The heat in my 2001 Mountaineer wont blow...just makes a horrible "clunking" sound, yet A/C works fine...???

Asked by queenwarrior69 Oct 20, 2015 at 04:14 PM about the Mercury Mountaineer

Question type: Maintenance & Repair

1 Answer

65,520

Sounds like the blend door that switches from heat to A.C is sticking or something is keeping it from closing all the way in the heating mode.

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