1990 Pontiac Grand Prix engine problems
Owners reported engine problems in 19 complaints for the 1990 Pontiac Grand Prix, 8% of the complaints on file.
At a glance
- Complaints
- 19 8% of this year's complaints
- Crashes and fires
- 0 and 0
- Injuries and deaths
- 0 and 0
Source: NHTSA owner complaints
What the data shows
None of the engine complaints mention a crash, fire, injury or death.
What owners wrote
Coming to a stop the car stalled , repaired two alternator s, five water pumps, one new computer system and a turbo-charger was placed . Please describe.
Car would get horrid gas mileage, occasionally stall, exhaust smell under hood, black exhaust. The crossover pipe from each exhaust manifold has a common cracking on the bellows and must be replaced, they run $2500 from GM which just crack again, or $425 for jeff m one that doesn't crack. The pipe cracks cause fresh air to enter the exhaust and the oxygen sensor thinks the cars running rich, causing horrible gas mileage, oil contamination, and stalling.
Other problems reported for the 1990 Pontiac Grand Prix
- Brakes 121 complaints
- Body & structure 28 complaints
- Electrical system 21 complaints