1994-2004 V-6 3.8 and 3.9L V6 Mustangs

vacuum lines and heater and airconditioner control

Old Sep 12, 2010 | 04:50 PM
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Question vacuum lines and heater and airconditioner control

my heat and air when on and running will switch from vent to defrost at will..wat is causing this?
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Old Sep 12, 2010 | 06:32 PM
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It could be the switch in the dash. I know the 98 Explorer my family had when I was younger had a problem similar to this. My Dad had to take the dash apart to get to the switch to fix it.
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Old Sep 13, 2010 | 04:38 PM
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thnks..so your saying the switch needs replacing or jst cleaned?
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