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Engine Misfiring, Runs Roughly


definitely annoying
Typical Repair Cost:
Average Mileage:
131,600 miles
Total Complaints:
3 complaints

Most Common Solutions:

  1. not sure (3 reports)
1999 Pontiac Grand Prix engine problems

engine problem

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1999 Pontiac Grand Prix Owner Comments

problem #3

Dec 092011

Grand Prix SE 3.8L

  • Automatic transmission
  • 174,800 miles


well i was driving and my service engine light goes on and the car is running rough. and im thinking its a head gasket or coolant leaking into my cylinders because my exhaust puts out white smoke and the funny thing is i just had something fixed on it at sid dillon with the spark plug wires.

- , Lincoln, NE, USA

problem #2

Oct 082010

Grand Prix 3800

  • Automatic transmission
  • 150,000 miles

I just bought this car and am trying to fix it up.And it makes me yell every time I have to start it and stop,and it starts and stops again and again.

- , pemberton, nj, USA

problem #1

Jul 122004

(reported on)

Grand Prix LX

  • 70,000 miles

40K miss starts with check engine light. Put new wires on $40.00. Still misses and Check engine light on. Dealer Diagnostic Exam: $80.00. Dealer recommends Transmission Pressure Control Valve be replaced because of code on diagnostics. Also recommends plugs, more new plug wires, fuel injector cleaning. Total $1400. Leave Dealership pissed.

Go to tune-up place: get plugs, no new wires because wires were new, fuel inj. clean. $360.00. Miss and check eng light goes away till car warms up. Miss back with check eng light on.

Ready to burn car.

- , Wilmington, NC, USA

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