1993 Ford Aerostar not blowing out heat

Tiny
SMK121
  • MEMBER
  • 1993 FORD AEROSTAR
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 103,000 MILES
My a/c is working fine blows out plenty of cold air from the vents. My problem is that when I change the knob to red for heat no heat comes out. Also when I change the knob to defrost my front window no air comes out of that cold or hot, any suggestions?
Saturday, July 18th, 2009 AT 4:31 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,617 POSTS
First, locate the heater hoses under the hood. With the engine hot and the heater on high, make sure they are both hot. Let me know what you find.

THe vents, on the other hand, are run by vacuum. Check for leaks under the dash.
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Thursday, August 6th, 2009 AT 11:09 PM

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