the 2003 Silverado 2500HD. Transmission GM 6 Speed 2WD 6. Dozens of complaints have been submitted by drivers to the National Highway Traffic Safety Administration over these transmission problems. it has SPECIALTY TOOLS & EQUIPMENT. With some aftermarket solutions, you can fix most of the 6. Remanufactured Duramax LB7 Engines. TCM'S, ECU'S, & SELECTORS ALLISON® TCM'S, ECU'S, & SELECTORS. I then bought a Silverado new in 2010 and drove it for 275 k miles with no transmission problems . With your foot on the brake, put the transmission in Drive, and apply light throttle. Found defect while backing it out of driveway; the back cover of the transmission was cracked and fluid coming out. This mode is triggered by anything that could cause severe damage to the transmission, including severe overheating or towing a very heavy load. 6L LB7 Duramax. Shifts at 2000-2500 and you will see about a 500 RPM drop. Posted By: AAARLMKB on 03/23/07 03:49pm i had a problem with a transmission control module sending false readings to the EMC. P0104 Mass or Volume Air Flow Circuit Intermittent. Designed for stock to medium size turbos and big HP tunes. Will not shift. The harness had rubbed on the motor mount until a tiny hole chaffed right through the harness plastic Allison Transmission Problems David E. Power output has increased incrementally to the current 365 HP and 660 foot-pounds of torque in the LMM Duramax. GM has been and is still trying to resolve GM 15794381 Transmission Dipstick $ 49. The truck has 160k on it and is well maintained and clean. There was a problem prior to Allison redesigning the seals. A common problem on many General Motors cars is the Torque Converter Clutch fails to release and causes the car to stall when it comes to a stop. Call Thoroughbred Diesel toll free at 1-866-737-4966 for free transmission advice or to order. PERFORMANCE PARTS ALLISON® PERFORMANCE PARTS. GM 15794381 Transmission Dipstick $ 49. Automatic Transmission problem 1. (Photo Source: istockphoto) These are all transmission control module symptoms, indicating a problem with the component. But they aren’t without their problems though, so let’s look at some of the most common GMC Sierra 2500 HD transmission problems, look at cost estimates and figure out what you can do about them. It fits the Duramax air filter, and it will fit the classic style trucks. Hi Folks, My name is Tom Johnson. Fits All the Below Automatic Models. Don`t need motor or trans01 to 03 Allison 4x4 Transmission 1800 6. Allison® Transmission Model. After five years, most of the issues with these trucks had been worked out. ) then it is just plug-n-play (once Typical problems of an Allison transmission include abnormal shifts, abnormal stall check speeds, slipping of the clutch and abnormal responses. The most recently reported issues are listed below. Anything less will almost certainly result in short term issues with the remaining units. One of the most common problems with the Allison transmission is failure of <: Fitment: 2001 2002 2003 2004 01 02 03 04 LB7 Duramax 6. AT A COST OF $666. Chevy uses better factory filtration than what Dodge attaches to the Cummins, but both should have an additional 2 micron filter installed and use quality filters. P0101 Mass or Volume Air Flow Circuit Range/Performance Problem. The least problems are with the LBZ models. Call Now 1-800-450-5333 The Allison 1000 automatic transmissions was built in 5 & 6 speed variations, the latter introduced in 2005. No loss of power, no warning lights or anything. *tt. Common Chevy Silverado 2500 HD Transmission Problems . Maximize dependability and get power to the ground in your 2001-2005 GM 6. If it wasn't pinging it isn't a problem with the Wester's tune. edu on June 12,  2006/01/12 Code that is showing is P0700 Transmission Control System (MIL Request)and P0778 Pressure Control Solenoid B. 5in custom build exhaust into 6in stack axle dump. Unfortunately, some of the truck owners find the weak link of the entire truck/drivetrain combination. 2001-2005 Allison equipped trucks had 5 forward speeds, plus lock up. 6L LB7 Duramax problems and how to fix them. The L5P duramax is the latest version of the Duramax V8 diesel engine. THE COVER IS PART NO. 6L Duramax Transmission Cooler is now available! The transmission control module is usually located at the rear of the transmission case, precisely under the cover. 2006 Duramax RPO 2006 LLY (engine code “2”) debuted in the beginning of 2006 and ended production with the start of the 2007 calendar year. Depending on the make and model of your vehicle, the cost of the replacement modulator will be around $30 to $80. 6 LB7 diesel pickup or are looking to buy one, here are some common issues and problems we have run into in our shop. Want Answer 1. ALLISON 2000. 6L LB7 Duramax - Transmission - Allison 1000 5 Speed. The GM 15794381 Transmission Dipstick is a direct replacement for the 2001-2007 GM 6. Now, these trucks are getting older, and it’s very likely that your 2003 Chevy Silverado may be having transmission problems. Models: 2001-2003 Chevrolet Silverado 2001-2003 GMC Sierra 2003 Chevrolet Kodiak 2003 GMC TopKick Equipped with 6. Allison 1000 transmissions are built with a strong structure and a are very popular transmissions amongst Chevy and GMC diesel truck owners. 5R17 Nitto Terra Grappler tires. 2008-2010 Ford 6. 6 duramax and an Allison trans. Most transmission problems are a result of overheating. If the transmission defaults to 5th gear, the C shift valve may be sticking or leaking. The cover is part no. Fluid leaks occur when the seals around the transmission or driveshaft become defective,  Jan 19, 2021 · Take immediate action when facing problems with shifting gears. This part is also commonly used on the 2007. Unfortunately, these bypass tubes commonly fail preventing Whether you drive an LB7, LLY, LBZ, LMM, or the L5P Duramax. 5-05 overheating issues( mainly just when pulling otherwise pretty good) Lbz 06-07 "arguably the best duramax" no super main problems, just get rid of the egr and pcv and you'll … I used a lower airbox from a new-style 2007 GMC Sierra gas truck. Chevy/GMC Duramax - 2001-2004 GM 6. 6 Leak from Bell Housing / Trans. If you feel shuddering, then it's the Torque converter; if not, then the problem is within the transmission. There are generally two speed sensors that work in conjunction to provide accurate transmission data to the vehicle’s powertrain control module. As with any used parts for sale there are some good, which you pay more for and some that are "Good Core". Innovation and technology set ATS apart from the rest. The ECM for the transmission is located right in the shift selector area, from what I have been able to dig up so far. it only has 14,000 miles on it. description: 6. 2011-2016 Ford 6. As the original Duramax model, the LB7 is still extremely popular with diesel enthusiasts due to its lack of emissions control parts. You can ensure the long life and efficient performance of your transmission – and your car – by doing some things to make sure it does not run too hot. The LB7 Duramax Engines is a General Motors diesel engine family for light to medium duty trucks. I had a Ford F-250 with a V-10 and the power was good but the gas mileage wasn't good at all. 5-2007. 6L LB7 Duramax diesel. 09-23-2010, 08:29 AM. Unless there is physical damage to the converter or transmission, shudder is a fairly easy problem to solve. This list has been updated to includes Chevy/GM Duramax diagnostic trouble codes. 6 its got 110,000 miles and my service engine light came up it braught up some codes first one is p0700 showing transmission control system malfunction, second is p0735 showing gear 5 ratio incorrect it has done it 2 times and both times i was on the highway going about 65 mph and i went to pass someone and it felt like it downshifted and my rpm went Finding a running 2003 - 2004 5 speed Allison transmission is not hard. 5-2010 LMM models when a left hand dipstick tube is in use due to space restrictions with compound and custom turbo setups. The 68RFE, a six-speed automatic transmission, hasn’t This could be the problem, if you have a meter and read the voltage at start up with the meter connected to the power circuit,watch the meter and see if the voltage drops and the shift pad then goes blank. Ford Powerstroke. Strange noises It seems that the GM 3. 6L LB7 Duramax Transmissions Transmission Parts Injectors Fuel Pumps Turbos Engines Gear & Axle Suspension 04. During a trip through the Rocky Mountains in October 2008, we experienced unusual problems with the shifting in our Allison 3000 MH transmission (in a 2002 Winnebago Journey 32TD). 6l engine. Yes there is a problem a small number of owners have been experiencing the issue but more than normal. The most notorious LB7 Duramax problem is their original injectors. Ensure that the engine is at low idle RPM (500-800 RPM). 2001-2010 Duramax Torque Specifications Part Standard Metric A/C Compressor Bolt 37 lb ft 50 N•m Air Cleaner Outlet Duct Clamp 71 lb in 8 N•m Air Conditioning Compressor/Power Steering Pump Bracket Bolt 34 lb ft 46 N•m Air Inlet Tube Nut 18 lb ft 25 N•m Battery Cable Bracket Bolt 106 lb in 12 N•m Battery Cable Bracket Nut 71 lb in 8 N•m In terms of LLY injector problems, GM had sorted out the internal failures with the 2004 ½ redesign, but the LLY Duramax would occasionally exhibit a trouble code for the injectors, but in most cases it turned out to be an issue with the injector harness rubbing through and causing a short or open in the wiring. I noticed a really slow drip right where the trans means the back of the engine. 2001-2005 LB7/LLY Duramax Deviant 5/8" Transmission Cooler Repair Lines (0) Reviews: Write first review Description: - 5/8" Industrial Strength Hydraulic Lines - All necessary fittings and adapters to bolt up to factory locations Vehicle Fitment. sounds like you need to contact another dealer. It developed a problem on  There is a bulletin relating to a variety of problems like this on the Allisons. Cummins didn’t receive the Bosch CP3 injection pump until two years later in 2003, with the Power Stroke coming in last to receive a high-pressure common rail injection pump. The Fleece FPE-TL-LB7-LLY Allison Transmission Cooler Lines fix the old leaky transmission lines in your 01-05 GM 6. 00For SaleNORCO, CA. Now, I'm here to help with any questions you might have about Allison transmission fluid recommendations, TranSynd, filtration, DEXRON-III, DEXRON-VI, engine oils, oil analysis, etc. Constructed with aluminum cylinder heads, the Duramax LB7 came with a standard manual transmission but could be ordered with the Allison five-speed automatic transmission. damouth. ARB air locker (front diff. Description. Read about this 2003 Chevrolet Silverado 2500 HD with a 6. P0102 Mass or Volume Air Flow Circuit Low Input. This is a clear-cut sign of a problem with your transmission. Aug 1, 2012. Transmission Cooling to the duraMAX – 2001-2010 Chevy /GMC Duramax Transmission Cooler, Part 1 – Stock Review May 23, 2017 Nicholas Thomas 12 Comments This 2001-2014 Chevy / GMC 6. 6 bought motor from salvage yard with 235k miles on it. No. Posted by Brian Gardner on Mar 11, 2019. 7-liter Cummins-equipped Rams increase, the number of owners looking to modify them do as well. Life is just one damned thing after another. Each revision of the Duramax is assigned a new 3-digit RPO code, which is GM’s internal designation for a particular option. 325 HP. Well-known member. Had transmission rebuilt 3 years ago. What are some other common 6. Beginning with the '01 Chevy and GMC 2500 HD and 3500 trucks, customers purchasing a Duramax-powered Silverado or Sierra had the option of backing it up with the legendary Allison transmission. 4L Powerstroke. The bypassing of the cooler was supposed to happen until the fluid reached operating temps. Call Now 1-800-450-5333 Keep in mind you can get a Duramax 7. However, as the first models hit the 100,000-mile mark, some issues cropped up. Could this be? Any help Engine mods bump the automatic-transmission version of the Duramax to 605 lb-ft at 1600 rpm for 2005. 6L Lml Duramax 2011-2013 6. I have kept up with all the maintanence and have had not  2020/09/01 We know that you love your Duramax engine, we get it. The worst complaints are power train:automatic transmission, power train:automatic transmission 2003 Chevrolet Silverado 2500 transmission problems with 50 complaints from Silverado 2500 owners. Re: 2003 Chevy 2500 Duramax w/ auto: Any description: 6. The DmaxStore Arctic High Flow Allison Transmission Cooler is purpose built to keep your stock or built transmission running cooler than before, with 15 more rows than the stock cooler your transmission will stay cool. Get Yours Today! We have the best products at the right price. 00: MTFRD077: Transmission Ford 6 Speed 2WD 6 2003 Duramax 6. I have a 2006 gmc 2500hd duramax slt. TCM module problem; 1) Limp Mode (Allison 1000 Model) The Allison transmission 1000 model has a feature called “limp mode”, in which the transmission locks itself into third gear. It will brake stall at 2300 RPM, but still couples at cruising speeds. Chevy Silverado 2003, Automatic Transmission Control Solenoid by ATP®. I already have had to replace the catalytic converter, the rear brakes, and now the transmission is shot (both 3rd and 4th gear are blown). These heavy-duty, high-flow, flexible transmission lines are just what you need for trouble-free performance from your Allison Transmission. would get water in them and cause all sorts of shifting problems. In 2004, GM replaced the 6. 6L LLY Duramax Transmissions Transmission Parts Injectors Fuel Pumps Turbos Engines Gear & Axle Suspension 40,000 Diesel trucks upgraded with over a 95% success. Updated NSBU switch. GIFT CARDS. com, the official website The Sun Coast GM-1058-3D Triple Disc Torque Converter is great for everyday driving in your 2001-2010 GM/Duramax. I am actually a Ford guy, but this truck is sweet. Fits 2001-2005 Chevy/GMC 2500HD/3500HD . LB7 Duramax Injectors. SOLVED: 2003 Chevy Silverado 2500 duramax won't shift into - Fixya. Equip cars, trucks & SUVs with 2003 Chevrolet Silverado 2500 HD Transmission from AutoZone. Problem with your 2003 GMC Sierra 1500? Our list of 45 known complaints reported by owners can help you fix your 2003 GMC Sierra 1500. #1. 6L Duramax Diesel had the Allison 1000 transmission. Other problems include the transmission throwing fluid out of the fill tube, excessive engine flares, intermittent noises and the retarder not functioning properly. good luck. Like any automotive part the Duramax engine and Allison transmission have some common problems. I think it is related to the pressure sensor and there is a  2018/02/10 The 2003 Chevy Silverado was the 5'th year of the GMT800 platform truck. The cause of the problem was a loose harness that crosses the front motor mount. Allison transmission. 47. Finding a running 2003 - 2004 5 speed Allison transmission is not hard. i run my hot on levle 2 for everything with no problems. As the popularity of the 6. The crankshaft  2020/07/26 The Chevy Colorado was first introduced in 2003 and that first generation reached 2000 miles the transmission began vibrating regularly. Made of premium quality OE quality at an affordable price OE fit and function. Max-Flow Arctic Allison Transmission Cooler, 2001-2005 GM 6. 6 Lb7 engine1000 Allison 4x4 trans Luckily, problems with this part are easy to spot. You get the best of both worlds more horsepower and better fuel efficiency. It could either be to change from 1 st to 2 nd gear or to change from 2 nd to 3 rd gear. Dodge Cummins, Ford Powerstroke, or GM Duramax transmission upgrades available. Once the transmission i have a 2002 duramax/ allison with 24000miles and have had no problems at all. The 1500s don't have the gauge but my understanding is that all trucks have a temp sensor and the wiring is in place. A failing speed senor on your Allison transmission can give erratic readings causing shifting concerns, dtc codes, and other issues. 6L Duramax LB7 & LLY. Letting in air from the fender well on a Duramax requires removing or cutting the seal over the holes from the factory. ALLISON 1000. The transmission speed sensors are used to calculate the actual gear ratio of the transmission while in use. One of the most common problems with the Allison transmission is failure of the Neutral Safety  2018/03/31 The torque converter converts hydraulic pressure within the transmission to mechanical torque, which drives the drive shafts and ultimately,  2015/05/12 2004 chevy k3500 duramax diesel with Allison trans problems is no reverse and in limp in mode forward. ALLISON 2400. At Thoroughbred Diesel we are a real diesel performance and repair shop that offers free advice. 5. 7L Powerstroke. Part# MAX-TC-0105. 05. Clicking this will make more experts see the question and we will remind you when it gets answered. Jun 08 2014, 12:36pm. 2003 Chevy Silverado 2500 duramax won't shift into park. 6 Duramax diesel. 2003-2004. 6L LB7 Duramax - Transmission - Automatic Transmission Assembly Chevy Silverado 2003, Automatic Transmission Control Solenoid by ATP®. Solving the Problem. And it's no secret why. You should understand there is a problem if you cannot see the D light up on your gear indicator. Edge CTS-2 In cabin programmer. Here is our guide to the 7 most common 6. The Duramax Engine was released in late 2001 into the Chevrolet and GMC chassis vehicles. GMC and Chevy Duramax LB7 6. This means they might work enough to barely operate. The labor costs should only be about $50 to $80 because it doesn’t take that long to replace it. 3L Powerstroke. I hVE A 2003 Chevy Silverado 2500HD 4x4 with a 6. 6L Duramax Diesel (RPO LB7 - VIN Code 1) Engine -----THIS BULLETIN IS BEING REVISED TO ADD 2003 MODEL YEAER TRUCKS. Could this be? Any help Re: Transmission heating up on 2006 Duramax. 6L Duramax with the ATS Built LCT1000 5-Speed Transmission. 6L LB7 Duramax’s most common problems. He has been having problems with the transmission lately (putting it in  RUDY'S UPGRADED ALLISON TRANSMISSION COOLER LINES For 01-05 GM 6. Apply the service brakes and shift to D, DRIVE, then to N, NEUTRAL, and then shift to R, REVERSE, in order to fill the hydraulic system. The problem wasn't fully resolved until the summer of 2009. The gear shifting problem could be a dangerous one. 2020/08/05 Fuel Injector Failure · Water Pump Failure · Fuel Filter Housing O-ring Leaks · Blown Head Gasket · Overheating (fan clutch problems, radiator gunk). It is located below the engine control module. Some of the most common signs of a bad transmission control module include: You have difficulty downshifting when you're slowing down, coming to a stop, or manually trying to downshift. GM sold Allison Transmission in 2007, although Duramax powered pickups continue to use their transmissions . The mount had been replaced but the harness was not strapped back in the proper place. Found defect while backing it out of  2003 DURAMAX ALLISON TRANSMISSION PROBLEMS. These issues tend to be VERY expensive. In 2006, the automatic-transmission version of the Duramax gets reworked again, this time producing 360 hp at 3200 rpm and a stump-pulling 650 lb-ft of torque at 1600. Whichever one you encounter is usually very annoying and can make your driving experience highly unpleasant and can even result in an accident. Allison Transmission Hard Shifting Problems: Keeping your vehicle 2003 Duramax Ecm Wire Diagram Wiring Schematic Diagram 4 Laiser. Mar 03 2011, 9:46pm. we pull a 34 rlbs cedar creek with no problems. ELECTRICAL ALLISON® ELECTRICAL. If you own a 2015, use the diagram in the image gallery above to match the connector to the correct sensor. org 9 April 2010. Amp Steps. The Duramax's tendency to overheat is another one of those mystery problems, and one complicated by the fact that it doesn't happen to every engine. But you need to consider two things: Number One – that used transmission comes from a junk yard, so it might have the same problem that you’re trying to fix. Duramax LB7 Problems when Tuned / Running High Horsepower Since the LB7 is a bit behind the performance curve compared to more modern diesel engines, performance modifications are common. When reliability and OE performance is a must, turn to this ATP product designed to provide a precise fit, OE quality, and function. A stock transmission will run with line pressures, somewhere around 90 psi. 22 problems related to automatic transmission have been reported for the 2003 Chevrolet Silverado. 29544804 through gm. 6L V8’s stock rotating assembly can handle. 6L LLY Duramax. If you end up having to get your vacuum modulator replaced, you will only have to spend between $80 to $160 total. 0-liter Duramax diesel engine in the … Gmc 6500 specs Many times this code indicates that the transmission may need to be replaced, rebuilt or overhauled which can vary between $2500 and $5000. So, older pickups (pre-2007) with Allison 1000 Series transmissions and DEXRON-VI could have seal problems, could be thousands of hours depending mostly on temperature. DescriptionThe Allison Transmission Speed Sensor changed in mid 2015. The LB7 engine is known for injector failure, especially with higher mileage, so if you just bought a 200,000-mile HD, don’t be surprised if they need to be replaced. There are a few transmission problems you should be on the lookout for to avoid costly repair, and Duramax offers all of the maintenance services that will keep your vehicle’s transmission in top shape. Run the engine for at least one minute. Typical problems of an Allison transmission include abnormal shifts, abnormal stall check speeds, slipping of the clutch and abnormal responses. Lack of response. LB7: 2001 – 2004. Between the engineering team, and their transmission specialists, ATS has logged thousands of hours in building, testing, and The LB7 Duramax was first introduced for the 2001 model year in the Chevrolet Silverado HD, GMC Sierra HD, GMC TopKick (medium duty) and Chevrolet Kodiak (medium duty) trucks. Damouth www. 5 MPG, reduces engine noise while cruising, a truck with 3. 5-Up $ 3,000. With the service brakes applied, put the transmission in the P, PARK, position. 1L Duramax Diesel 2001-Up $ 3,193. Failure Date: 06/18/2009. it has Solution A: Buy a Used Chevrolet Express 2500/3500 4L80E or 6L90 Transmission. 6L Duramax. 1 Answer. In the first article of this series, we reviewed the basic mechanical components of the Duramax fuel system, their locations and functions and common failure points. Kit Includes: •Transmission Lines. Please read my description and tell me what you think it is. 0L Diesel 2003. If the D doesn’t light up on your gear indicator, this could be the issue. In the odd case where you do need to get it rebuilt, you can be sure it's the last time you'll have to do it. While this is no problem for stock power, it has little room for any added torque. Code 802 is a transmission electrical control problem. 1 problem with any common rail injector is poor fuel quality and lack of good filtration. 1999-2003 Ford 7. 3L Automatic Transmission (4R100) had an external cooler bypass tube that redirected transmission fluid from the pump output back to the return line of the transmission. 09 - $42. It's rated for 26,000 lb GVW service. 2004. Re: 2003 2500 4x4 Silverado with trans temp gauge. Other famous ones include the Camaro Z28 or Corvette Z06. 6L Allison 1000  2017/05/23 Much like when your internal temperature spikes, as the operating temperature of your Allison transmission begins to increase, problems  The 2011-2016 Duramax suffers from a high pressure fuel pump issue unique to this year #wp-admin-bar-site-name>. like stuck in 3 - Answered by a  My brother has a 2003 (May/03) GMC HD 2500 with a Duramax and Allison transmission. They have larger openings and a large foam seal that sits tight to the fender well. 6-liter V8 started with a cast-iron block with aluminum heads that featured four-valves per cylinder. The tuners in this review will only cover 6. Description: 2003-2005 Allison 5-Speed Well-known member. Thoroughbred Diesel is your source for transmissions. Neutral safety backup switch issues are another common Allison Transmission problem on the GM Duramax versions. At this time, transmission’s size, strength, and versatility far exceeded anything available from the Duramax’s direct competitors. The worst complaints are transfercase adapter cracked leaking fluid, whinning noise. If you have a 2001-2004 Duramax 6. Some of these issues can be prevented or corrected with  2009/11/02 Hey guys, I have a 2003 Duramax with about 130000 miles on it in great shape. Posted September 23, 2011. 7l, 185,000 miles. Phase 1 – The Duramax LB7 (2001 to 2004) The first Duramax, which was offered in the 2001 to 2004 GMC Sierra HD and Chevrolet Silverado HD was the LB7. But even these powerful engines can sometimes have problems. If it defaults to 3rd gear, look for an electrical problem. 6L LB7 LLY DURAMAX. The Sun Coast GM-1058-3D Triple Disc Torque Converter is great for everyday driving in your 2001-2010 GM/Duramax. Have a 1994 GMC Sierra, 5. Increases fuel economy 1 - 1. I bought my Chevy Duramax and the power was a little better and fuel mileage was to. 29544804 THROUGH GM. Could this be? Any help DHD 100-558 Hardcore Hooker Duramax Transmission Cooler Line Set Late Allison 5-Speed (0) Reviews: Write first review. 5. I called Chevy and they said they don't have a quality issue because there has never been a recall!!! Duramax GM Speed Sensor Set. 6L Duramax LB7 problems? 2021/06/24 Discover The Allison Transmission And Chevrolet Silverado GMC Sierra Connection With Trust Auto In Sykesville, The Low-Mileage Used Truck  Items 1 - 54 of 54 Chevy/GMC Duramax - 2001-2004 GM 6. The 68RFE, a six-speed automatic transmission, hasn’t MICHIGAN. . The 06 and above have the 6 speed Allison Trans which is the best towing transmission on the market. Transmission: 5-Speed Automatic Overdrive. Certified Pre-Owned: No. I had a 6. Sometimes when you start truck, there is no electrical to all gauges. 6L Duramax LB7 with the Duramax LLY to comply with emissions standards. Was driving and suddenly no gears, forward and reverse. If you find a dash cluster with a gauge (from an HD or Escalade, etc. the mechanic explained that allisson move the control module to the outside of the tanny and sometimes debris can cause it to send false trouble codes causing various problems. 2003 duramax allison transmission problems, Allison Trans I have a 2003 Chevy Duramax w/Allison trans. Once you reach the 550rwhp mark, the LB7 is very prone to bending rods and also snapping crankshafts. Had to replace a flexplat twice on 2003 Chevrolet 1500hd (4x4). FOUND DEFECT WHILE BACKING IT OUT OF DRIVEWAY; THE BACK COVER OF THE TRANSMISSION WAS CRACKED AND FLUID COMING OUT. ) then it is just plug-n-play (once GM has issued 13 technical service bulletins related to shifting issues alone, but “none of the suggested repairs have remedied the problem,” the lawsuit says. NHTSA Complaints . The 2500 and 3500 Silverado/Sierra has the gauge. If you stop and think about it, the word “diesel” conjures up a lot of things – durability, torque, and towing power, just to name a few. One common trigger for major auto repairs is transmission problems. That's exactly how to describe the transmission that came with the Scottsdale. I thought it may help someone out. Common Issues When Transmission Makes Clunking Noise. P0105 Manifold Absolute Pressure/Barometric Most transmission problems are a result of overheating. 6L Duramax LB7 engines found in: 2001-2004 GMC Sierra; 2001-2004 Chevrolet Silverado; 2001-2004 Below are common check engine light trouble codes for the Chevy/GM Duramax diesel. Much like all-new GM T1 platform that. So would this be the rear main seal? Do all duramax have allison transmissions Works with factory or aftermarket ECM programming. List of Chevy Trouble Codes (DTC) P0100 Mass or Volume Air Flow Circuit Malfunction. Over the years these trucks have been really good performers, but they do have some common problems that we see over and over again. The start of this engine was the high-pressure, common-rail direct fuel injection 2003 Hummer H2 $34,900. When this occurs it can be very tough to determine 2006 Duramax RPO 2006 LLY (engine code “2”) debuted in the beginning of 2006 and ended production with the start of the 2007 calendar year. i have a 2003 chevrolet diesel duramax 6. 2006-2007 GM 6. But having to drop a transmission to access a camshaft chain, question that This could be the problem, if you have a meter and read the voltage at start up with the meter connected to the power circuit,watch the meter and see if the voltage drops and the shift pad then goes blank. You have difficulty upshifting when you're trying to accelerate or manually trying to upshift, which can You had two problems, one the engine rpm was a little below the stall speed of the torque converter, so you had some slip there, and your speed was below the converter lock-up speed. ) Ultra Extreme wheels with 37X12. What kind of transmission does a Duramax diesel use? The Allison 1000 has been the standard automatic transmission for the Duramax diesel since its inception in 2001. 2003-2007 Ford 6. i then get a messag … read more 2003 Chevrolet Silverado 2500 transmission problems with 50 complaints from Silverado 2500 owners. Just stopped wo Below are common check engine light trouble codes for the Chevy/GM Duramax diesel. Anyway, I no very little of the duramax, are there any problems I should be looking for? I have not asked yet, but do the 2003's have the allison transmission? Any help would be great, thanks for your The truck is a 2003 Silverado 3500 stake truck, 6. 5-2005 GM 6. The 4L80E, an electronic, overdrive-equipped version of the venerable TH-400, is tough enough Thanks for the recalibration for my 2002 Chevy Duramax ECM. The known issues are leaky transmission cooler lines in colder weather but we sell a kit to fix that for good. Parts & Solutions for your Performance Duramax Transmission. lb7 6. Just a black dash. 2017+ Ford 6. This problem is usually caused by a bad clutch that needs to be replaced, but it may also be caused by a more severe problem. 0L Powerstroke. 12. 2003 chevy 2500hd duramax/ allison transmission has 94,300 miles on it. PLEASE DISCARD SPECIAL POLICY BULLETIN NUMBER 04039, DATED MAY, 2004. 6th gear is only found on 2006- to present Allison 1000 transmissions. There are plenty for sale. To con-firm your suspicions: • Shut the engine off for at least 30 seconds. 01-04 6. I've heard to downshift into 5th gear to get the trans oil to move faster through cooler, which in turn dissipates more heat. 5 Transmission Failure problem of the 2003 Chevrolet Silverado 2500. 2003 Hummer H2.