Two problems related to transmission fluid leaking have been reported for the 2001 Chevrolet 2500. The most recently reported issues are listed below.
The contact owns a 2001 Chevrolet 2500 hd. The transmission leaked and vibrated while driving. The mechanic found that the rear extension housing of the transmission had a crack and leaked transmission fluid. Gm stated that the vehicle was not under warranty. The transmission an allison 1000 for a diesel engine. The current and failure mileage were 78000.
2001 Chevrolet 2500hd truck: in may of 2002 the transmission started leaking at the front seal because of the converter bolts being loose. On 1/28/04 the rear case busted and leaked out all the fluid as well. Gm dealer says defective case. Allison transmission says that gm has a vibration in the drivetrain of these trucks that causes their transmission to break. Who do you believe? any suggestions?.