1999 GMC Sierra suspension problems
39 owner complaints filed with NHTSA name the suspension on the 1999 GMC Sierra — 7% 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
“Odd noise from vehicle. Stopped and noticed the center of the vehicle was low (box and back of cab were in contact at the top and separated by several inches at the bottom. Looked at frame and saw that right side of frame was rusted and is cracked almost all the way through, allowing frame to sag…”
filed Mar 21, 2013
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
This technical bulletin provides a procedure to lube the rear leaf springs on vehicles with the condition of a squeak noise originating from the rear of the vehicle.
06-03-09-004H · Service Bulletin/Repair Instructions · issued Jul 17, 2017
Suspension problems in other Sierra years
| Year | Reports | Share |
|---|---|---|
| 2017 Sierra | 2 | 3% |
| 2015 Sierra | 1 | 2% |
| 2014 Sierra | 5 | 5% |
| 2012 Sierra | 2 | 7% |
| 2011 Sierra | 1 | 2% |
| 2010 Sierra | 1 | 3% |
| 2009 Sierra | 1 | 3% |
| 2008 Sierra | 1 | 1% |
| 2007 Sierra | 2 | 3% |
| 2006 Sierra | 6 | 11% |
| 2005 Sierra | 9 | 8% |
| 2004 Sierra | 3 | 2% |
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.