Bulletins
| Bulletin | Bulletin date | Replacement Bulletin | Item no. | Summary | Added |
|---|---|---|---|---|---|
| POWER TRAIN - AUTOMATIC TRANSMISSION - COOLING UNIT AND LINES | |||||
| 121202 | 12/12/2002 | 10002746 | New transmission oil cooling system flushing tool. 1998 and 2003 chevrolet and gmc medium duty trucks equipped with 4l80e automatic transmissions. *tt | 09/12/2003 | |
Consumer Complaints
| Fail date | miles | occurences | Purchase date |
|---|---|---|---|
| POWER TRAIN - AUTOMATIC TRANSMISSION | |||
| 10/22/2007 | 85000 | 1 | 07/15/2003 |
| I purchased a 2003 gmc sonoma for my son, in july of 2003 and we have had nothing but problems with it. we were told yesterday we need a new transmission and was quoted a price from $1,500.00-$2,500.00. we are going to pay it because we still are paying a payment on it and cannot afford to get another vehicle. my question is isn't general motors responsible for the products they sell. i do not have an american vehicle and i would like to buy american but they do not stand behind their products. *jb | |||
| 10/01/2006 | 33000 | 1 | 07/26/2006 |
| 03 gmc sierra got used in aug 06 with 31000 miles now has 36000 miles and transmission has clunk between 2 &3 gears from all the research i have done it seems this is happening to lots of people i will bring this to gm`s attention because it still under gmc certified warranty but i don`t think it will get me anywhere please help. *nm | |||
| 11/17/2005 | 8977 | 2 | 08/29/2003 |
| Loud clunk in drivetrain when transmission upshifts 2-3 and downshifts 3-2. vehicle is 2003 gmc pick-up truck 4x4. dealer #1 replaced driveshaft. no change. dealer #2 diagnosed the clunk as a momentary torque reversal of the output shaft when the clutch is applied and the 2-4 band released. see gm information bulletin #01-07-30-042c (sept. 27, 2005) gm says this is normal and no repairs should be attempted. this constant clunking is not normal and is aggravating to the driver and owner. a new vehicle should be free of mechanical defect as the warranty states. this condition may be worse in 4x4 vehicles due to tolerances in the transfer case. gm will not rectify this defect while under original warranty. it is their duty to sell a defect free vehicle. i have discussed this problem with gm, bbb, a truck dealer and a transmission repair shop. my conclusion is that a reprogramming of the bands in the transmission case will correct this defect. gm is not willing to make this remedy available to the vehicle. my expectation is that the vehicle should be defect free during warranty period. the standoff! the federal government should protect the unwitting buyer from the failures of auto makers to warrant a defect free product as they claim when they sell the product. otherwise, it is a gross misrepresentation of a promise and fraud. *jb | |||
| 05/03/2003 | 300 | 2 | 03/30/2003 |
| Missing and they seem not able to fix it some times it shifts hard other times it backfires it has been in the shop twice all they can say is the computer shows nothing and that how the engine runs and that is unacpectable to me for a new truck. *la | |||
| POWER TRAIN - TRANSFER CASE (4-WHEEL DRIVE) | |||
| 12/04/2007 | 114200 | 1 | 10/07/2002 |
| Transfer case has holes in it & fluid leaked out. *tr | |||