Question about 2002 Chevrolet Corvette

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A/c blows out defrost more than vents. this is a 2002 corvette

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6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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  • 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

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  • 104 Answers

SOURCE: astro van 1997

There is a flap in your heater box that is controled by your vent switch by your heater controls. listen for a vacuum leak. that is common and hopfully the problem. there is vacuum lines that control the vent door that redirects the air to your vents.

Has your dash been messed with recently? if so i would check there first. you should hear a hissing if thats the problem.

Otherwise these also are common for that door flap to break and not switch NE more. thats the only 2 things that i can think of off th wtop of my head to be the problem. this would require the whole dash to come apart if its this problem

Michael
ASE certified

Posted on Feb 22, 2009

  • 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

freetek
  • 5568 Answers

SOURCE: Cold Air Not Blowing Through Vents

Your last guess is probably the right one. The deflectors/directors are vacuum controlled and you may have vacuum line either broken or disconnected; these aren't fun to find. I would start under the hood and make sure the vacuum reservoir is intact (have seen them cracked) and then start tracing hoses from there.

Posted on Aug 18, 2009

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  • 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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1 Answer

I have a 1995 Corvette and when I turn the air conditioner on the dashboard vents does not blow cool air


the a/c control is electric for temp control and vacuum for mode control when a leak occurs it defaults to defrost floor .look for a leak or broken vacuum line first then control panel then mode actuator.

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Sounds like the vent selector is not switching it all the way to the vents. Its probally getting stuck on the floor output or defrost. Is it digital are cable driven? Try turning the fan speed to the lowest setting, switch it to defrost, then back to vent and turn the fan back up to hi.

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If you have A/C. When you put the heater on defrost it activates the A/C pump so it will not freeze up from not being used. If you don't care about the pump disconnect the plug that engages the clutch on the pump and use a jumper wire to bridge the plug to itself and your defrost should work

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1998 corvette, A/C blows out the defroster but not out the face vents..


I think you have a vacum problem. Check the vacum hose that, I think starts at the rear of the intake manafold
that hose will pass through the fire wall. Check to be sure
that the hose is not split or BENT stopping the vacumn
from getting to the A/C & Heater system.
Part of the job of that hose is to open & close the vents
air direction.

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1 Answer

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it is your blend door not opening properly.

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1 Answer

Cold Air Not Blowing Through Vents


Your last guess is probably the right one. The deflectors/directors are vacuum controlled and you may have vacuum line either broken or disconnected; these aren't fun to find. I would start under the hood and make sure the vacuum reservoir is intact (have seen them cracked) and then start tracing hoses from there.

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I have the same problem - cannot get air to blow out defroster vents. Any solutions?

Mar 02, 2009 | 2002 Ford Explorer

1 Answer

2001durango vent only blows air through face vent and defroster.


the vent door is broke in the heater control box under dash

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