2003 GMC Sierra 2500 transmission problems

Filed Apr 26, 2016 · Engine, Transmission · 180,000 miles · LA

Tl* the contact owns a 2003 gmc sierra 2500. While driving at any speed, the vehicle stalled, lost power, and the service engine light illuminated. The vehicle was taken to an independent mechanic who was unable to diagnose the failure. The failure recurred. The manufacturer was made aware of the failure and advised the contact to take the vehicle to a local dealer for diagnostic testing. The vehicle was not diagnosed or repaired. The failure mileage was 180,000.

Filed Oct 26, 2014 · Brakes, Fuel system · 170,000 miles · NJ

Brake line leaks, brake stopped working because of rusted brake lines. Also fuel and transmission lines are rusted badly.

Filed May 7, 2014 · Engine, Transmission · ME

Tl* the contact owns a 2003 gmc sierra 2500. The contact stated that there was a loss of power while traveling at any speed. The warning light illuminated for loss of power intermittently. The contact had to depress the acceleration pedal to the floorboard to accelerate on more than one occasion but to no avail. The vehicle continued to stall without warning. The vehicle was taken to an authorized dealer more than five times, who was not able to replicate or determine the cause of the failure. The vehicle had also been taken to the dealer for diagnosis but to no avail. The manufacturer was notified of the failure. The approximate failure mileage was not available.

Filed May 15, 2012 · Brakes, Transmission · 41,000 miles · RI

Front brake lines failed on boat ramp on 9/15/2010 rear brake lines failed on 7/20/2011, transmission lines fail on 5/10/2012 I am sure gas lines are next. Truck is a complete rust bucket underneath.

Filed Dec 16, 2011 · Transmission · LA

Transfer case made a grinding noise. Notice cut on outside of the case.

Filed Jan 2, 2008 · Transmission · 75,000 miles · KS

Transfer case burt up due to faulty clip design, snap ring wore into case, very poor case design. An aftermarket manufacturer has come up with a better back half of the case and upgraded pump to fix this problem.

Filed May 2, 2007 · Transmission · 104,000 miles · GA

I entered the truck stepped on the clutch pedal, shifted into reverse and started to ease the clutch out when the pedal went all the way to the floor board. The vehicle immediately chirped the back tires at no more than 950 r.p.m.'s and began to immediately go backwards towards another vehicle in my driveway. I quickly stepped onto the brake and stalled the vehicle to a stop. I then proceeded to look under the dash to see what had "popped" and found that I could see light throughout the firewall, as I moved the pedal up and down. I opened the hood to find that the black plastic flange that the clutch master cylinder mounts to had broken or shattered releasing the master cylinder therefore, completely disengaging the clutch. Had I not been quick to react, I would have struck another vehicle in the side causing extensive damage. Had I been in 1st gear when the failure occurred I would have lunged foward at the end of my driveway and off a 10' ledge straight down into my neighbors backyard, resulting in personal and property damage. This vehicle has only approx 104 thousand miles. This was a poor design and has failed in a very dangerous manner. This needs to be recalled immediately.

Filed Nov 15, 2004 · Brakes, Suspension · 43,000 miles · CA

Vehicle started to make noise. Consumer took the vehicle to the dealer to have the tires checked. Front tire axle nut was found to be loose. Also, the rotors and bearings had to be replaced.

Filed Oct 17, 2004 · Transmission · 34,800 miles · TX

2003 gmc sierra 3/4 ton, 8.1 litre engine with allison transmission-gm says they are aware there is a problem with the driveshaft where it goes in to the rear end. Every 10,000 to 15,000 miles it must be removed and cleaned, greased and replaced. They are unwilling to place this on a recall list and say in the future it will be a maintenance item and it will be done at the owners expense every 2 or 3 oil changes. As for mine they will do it for a short time longer and then it will be my problem-this is a definite defect they acknowledge but refuse to do anything with these vehicles that already have this problem, if you are already out of original warranty and did not purchase the extended warranty you will just have to pay out of your own pocket,them knowing fully about the problem.

Filed Jan 22, 2004 · Transmission · 1,041 miles · VA

I have a 2003 gmc sierra 2500hd. The four wheel drive works intermittently. According to gmc document id#1400441 there is no fix for this problem now. However, they are working on the problem and as soon as a fix is available they will make the repairs in the trucks. This problem applies to 2003 and 2004 k series. These trucks are not only used personal but in some cases, also in emergency rescue and fire services where the 4 wheel drive may be needed to gain access to patients. I can be contacted for further details.