The heat in my 2001 mercury grand marquis wont work , I just put a new blower motor on and a new thermostat, fuses are good relays are good but it wont do anything, defrost works ok but thats it.


Asked by Mar 01, 2015 at 03:44 PM about the 2001 Mercury Grand Marquis LS

Question type: Car Customization

Heat wont work.

1 Answer

Tom Harmon

Vacuum controlled Mixer vent is not opening to hot air With the engine running .. change from floor to defrost or from defrost to normal .... you should hear the vents. next move the temp control and you should hear something under the dash ... make sure the linkage is connected

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