SPONSORED LINKS

Heater Blows Cold ALL THE TIME SINCE YESTERDAY.

Tiny
BLUMONSTER
  • MEMBER
  • 1994 GEO PRIZM
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 151,000 MILES
Heater started blowing cold only since yesterday. Coolant temp. Gauge indicates temp. Just a tad below mid level. Coolant level is OK. Fan seems not to work at the time I started the car and checked after 15 mins of idling.I do not know if that is the way it is or not.

The hoses to the heater control valve get warm after a while but not hot to the touch maybe since it is 15-20 degrees F now. But starting just before reaching the heater control valve the hose gets cold.

All of a sudden I lost heat on my car, it blows cold only even after driving an hour.

What might the problem be and how to solve it?

Thanks.
SPONSORED LINKS
Monday, December 13th, 2010 AT 2:55 AM

3 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check and test the thermostat-heater core if its clogged and the air blend door if its in the heat position
Was this
answer
helpful?
Yes
No
Monday, December 13th, 2010 AT 2:58 AM
Tiny
BLUMONSTER
  • MEMBER
  • 46 POSTS
Thanks for answering, rasmataz.
Heater control valve was the problem, replaced it and heat is back on, thank God.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Thursday, December 16th, 2010 AT 12:51 AM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Thanks for coming back with the fix, it'll help the others in need-Happy Holidays
Was this
answer
helpful?
Yes
No
Thursday, December 16th, 2010 AT 1:26 AM

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