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1991 Chrysler 5th Avenue Heater Blows Cold Air

Tiny
ROXANNEKIGHT
  • MEMBER
  • 1991 CHRYSLER FIFTH AVENUE
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 112,000 MILES
Heater blows cold air, how do you check to see if the blend door is stuck and or check the heater core to see if it is bad?
Sunday, December 20th, 2009 AT 6:42 PM

3 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Why don't you replace the thermostat for a start and see what happens, at the heater core the hoses should be equally hot, not warm and hot
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Sunday, December 20th, 2009 AT 6:57 PM
Tiny
ROXANNEKIGHT
  • MEMBER
  • 1 POST
The car runs at normal operating temp. It isnt the thermostat
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Sunday, December 20th, 2009 AT 7:59 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
If the thermostat, heater core, coolant level okay-could be the heater control valve if it has one and door problems such as air mix/blend/mode, vacuum and actuator and HVAC control valve.
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Sunday, December 20th, 2009 AT 8:21 PM

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