Question about 2003 Lincoln Navigator

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Lincoln navigator front heater cool

My wife drives an 01 navigator, and i noticed last night that the front heat ducts blow lukewarm to cool air, while the rear heater blows nice HOT air. Can anyone tell me how to troubleshoot this. I suspect a sticking tepm valve or air door, but dont really know how the system works.
Thanks

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  • Anonymous Mar 15, 2014

    4wd 92 escudo heats up n blows coolant bak to res n took a litre n a half.

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This is caused by the main cabin temp blend door actuator motor, in order to replace it or even check it the dash must be pulled out.

Posted on Dec 15, 2008

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