Table 1 shows three common power train related problems of the 2008 GMC Sierra 2500.
| Problem Category | Number of Problems |
|---|---|
| Power Train Driveline problems | |
| Power Train problems | |
| Clutch Bell Housing problems |
While driving at 55 mph on a flat, straight, no traffic, early morning, clear day, new road, between key largo, florida and homestead, florida, my 2008 GMC quadcab diesel with 40,000 miles began vibrating violently. After about 4-5 seconds of tremendous vibration and deceleration, at approx. 35 mph, there was a loud bang. The vehicle was stopped safely on the paved shoulder. After examination on a flat bed tow truck, it was discovered that the "u" joint broke connecting the driveshaft and transmission. The free-wheeling driveshaft punctured three holes in the front floor of the cab, crushed the catalytic converter, smashed the anti lock brake module, broke the gearshift cable, and bent the driveshaft. A steel chasis cross member prevented the driveshaft from dropping to the pavement thus preventing a possible vehicle end over end rotation. The vehicle has a 100,000 mile power train warranty. Today, 3-21-11, 21 days after the incident, no repair has begun on the vehicle. Only three days of rental car was provided. Why has it taken so long to authorize the continuation of a rental car and the gm 100,000 mile power train warranty repair? apparently, a gm representative outside of the dealership of homestead Chevrolet Cadillac in homestead, florida must authorize the warranty repair because the damage exceeds $3000. They would also cover the cost of a rental car. The vehicle owner has documented proof of completing all the required service and safety checks from exclusively GMC dealerships in florida and georgia. Please help to resolve this issue as soon as possible. Please advise general motors (gm) that the 100,000 mile power train warranty is certainly applicable to cover the entire vehicle damage repair and cover a rental car for the duration of the repair.
Engine went into limp mode while traveling 70 mph.
I was inspecting my truck for proper fluid levels and wear when I found my transmission dipstick tube laying on my engine oil dipstick tube. I went to grab it to see what was going on and it was just flopping in the wind. I pulled my truck onto ramps, slid underneath and inspected the issue. I found the transmission dipstick/fluid filler tube completely fractured in half. The dipstick is the only thing holding it in place. I searched the web and found that there had been a recall on this failure, but that the recall had not been applied to my VIN. My truck=2008gmc Sierra 2500hd with a gas 6. 0l engine and a 6l90 transmission. My mileage=71,800. The tube is completely severed just above the bracket that mounts the tube to the bell housing. Mind you - this is a 4 wheel drive pick up that I use as a 4 wheel drive. Sound silly, I know, but the recalls were against 2010-2013 escalades and such. An escalade!?? they sited "engine vibration" I believe the failure is more likely to be due to over hardening of the tubing leading to brittleness. Bouncing and engine vibrations just did the rest of it. I spoke with a lady at gm and she created a case for me. She said to go to the dealership, have them inspect it and then get with their customer service experience contact there. We'll see what that results in for me.