× 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
1991 Cadillac DeVille 4.9L BCM?
Posted to GM HVAC on 1/17/2000

The problem I'm having is the system is switching from heat to ac somewhere around 2-4 deg before preset temp is reached. There are no codes, data is showing when auto is set @ 72deg the amb. temp is showing around 68, inside temp 68, sunload approx. 230,t...

  Related Documents & Media  1991 Cadillac DeVille

 
Message Closed w/FIX

car Vehicle Data

1991 Cadillac DeVille

VIN 1G6CD53B2M
Engine4.9 L / 8 cyl
AffectedBCM?
ConditionsUnstable
Message Closed w/FIX

car Vehicle Data

1991 Cadillac DeVille

VIN 1G6CD53B2M
Engine4.9 L / 8 cyl
AffectedBCM?
ConditionsUnstable