HVAC unit intermittently not working properly?

2011 DODGE RAM
161,000 MILES • 5.7L • V8 • 4WD • AUTOMATIC
Avatar
KINGJD123
  • MEMBER
  • 104 POSTS
Hey, I'm curious to what is going on with my HVAC unit. I can't turn the heat or A/C on and i can't switch where it will blow. all the stages of the blower are working so it's not the blower motor. But i tried to take it to the mechanic shop one day and started working out of nowhere, i tried it this morning and it isn't working again. Any ideas?
Mar 28, 2023 at 8:55 AM
Avatar
STRAILER
  • ✓Experienced Mechanic
  • 55,540 POSTS
This happens when the mode actuator goes out, here is the location so you can see what needs to be done. Once the actuator has been removed you can work the pitcot by hand with the system on to see if the air returns to confirm the failure. Check out the images (below). Please let us know if you need anything else to get the problem fixed.
Images (Click to enlarge)
Attached Media
Attached Media
Attached Media
Mar 29, 2023 at 11:36 AM
🔧 Tools & Auto Repair Parts
Find automotive tools, diagnostic equipment, and replacement parts for your next repair.
Shop on Amazon →
Paid affiliate link. As an Amazon Associate, we earn from qualifying purchases.
Add a reply
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 new question

Frequently Asked Problems for This Vehicle