1993 GMC Sierra power train problems
10 owner complaints filed with NHTSA name the power train on the 1993 GMC Sierra — 14% of all complaints for this model year.
What owners report
“Replaced the transmission 4 times, recall on seats were fixed but bolts keep breaking so I bought new seats of a differnt style and replaced them after a 5 year problem. Paint has been flaking off the truck for appoximately 4 yrs and I cant get the dealer or gm to do anything with this paint…”
filed Apr 22, 2004
“#1 transmission. Slips out of gear into nuetral while driving at highway speeds. Must coast over to side of road, turn off engine, wait, restart and continue on. Narrowly caused a collision with a semi truck while coasting to side of road. Complained to dealer numerous times, said they could not…”
filed Apr 22, 2004
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
Diagnosis of cracked or broken transmission case. *tt 2006 and prior cars and light duty trucks. *tt
020730024A · Service Bulletin/Repair Instructions · issued Aug 1, 2005Diagnostic information for intermittent transmission downshift, slip, busy/cycling tcc or noisy cooling fan. *tt
990730016A · Service Bulletin/Repair Instructions · issued Oct 1, 2002
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 1993 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.