× 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 C1500 Cheyenne 5.7L Excessive Emissions
Posted to GM Driveability on 1/17/2013 9 Replies

hi all, got this truck here that gross pollutes nox, egr system works when testing it by jumping a-b key on egr soleniod operates as designed, vac pump at tbody side valve opens remove jumper valve closes,power on pink wire ground signal on gray wire when a-b ...

9 Replies Received (View Replies)

  Related Documents & Media  1989 Chevrolet C1500 Cheyenne

 
Message Closed w/Summary

car Vehicle Data

1989 Chevrolet C1500 Cheyenne

VIN 1GCDC14KXK
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFuel Injection / tbi
Emissionsca emissions
SymptomsExcessive Emissions
OccursAlways
Message Closed w/Summary

car Vehicle Data

1989 Chevrolet C1500 Cheyenne

VIN 1GCDC14KXK
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFuel Injection / tbi
Emissionsca emissions
SymptomsExcessive Emissions
OccursAlways