Question about 1991 Ford Tempo 4 Door

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I have a 1991 tempo and the vents on das h don't work defroster and heat to floor work great but not the vents

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All the vents are connected, a vacuum controlled flap diverts the air to each area.

With that said I would say that either the vents are obstructed by something like a rat/mouse nest or that your vacuum controlled flap is stuck or does not have enough vacuum to move it.

A vacuum leak will sound like a constant hissing sound.

Posted on May 04, 2010

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