Transfer Case Problems of GMC Sierra 2500

The contact owns a 2024 GMC Sierra 2500. The contact stated that while driving at an undisclosed speed, the vehicle briefly hesitated before returning to normal functionality. The check engine warning light was illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the transfer case seals. The vehicle was repaired, but the failure reoccurred. The vehicle was taken back to the dealer, who again diagnosed a failure with the transfer case seals. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 6,000.

The contact owns a 2004 GMC Sierra 2500 hd. The contact performed routine maintenance on the vehicle and observed that the transfer case (4 -wheel drive) contained pinholes, which led to an internal fluid leak. The transfer case fluid level was completely empty. The locking clip failed, which contributed to the failure. The vehicle was taken to an independent transmission shop and the technician replaced the locking clip. The failure mileage was 120,000 and current mileage was 126,000.

See all problems of the 2004 GMC Sierra 2500 🔎.

Allison transmission housing failed at 54,000 miles. Gm paid parts, I paid 1,200. 00 labor , was told that there was 2 bulletins out on defective housing and when they finished repair they said they installed updated housing so I would not have problem again. Don't think I should have paid anything to have it repaired! at 105,000 miles transfer case failed , cost 1,150. 00 to repair, have had to take back 2 more times as repair was not done right. At 112. 000 miles speedometer became erratic was told it was a common problem ,and see on complaint search it is , consider this a great safety danger as I do not know what speed I'm going can only guess not fixed yet found some who sells rebuilt ones foe 150. 00 ,said their rebuilding them due the large number that are failing. Also at 112,000 miles park neutral switch started acting up ,check engine light on ,shift bar light goes away, truck won't shift properly and stay in certain gears without shifting up ,effects door locks. Looked up park neutral shift as part and came across bulletins stating that during left hand turn front tire sprays water onto park neutral ,switch causing problem ,needs front & rear shield installed to solve problem. Have taken truck back in waiting for information. Also around 90,000 miles had very hard time starting truck and truck ran poorly,problem became worse took in, fuel injectors were bad and were replaced under warranty at 112,000 miles no need to say I'm not a GMC fan anymore , even though I live in lansing mi ( a gm town)and have lots of friends and family employed there. Good by GMC! never again.

The contact owns a 2002 GMC Sierra 2500. The contact noticed fluid on the ground and noticed that the undercarriage transfer case had a hole. He sealed the hole. The dealer stated that the undercarriage transfer gauge needed to be replaced at the cost of $2,000. The manufacturer is aware of the failure. There is no recall or technical service bulletin. The failure mileage was 131. 550 and current mileage is 131,523. Updated 09/16/08 updated 09/19/08.

See all problems of the 2002 GMC Sierra 2500 🔎.

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.

See all problems of the 2003 GMC Sierra 2500 🔎.

The contact owns a 2004 GMC Sierra 2500. While attempting to place the vehicle in reverse, the gear automatically shifted into neutral, causing the vehicle to coast backwards. Two days later, while driving at an unknown speed, the vehicle automatically disengaged out of two wheel drive and shifted into neutral. The vehicle would not accelerate so the contact safely pulled off the road and waited two minutes. He then pressed the button on the transfer case to re-engage the 4 wheel drive. He took his vehicle to the dealer and they replaced the transfer case control module and motor. There had been no further occurrences. The contact filed a complaint with the manufacturer. The failure mileage was 68,000 and current mileage was 68,268.

The automatic 4 wheel drive acted erratically causing the back end to become loose and resulting in the consumer loosing control of vehicle, skided off road and hit 2 fence posts. Nlm.

See all problems of the 1999 GMC Sierra 2500 🔎.