1999 Pontiac Bonneville Engine Problems
- Complaints
- 1about this part
- Share
- 1%of 143 total for the year
- Median mileage
- 130,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 1 complaints about the engine of the 1999 Pontiac Bonneville, 1% of the 143 complaints for this model year. Where a mileage was given, the median is 130,000 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Upon accelerating onto the highway, after reaching highway speed, vehicle stalls and would not start. Flooding engine, gasoline coming out of exhaust, engine would not restart. After research and replacing leaking lower intake manifold, this was not my problem there was no leak. After more research I replaced more sensors and eventually cylinder gaskets and lower intake gasket again. Still engine would not start. After 2 years of car sitting I unplugged maf sensor and then it started finally. …”
NHTSA complaint #10604668, filed 2014-06, 130,000 milesEngine: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2005 | 4 | 15% |
| 2003 | 9 | 17% |
| 2002 | 4 | 4% |
| 2001 | 9 | 7% |
| 2000 | 5 | 2% |
| 1999 | 1 | 1% |
| 1998 | 6 | 2% |
| 1997 | 1 | 1% |
| 1996 | 1 | 1% |
| 1995 | 1 | 0% |
| 1989 | 1 | 4% |
Other parts of the 1999 Pontiac Bonneville
59 complaintsFuel system
23 complaintsElectrical system
22 complaintsBrakes
9 complaintsAir bags
8 complaintsTransmission and drivetrain
8 complaintsVisibility (wipers, defrost, mirrors)
6 complaintsTires
5 complaintsOther or unknown
4 complaintsVehicle speed control
4 complaintsSteering
3 complaintsBody and structure
3 complaints
← All problems reported for the 1999 Pontiac Bonneville
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology