SPONSORED LINKS

Heater will blow cold air and sometimes it warms.

Tiny
ANONYMOUS
  • MEMBER
  • 2003 PONTIAC MONTANA
  • 150,000 MILES
Heater will blow cold air and sometimes it warms up, but mostly cold, what could be problem
Saturday, November 10th, 2012 AT 7:49 PM

2 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Make sure hoses are both hot on heater when engine warm. Then you'll hav eto check actuator in heater box. Pic is of actuator but it shold be scanned to see what is wrong
Image (Click to make bigger)
Thumb
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Monday, July 10th, 2017 AT 6:30 PM
Tiny
JOHNVIALLET
  • MEMBER
  • 1 POST
I think your water pump is needing replacement as this was the problem same problem that I had
Was this
answer
helpful?
Yes
No
Monday, July 10th, 2017 AT 6:30 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