Question about 1998 Toyota Tercel

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Front defrost wont work in my 92 4runner

My floor vents and my front vents work fine, but when i switch to defrost i get nothing. my defrost/floor option, the floor vents still work, but the defrost has nothing. is this a cable operated system? do i need to take the whole dash off to get in there?


thanx

-kris-

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  • 92 Answers

Yes it is cable operated and something is probably disconnected. Remove your glove box so you can get a better look at whats going on.

Posted on Sep 20, 2009

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Posted on Jan 02, 2017

  • 20 Answers

SOURCE: Heat wont blow through heater or defroster vents

common problem, check under dash by the gas pedal if control arms are muving went selecting from ac to heat cuz this it is the control for the vents to go from ac to heat and to defrost.

Posted on Feb 23, 2009

  • 2 Answers

SOURCE: dash vents not working

I hate to question your intelligence, but are the vents open with the knob below them?

Posted on Jul 07, 2008

  • 37 Answers

SOURCE: Heat wont blow through heater or defroster vents

The door in the heater box is most likely stuck. It is located under the dash on the passenger side

Posted on Dec 06, 2008

  • 37 Answers

SOURCE: PROBLEM WHEN SELECTING THE DIRECTION FOR THE AIR

Sounds like you have a supply vacuum problem. When you lose supply vacuum to the control head it defaults to defrost.

Posted on Mar 13, 2009

  • 432 Answers

SOURCE: All Air Conditioning blows our the defrost vents

Some thing you could look at would be this. The control is usually fed by a vacuum line or small hose thats is connected to your intake manifold.
With a cold engine,look for a skinny vacuum hose that runs from the intake toward the fire wall . It should be going inside the cab and connecting to the A/C vent control.Some times the hose becomes disconnected or splits or cracks due to heat under the hood.
Thats usually the trouble.
I hope this helps you.

Posted on Oct 06, 2009

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