× 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
1998 Cadillac DeVille 4.6L Poor Idle Quality, Misfire, MIL Lamp on
Posted to GM Driveability on 9/25/2003 4 Replies

Hello once again. This car came in last week with a P0300 set, the MIL on of course, and a noticeable misfire. After a quick look, cylinder #5 was not firing at all. Turned out the injector, which ohmed out fine at 13.5 ohms, was not working. I replaced the in...

4 Replies Received (View Replies)

  Related Documents & Media  1998 Cadillac DeVille

 
Message Closed w/FIX

car Vehicle Data

1998 Cadillac DeVille

VIN 1G6KD54Y0W
Engine4.6 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Misfire, MIL Lamp On
OccursAlways, Cold, Hot, Cruise, Idle

Trouble Codes

P0300Multiple Misfire Detected
Message Closed w/FIX

car Vehicle Data

1998 Cadillac DeVille

VIN 1G6KD54Y0W
Engine4.6 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Misfire, MIL Lamp On
OccursAlways, Cold, Hot, Cruise, Idle

Trouble Codes

P0300Multiple Misfire Detected