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1988 Chevrolet C3500 Cheyenne 7.4L PROM
Posted to GM Driveability on 8/14/2006 6 Replies

The Owner Has Put A Used ECM From an truck that had 5.7 and also switch the big prom so that it stayed with the right motor. My Question is that there is also an small chip that is beside the prom that the owner did not change over. Would that small chip be an...

6 Replies Received (View Replies)

  Related Documents & Media  1988 Chevrolet C3500 Cheyenne

 
Message Closed w/FIX

car Vehicle Data

1988 Chevrolet C3500 Cheyenne

VIN 1GBCHR34N4
Engine7.4 L / 8 cyl / GAS
Trans4-speed Standard
DeliveryFI / TBI
EmissionsUS FED
SymptomsProm
Message Closed w/FIX

car Vehicle Data

1988 Chevrolet C3500 Cheyenne

VIN 1GBCHR34N4
Engine7.4 L / 8 cyl / GAS
Trans4-speed Standard
DeliveryFI / TBI
EmissionsUS FED
SymptomsProm