× 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
2003 GMC Sierra 2500 HD SLE 6.6L HVAC control
Posted to GM HVAC on 11/30/2011 7 Replies

This is my personal truck and I've finally gotten annoyed enough to fix it.

What I have going on is my HVAC unit will not control the temp on manual mode(It also does not maintain a temp when set to AUTO mode either). When I set it to 60*F it blows cold but o...

7 Replies Received (View Replies)

  Related Documents & Media  2003 GMC Sierra 2500 HD SLE

 
Message Closed w/FIX

car Vehicle Data

2003 GMC Sierra 2500 HD SLE

VIN 1GTHK23193
Engine6.6 L / 8 cyl / DIESEL
Trans5-speed Automatic (Electronic)
DeliveryFuel Injection
AffectedHVAC Control
ConditionsNo Temp Control. Either Its Hot or Cold
Message Closed w/FIX

car Vehicle Data

2003 GMC Sierra 2500 HD SLE

VIN 1GTHK23193
Engine6.6 L / 8 cyl / DIESEL
Trans5-speed Automatic (Electronic)
DeliveryFuel Injection
AffectedHVAC Control
ConditionsNo Temp Control. Either Its Hot or Cold