Question about 1992 Mercury Cougar

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Just got heater core replaced and now have no heat from heater or defrost. Fans work, just don't blow anything beyond "cool". The heat in my car is coming and going. I want to know how to fix this? How do I change my thermostat and where is it located? It only blows some hot air when I have it turned on to the vent button but when I have it on defrost or the floor it blows cold air. Can someone help me please?

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It sounds like when they replaced your heater core, that they didn't properly hook up the blend door contros at the control panel. I would take it back to the repair shop that did the work and have them go back over things again just to make sure.

Posted on Dec 04, 2008

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To troubleshoot this types of problem,click the link below :----http://howtobyme.blogspot.in/2012/02/heater-blows-only-from-defrost.html
--------Go through the procedure to confirm the issue.

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Engine Overheats and heater blowing cold?

http://howtobyme.blogspot.com/2011/11/engine-overheats-and-heater-blowing.html

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http://schematicsdiagram.blogspot.com/2011/12/heat-blows-cold-on-drivers-side-and-hot.html

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This will help.Thanks.

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