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2004 Chevrolet Impala 3.4L Hesitation, Misfire, Poor Fuel Economy
Posted to GM Driveability on 5/10/2007 5 Replies

Customer says the engine misfires sometimes for a second when the vehicle is cruising approx 60 mph. I was able to verify the symptom. I drove the vehicle for approx 5 miles and it ran great. No misfire showed on the scan tool data except twice where a few cyl...

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  Related Documents & Media  2004 Chevrolet Impala

 
Message Closed w/FIX

car Vehicle Data

2004 Chevrolet Impala

VIN 2G1WF52E84
Engine3.4 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / EFI
EmissionsOBD-II Compliant
SymptomsHesitation, Misfire, Poor Fuel Economy
OccursHot, Cruise, Intermittently

Trouble Codes

P0300Multiple Misfire Detected
Message Closed w/FIX

car Vehicle Data

2004 Chevrolet Impala

VIN 2G1WF52E84
Engine3.4 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / EFI
EmissionsOBD-II Compliant
SymptomsHesitation, Misfire, Poor Fuel Economy
OccursHot, Cruise, Intermittently

Trouble Codes

P0300Multiple Misfire Detected