× 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
1994 Chevrolet C3500 7.4L Hesitation, Surge, Cuts out, backfire
Posted to GM Driveability on 9/11/2004 8 Replies

got a strange one here. truck will run fine and then all of a sudden you put a load on it and it will cut out and backfire on heavy acceleration. fuel pressure and volume are great. map looks good, new plugs. It doesn't appear to be a misfire. Watching the sca...

8 Replies Received (View Replies)

  Related Documents & Media  1994 Chevrolet C3500

 
Message Closed w/FIX

car Vehicle Data

1994 Chevrolet C3500

VIN 1GCHC39N7R
Engine7.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / tbi
SymptomsHesitation, Surge, Cuts Out, Backfire
OccursHot, Under Load, on Accel
Message Closed w/FIX

car Vehicle Data

1994 Chevrolet C3500

VIN 1GCHC39N7R
Engine7.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / tbi
SymptomsHesitation, Surge, Cuts Out, Backfire
OccursHot, Under Load, on Accel