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2003 Chevrolet Avalanche 1500 5.3L Misfire
Posted to GM Driveability on 4/28/2006 7 Replies

hello, and thanks for [...] said fuel pump was "whining", and a couple of days later the noise went away. next day the misfires started,multiple cyls,particularly 2 and 7,under all [...] filter was restricted,then exploded,causing the sound to go away, and clo...

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  Related Documents & Media  2003 Chevrolet Avalanche 1500

 
Message Closed w/FIX

car Vehicle Data

2003 Chevrolet Avalanche 1500

VIN 3GNEK13T42
Engine5.3 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMisfire
OccursUnder Load, on Accel

Trouble Codes

P0300Multiple Misfire Detected
Message Closed w/FIX

car Vehicle Data

2003 Chevrolet Avalanche 1500

VIN 3GNEK13T42
Engine5.3 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMisfire
OccursUnder Load, on Accel

Trouble Codes

P0300Multiple Misfire Detected