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2002 Chevrolet Impala 3.4L Misfire, MIL Lamp on
Posted to GM Driveability on 7/11/2009 42 Replies

this car has a very slight misfire only at idle on cylinder #3. we have swaped plugs wires #3 ign. coil and replaced ign. module and #3 injector with no change. off idle it runs great but you can feel a slight miss at idle. there is no engine noise when runnin...

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  Related Documents & Media  2002 Chevrolet Impala

 
Message Closed w/FIX

car Vehicle Data

2002 Chevrolet Impala

VIN 2G1WF55E62
Engine3.4 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMisfire, MIL Lamp On
OccursHot, Idle

Trouble Codes

P0300Multiple Misfire Detected
P0303Cylinder 3 Misfire Detected
Message Closed w/FIX

car Vehicle Data

2002 Chevrolet Impala

VIN 2G1WF55E62
Engine3.4 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMisfire, MIL Lamp On
OccursHot, Idle

Trouble Codes

P0300Multiple Misfire Detected
P0303Cylinder 3 Misfire Detected