2006 GMC C2500 CONTROLS

2006 GMC C2500
780,000 MILES • V8 • 2WD • AUTOMATIC
Avatar
SCOTT WILLIAMS
  • MEMBER
  • 1 POST
my a/c runs for awhile than all of asudden the heater starts blowing on the driver side. why ?
Oct 14, 2010 at 1:15 PM
Advertisement
Avatar
HMAC300
  • ✓ASE Certified Mechanic
  • 48,601 POSTS
  • ASE Certified Mechanic
oneof your actuators on theheater box isn't working correctly or the control unit is making it do that. This picture is similarto what you have. they can be electric or vacuum


https://images.2carpros.com/forum/automotive_pictures/406719_actuator_8.jpg

Nov 2, 2010 at 5:56 PM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.