1991 Chrysler 5th Avenue Heater Blows Cold Air

1991 CHRYSLER FIFTH AVENUE
112,000 MILES • 6 CYL • FWD • AUTOMATIC
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ROXANNEKIGHT
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  • 1 POST
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?
Dec 20, 2009 at 6:42 PM
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RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
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
Dec 20, 2009 at 6:57 PM
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ROXANNEKIGHT
  • MEMBER
  • 1 POST
The car runs at normal operating temp. It isnt the thermostat
Dec 20, 2009 at 7:59 PM
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RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
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.
Dec 20, 2009 at 8:21 PM
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