Blowing hot air when moving but cold air when stop at light

Tiny
T53864
  • MEMBER
  • MERCURY VILLAGER
98 Mercury Villager

It is winter here.
When the car is moving, the air blown is hot.
But, when the car stops at a light, the air blown is getting colder. If the car stops for a while, the air
will eventually be cold like outside.

Does anyone know what the problem would be?

Thanks,
Terry
Do you
have the same problem?
Yes
No
Wednesday, January 31st, 2007 AT 2:45 PM

6 Replies

Tiny
SERVICE WRITER
  • EXPERT
Is your coolant level full?
Was this
answer
helpful?
Yes
No
+1
Wednesday, January 31st, 2007 AT 6:58 PM
Tiny
TLA258
  • MEMBER
Sound like to me that your not circulating coolant, with yoyr engine idleing at oper. Temp feel your inlet to heater core see if it is warm then feel the outlet.
Was this
answer
helpful?
Yes
No
+1
Friday, February 2nd, 2007 AT 7:07 PM
Tiny
CLEAVAGE4U
  • MEMBER
Learn me this there sweethardt,

How com the heat all comes back if the coolant ain't a circulate in when y'all are a moovin?
Was this
answer
helpful?
Yes
No
-1
Friday, February 2nd, 2007 AT 7:16 PM
Tiny
TLA258
  • MEMBER
When you are sitting still you car is at an idle along with water pump as you drive the rpms pick up and your water pump turns faster forceing more coolant around you may have worn impeller in pump or slight blockage in coolant system, worse comes to worse you may have blown head gasket, I just went through this with my car
Was this
answer
helpful?
Yes
No
+1
Friday, February 2nd, 2007 AT 7:23 PM
Tiny
MERLIN2021
  • EXPERT
First off ya did't say what model car this is, but if it's front wheel drive like a sable they are famous for clogged heater cores. Try getting blown out at a radiator shop.
Was this
answer
helpful?
Yes
No
+1
Tuesday, March 6th, 2007 AT 7:33 AM
Tiny
SERVICE WRITER
  • EXPERT
98 Mercury Villager, is what I read.


http://www.2carpros.com/forum/automotive_pictures/30961_ron_copy_1.jpg

Was this
answer
helpful?
Yes
No
-1
Tuesday, March 6th, 2007 AT 5:17 PM

Please login or register to post a reply.

Recommended Guides