general problems of the 2005 GMC Sierra 2500

Slight clunking started when shifting into drive. Fluid on garage floor. Off to aamco. Found two holes in transfercase. The "4 star buffering ring" on shaft inside pounded two holes in casing. Just step on gas and torque pounds the ring into the casing until holes are made. All fluid pours out. Most people wont even know its happened until castastrophic failure. Several seals, chain, two gears, 3 bottles of fluid, "4 star buffer ring" and a new casing half was required. $2654. 00 to repair for a 12 month warranty. Aamco pointed out I did nothing wrong. Its an engineered failure point by gm. Add this to ; #1-speedo gear failure-20mph and gage reads 90 mph, #2-cd/radio burnt up, #3-water pump failure 16k miles, #4-cab of truck not attached to frame correctly "cab wobbling", #5-roof temp control unit failure, #6-passenger window motor stops working below 25 degrees, #7-factory installed battery was the wrong one when bought new in ogden, utah. Now,. . . . Airbags???.

Exhaust manafold bolts are breaking off for no apparent reason. I have four broken already and an exhaust leak developing. This appears to be a defect in manufacturing. I have a friend with two of the same trucks that the same thing has happened to. There are numerous complaints posted on the web. I have had many vehicals over the years and worked them hard but have never seen a broken exhaust manafold bolt on any of them. This can be a dangerous situation as having exhaust leaks under hood could cause a fire. As far as I know gm has not issued a bulletin or recall on this but there should be some remediation as this is an expensive repair and it is not a failure caused by the lack of maintenance. I have also heard reports of repaired units breaking again in about the same number of miles and having to be repaired again.

Noticed a noise in the front suspension/drive train. An alignment shop checked the front end and they found that the front sealed wheel bearings were about to have a catastrophic failure. Vehicle has 65,000 miles and has never been subjected to harsh environments. Was told that the vehicle could not be driven safely. Sealed bearings have no maintenance options and can create an accident. Learned of other GMC front wheel bearing issues while meeting with the shop to arrange for repairs.

The contact owns a 2003 GMC Sierra 2500 hd. The contact stated that the power steering would seize and the vehicle would hesitate to stop when the brakes were depressed. In addition, the transmission, windshield wipers, cruise control, and the instrument cluster failed. The vehicle was taken to the dealer who replaced the transmission, but the failure recurred. The manufacturer was notified of the failures, but denied any assistance with repairs to the vehicle. The vehicle was not further repaired. The failure mileage was 29 and the current mileage was 100,000.