CAR PROBLEMS

1995 Pontiac Bonneville

Tiny

jeff69

January, 28, 2011 AT 11:05 PM

I have a 95 pontiac bonneville that runs but idles rough and kinda hesitates when I excelarate what could cause this

FOUND 4553 RELATED QUESTIONS

Running Rough

27 ANSWERS
34 IMAGES

Idles Rough/changed Ects

37 ANSWERS
3 IMAGES

1 Answer

Tiny

rasmataz

March, 17, 2011 AT 3:07 AM

Do you have a check engine light on?

Could be caused by one of the following below: Oxygen sensor.
Catalytic converter.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position sensor.
Crankshaft position sensor
Knock sensor
Manifold absolute pressure sensor.
EGR Valve
Fuel pressure regulator leaking or defective fuel pump.
Fuel contamination.
Foul/defective spark plugs.
Open spark plug wires.
Ignition coil/Coil packs defective.
Incorrect ignition timing.
Cap and rotor.

Note: If it doesn't apply disregard it and keep testing.

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