× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
1989 Chevrolet C3500 Cheyenne 7.4L Hesitation, Surge, MIL Lamp on
Posted to GM Driveability on 6/25/2000

hello all, this truck has been well maintained & tows a large 5th wheel. the engine was replaced somewhere else on a trip. they did ok on the install but reused bad exhaust manifolds. Owner came in complaining about the way it ran. we noticed cracked manifolds...

  Related Documents & Media  1989 Chevrolet C3500 Cheyenne

 
Message Closed w/FIX

car Vehicle Data

1989 Chevrolet C3500 Cheyenne

VIN 2GCGC39N9K
Engine7.4 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI / throttle body
SymptomsHesitation, Surge, MIL Lamp On
OccursIntermittently

Trouble Codes

42electronic spark control problem
Message Closed w/FIX

car Vehicle Data

1989 Chevrolet C3500 Cheyenne

VIN 2GCGC39N9K
Engine7.4 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI / throttle body
SymptomsHesitation, Surge, MIL Lamp On
OccursIntermittently

Trouble Codes

42electronic spark control problem