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1999 Chevrolet Silverado 1500 5.3L Engine
Posted to GM Engine on 1/29/2008 22 Replies

Cylinder # 4 misfire (P0304) resets consistantly. Unplugging (new) injector & (new) coil on cyclinder 4 makes no difference to idle quality. Spark plug gets dark on the cylinder. Compression seems ok. Vaccuum guage connected to intake while running does not fl...

22 Replies Received (View Replies)

  Related Documents & Media  1999 Chevrolet Silverado 1500

 
Message Closed w/FIX

car Vehicle Data

1999 Chevrolet Silverado 1500

VIN 2GCEK19TXX
Engine5.3 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
AffectedEngine
ConditionsMisfire
Message Closed w/FIX

car Vehicle Data

1999 Chevrolet Silverado 1500

VIN 2GCEK19TXX
Engine5.3 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
AffectedEngine
ConditionsMisfire