2001 Dodge Ram AC heater control

2001 DODGE RAM
47,000 MILES • V8 • 4WD • AUTOMATIC
Avatar
WATERDOG7302
  • MEMBER
  • 1 POST
I have a door at the heater coil that will not hold. Its all heat or all cold. If i hit the brakes i can hear the door close. If i make a adjustment on the heater control knob i can hear the door close shut. if i turn the fan on high i can hear the door close and i get all heat when this happens. if i turn the fan on low i get the ac back. I have no control over that door. PLEASE HELP.
Apr 10, 2010 at 10:12 PM
Advertisement
Avatar
JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
It sounds like the linkage has come off. Under the dash on the passanger side (HVAC) box, check to make sure the linkage is still attached to the vent door actuator. If it is, make sure there is vacuum to the actuator. If all looks good, the blend door is the problem which requires part of the dash to be removed.
Apr 12, 2010 at 12:31 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.