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1998 Chevrolet C2500 Cheyenne 5.7L Misfire
Posted to GM Driveability on 5/28/2001 4 Replies

We did a valve/head job on this truck after the customer cooked it when a heater hose leaked. When we got it all back together, it now misses on cyls #1 & #2. Compression is good (150-160). Spark is good on all cylinders.

Are the injectors vulnerable to exce...

4 Replies Received (View Replies)

  Related Documents & Media  1998 Chevrolet C2500 Cheyenne

 
Message Closed w/FIX

car Vehicle Data

1998 Chevrolet C2500 Cheyenne

VIN 1GCGC24R4W
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMisfire
OccursAlways
Misc.Vortec

Trouble Codes

P0300Multiple Misfire Detected
Message Closed w/FIX

car Vehicle Data

1998 Chevrolet C2500 Cheyenne

VIN 1GCGC24R4W
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMisfire
OccursAlways
Misc.Vortec

Trouble Codes

P0300Multiple Misfire Detected