2004 Dodge Intrepid heater blows cold air

Tiny
MAH1964
  • MEMBER
  • 2004 DODGE INTREPID
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 153,000 MILES
Heater blows cold air when car is stop/idle position, but blows hot air when car is at normal speed.
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Sunday, January 11th, 2009 AT 6:48 PM

3 Replies

Tiny
RASMATAZ
  • MEMBER
Check the coolant level/thermostat and water pump operation
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Sunday, January 11th, 2009 AT 8:16 PM
Tiny
MAH1964
  • MEMBER
I have checked the coolant, was a little low. How do you check the water pump operation? The car is not running hot.
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Monday, January 12th, 2009 AT 2:43 AM
Tiny
RASMATAZ
  • MEMBER
One way to test for a bad water pump is to squeeze the upper radiator hose when the engine is hot and idling. Careful, because the hose will be HOT! If you do not feel much coolant circulating through the hose when you rev the engine, the pump may be bad. The other cause might be a bad thermostat that is not opening properly (remove and inspect the thermostat), or a clogged radiator.
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Monday, January 12th, 2009 AT 4:45 PM

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