1998 GMC Sierra power train problems
15 owner complaints filed with NHTSA name the power train on the 1998 GMC Sierra — 8% of all complaints for this model year.
What owners report
“Tl* the contact owns a 1998 gmc sierra. The contact stated there was a transmission leak. The failure was not diagnosed nor was the vehicle repaired. The manufacturer was contacted about the failure. The failure mileage and vin were unavailable.”
filed Nov 1, 2013
“1998 gmc sierra 1500 ext. Cab truck. Purchased used on 6/03/08. Odometer read 96,921miles. Less than 24 hours after purchase I noticed what felt like a slipping in the transmission going from 1st to 2nd, and 2nd to 3rd, under 15 mph when the engine was warm. I mentioned this to the dealer, who had…”
filed Jun 22, 2008
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
Four wheel drive inoperative and the 4wd service light will illuminate. Diagnosis may reveal that the atc fuse could be open, possible dtc c0308, or various u codes may be set. The encoder motor may also be shorted or…
3389 · Service Bulletin/Repair Instructions · issued Sep 28, 2005Diagnosis of cracked or broken transmission case. *tt 2006 and prior cars and light duty trucks. *tt
020730024A · Service Bulletin/Repair Instructions · issued Aug 1, 20054wd inoperative and diagnostic trouble code (dtc) u1026 atc fuse open. *tt
3349 · Service Bulletin/Repair Instructions · issued May 10, 2005
Power Train problems in other Sierra years
| Year | Reports | Share |
|---|---|---|
| 2017 Sierra | 23 | 38% |
| 2015 Sierra | 6 | 11% |
| 2014 Sierra | 10 | 10% |
| 2013 Sierra | 5 | 13% |
| 2012 Sierra | 2 | 7% |
| 2011 Sierra | 6 | 14% |
| 2010 Sierra | 1 | 3% |
| 2008 Sierra | 2 | 3% |
| 2007 Sierra | 4 | 7% |
| 2006 Sierra | 2 | 4% |
| 2005 Sierra | 11 | 9% |
| 2004 Sierra | 18 | 10% |
Other reported problem areas on the 1998 GMC Sierra
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.