Mechanics

MODELS NO AIR FLOW FROM VENTS

1988 Ford Other

Heater problem
1988 Other Ford Models V8 Two Wheel Drive Automatic 135, 00 miles

My heater blower works but I do not have any air flow from the vents. How can I trouble shoot this?
Thank you
David
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Dclay15
November 17, 2009.



Go under the dash and by the heater yu should see a cople of vacuum motors. Try moving the arm on one or the other while the blower is going and se if it changes the vents from defrost to heater or dash. That is the one thatisn't working. It will eithe not hve vacuum going to it or just stuck as they do that sometimes. If it's notgetting vacuum then it may be the control unit that is bad or no vacuum going to the control unit.

Hmac300
Dec 26, 2009.