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2002 Chevrolet Impala 3.4L Misfire
Posted to GM Driveability on 12/10/2008 9 Replies

This car came in for random misfiring so i gave it full tune up including coils and [...] vehicle comes back and they say it is still doing the same [...] i test drive it to duplicate [...] says it only does it at low speeds,so I shift it down to 1st gear and ...

9 Replies Received (View Replies)

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car Vehicle Data

2002 Chevrolet Impala

VIN 2G1WF55E12
Engine3.4 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / sefi
EmissionsOBD-II Compliant
SymptomsMisfire
OccursUnder Load
Message Closed

car Vehicle Data

2002 Chevrolet Impala

VIN 2G1WF55E12
Engine3.4 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / sefi
EmissionsOBD-II Compliant
SymptomsMisfire
OccursUnder Load