1999 GMC Sierra power train problems
37 owner complaints filed with NHTSA name the power train on the 1999 GMC Sierra — 6% of all complaints for this model year.
What owners report
“Brake fluid leaking all over bottom of truck spraying out I took to a mechanic and had 1000 dollar brake line job done got truck back and abs brakes worked like manual brakes had a sensor and 2 ball joints replaced im being ripped of from a gmc loyal customer I was I guess back to ford or toyota…”
filed Jan 31, 2014
“Gas tank gauge works once in a while. Our mechanic said it was probably due to moisture. Also, the rear differential cover is either cracking or rusting through. I put a new gasket on it and the next day it was leaking again but not at the gasket. About 1/3 up from the bottom, you can see where…”
filed Aug 31, 2005
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp on, engine misfire, and/or engine noise. Technician may find…
PIP4138L · Service Bulletin/Repair Instructions · issued Dec 27, 2012This Preliminary Information communication provides information to the technician about vehicles that may have a planetary gear whine noise in first and second gear. Technician should compare the noise to a like…
PIP3259J · Service Bulletin/Repair Instructions · issued Dec 17, 2012
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 1999 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.