Mechanics

GRAND WITH NO HEATING

2003 Mercury Marquis • V8 2WD Automatic • 70,000 miles

I have a 2003 Grand Marquis that is blowing air but will not get hot. I've checked the thermostat, anti freeze, and fuses. From what I gather there is a blend door valve that is prone to going bad and is coincidentally expensive to replace. Where is it and can I force it manually without replacing it?
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Pinkbunnymr
November 26, 2010.




Check the heater control valve and the heater core-if okay then deal with the air blend door/vacuum and actuator

Tiny
Rasmataz
Nov 26, 2010.


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