1999 GMC Suburban engine and engine cooling problems
23 owner complaints filed with NHTSA name the engine and engine cooling on the 1999 GMC Suburban — 8% of all complaints for this model year.
What owners report
“1999 gmc suburban. Intake manifold gasket failed. This occurred after replacing the water pump which failed for the second time in less than a year. My mechanic says this is epidemic with the gm vehicles which use the dexcool antifreeze. My experience bears this out: my previous vehicle was a 1999…”
filed Oct 11, 2006
“1999 gmc suburban intake manifold gasket failure on 5.7l engine resulting in leaking antifreeze, and expensive fix. Thousands of similar failures, there should be a (forced) recall based on magnuson-moss ! *nm”
filed Aug 18, 2006
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Engine and Engine Cooling problems in other Suburban years
| Year | Reports | Share |
|---|---|---|
| 1998 Suburban | 5 | 5% |
| 1997 Suburban | 20 | 10% |
| 1996 Suburban | 8 | 5% |
| 1995 Suburban | 7 | 3% |
| 1994 Suburban | 9 | 2% |
| 1993 Suburban | 6 | 3% |
| 1992 Suburban | 2 | 3% |
| 1991 Suburban | 1 | 3% |
Other reported problem areas on the 1999 GMC Suburban
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.