× 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
1992 Cadillac DeVille 4.9L MIL Lamp on
Posted to GM Driveability on 1/19/2006 3 Replies

We are lost on this [...] have cleaned all grounds,added a jumper ground off ground at alt bolt and performed tsb on main [...] have replaced ecm and park neutral switch but still get a service engine soon light and a code 91 after a very short [...] help to r...

3 Replies Received (View Replies)

  Related Documents & Media  1992 Cadillac DeVille

 
Message Closed

car Vehicle Data

1992 Cadillac DeVille

VIN 1G6CD53B6N
Engine4.9 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
SymptomsMIL Lamp On
OccursIntermittently

Trouble Codes

91park neutral switch concern
Message Closed

car Vehicle Data

1992 Cadillac DeVille

VIN 1G6CD53B6N
Engine4.9 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
SymptomsMIL Lamp On
OccursIntermittently

Trouble Codes

91park neutral switch concern