CAR STUMBLES AT ACCELERATION

2000 Chevrolet Impala

Tiny

LARRY MONTGOMERY

April, 8, 2011 AT 1:57 AM

Car stumbles from dead stop. Does not trip any codes. I have replaced almost every sensor including plugs and wires with no effect. Any suggestions.

FOUND 2794 RELATED QUESTIONS

2 Answers

Tiny

rasmataz

April, 8, 2011 AT 2:02 AM

When was last tune-up?

Could be one of the following below: Oxygen sensor.

Catalytic converter.

Fuel injectors dirty/sticking.

Mass airflow sensor/Airflow meter.

Throttle position 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

Tiny

freemba

April, 8, 2011 AT 3:42 PM

Use carburetor cleaner to clean the throttle body (inside where the throttle plates are) and the idle air control solenoid.

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