LOSS HORSEPOWER

2002 Pontiac Grand Am

Tiny

fireman1544

July, 29, 2011 AT 10:17 PM

20020pontiac grand am. Looses horse power hesitates, engine heats up over normal heat and somtimes cant get it over 45 mph

FOUND 2794 RELATED QUESTIONS

1 Answer

Tiny

rasmataz

July, 29, 2011 AT 10:22 PM

http://www.2carpros.com/articles/engine-hesitates

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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