Grand Prix GT Jerking

RACCHH21

MEMBER
2005 PONTIAC GRAND PRIX
6 CYL
2WD
AUTOMATIC
88,000 MILES

Enter your question.2005 Pontiac Grand Prix Gt stalled out three times at the gas station after I put gas in it when I put it in drive it was fine until I touched the gas the car started******** violently and jumping between 1000 and 3500 rpms. When its wasnt******** it still runs at 3500 when im on the gas even at 25mph. Put premium gas in (full tank) and fuel injector cleaner. And now its fine, am I going to have bigger problems

Thursday, March 3rd, 2011 AT 5:25 AM

1 Reply

RASMATAZ

MECHANIC
75,992 POSTS

Lack of acceleration, chugging, hesitating********, bogging, misfiring etc. 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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Thursday, March 3rd, 2011 AT 10:38 PM