× 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
1990 Cadillac DeVille 4.5L Poor Idle Quality, Hesitation, Surge, Misfire
Posted to GM Driveability on 9/19/2006 13 Replies

Got his car several months ago. Egr was leaking badly and plugs fouled (no vacuum to egr at idle). Replace both and did not correct problem. Tested injector resistence and found 3 bad ones. Replaced them. Still no better. Road tested and got it hot and reteste...

13 Replies Received (View Replies)

  Related Documents & Media  1990 Cadillac DeVille

 
Message Closed

car Vehicle Data

1990 Cadillac DeVille

VIN 1G6CD5336L
Engine4.5 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI / Port
SymptomsPoor Idle Quality, Hesitation, Surge, Misfire
OccursHot
Message Closed

car Vehicle Data

1990 Cadillac DeVille

VIN 1G6CD5336L
Engine4.5 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI / Port
SymptomsPoor Idle Quality, Hesitation, Surge, Misfire
OccursHot