1997 PONTIAC SUNFIRE NO POWER

  • Tiny
  • breaks189
  • 1997 Pontiac Sunfire

Engine Performance problem
1997 Pontiac Sunfire 6 cyl Front Wheel Drive Automatic

My car has no power, I know that its not the transmission or the motor. Its shifting and running and it will go but it just dont have any power what could be the problem?

Thursday, July 15th, 2010 AT 12:59 PM

1 Answer

  • Tiny
  • rasmataz
  • Member

Lack of acceleration, chugging, hesitating, bogging etc. Could be caused by one of the following below: Possibilities: Inspect and test all the following listed 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.
False air leakage.
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.

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Friday, July 16th, 2010 AT 1:26 AM

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