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CAR STUMBLES AT ACCELERATION
2000 Chevrolet Impala
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.
Friday, April 8th, 2011 AT 1:57 AM
When was last tune-up?
Could be one of the following below: Oxygen sensor.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position sensor.
Manifold absolute pressure sensor.
Fuel pressure regulator leaking or defective fuel pump.
False air leakage.
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
Friday, April 8th, 2011 AT 2:02 AM
Use carburetor cleaner to clean the throttle body (inside where the throttle plates are) and the idle air control solenoid.
Friday, April 8th, 2011 AT 3:42 PM
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