SPONSORED LINKS

No heat?

Tiny
ELIZABETH NICHOL-MANN
  • MEMBER
  • 2004 PONTIAC GRAND PRIX
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 238,000 MILES
My A/C works, fans work on all speed settings, car does not overheat, blower motor works. But I have no heat. Just blows cold air.
Monday, October 3rd, 2022 AT 6:50 AM

3 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,643 POSTS
First with the engine cold check the coolant level, With the engine hot, see if the heater hoses are hot as well, if not you may have a clogged heater core, or the temperature blend door actuator is not working.

here is a guide to help you with the temperature blend door actuator location in the diagrams below:

https://www.2carpros.com/articles/car-heater-not-working

Check out the images (below). Let us know what happens and please upload pictures or videos of the problem.

Images (Click to make bigger)
Thumb
Thumb
Thumb
Thumb
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Monday, October 3rd, 2022 AT 3:44 PM
Tiny
ELIZABETH NICHOL-MANN
  • MEMBER
  • 2 POSTS
Coolant level is okay, heater hoses get hot too. Just no heat gets into the car.
Was this
answer
helpful?
Yes
No
Monday, October 3rd, 2022 AT 7:58 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,643 POSTS
Yep, this means the temperature blend door actuator is not working, I would change it out.
Was this
answer
helpful?
Yes
No
Tuesday, October 4th, 2022 AT 2:23 PM

Please login or register to post a reply.

Related Heater Not Working Content

Heater Not Working
VIDEO
Heater Not Working
Instructional repair video
Heater Not Working
GUIDE
Heater Not Working
Step 1 - A heater cannot operate unless the engine is full of coolant/antifreeze. If coolant level is low check the system for leaks.
VIEW MORE

Sponsored links