LT1-LT4 Modifications 1993-97 Gen II Small Block V8

A/C & Heater Controls.....

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Old Jun 17, 2007 | 04:43 PM
  #1  
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Default A/C & Heater Controls.....

Well finally got a battery on the car today for the first time in months since owning it and getting wiring put together. It seems just about everything works as it should so far.

Only issue I am having now is that the A/C & Heater controls on the dash work but it will air will only come out of the foot area no matter where you turn the selector.

Any ideas why it won't adjust to the vents or the defroster?

Mike
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Old Jun 17, 2007 | 04:50 PM
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same thing here look under the hood and almost right by the pcm you should see this little black piece that has 3 different routings. there are three different hoses that plug into the black piece. Mine was cracked. Still haven't found a new one.
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Old Jun 17, 2007 | 06:11 PM
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Sounds like the Vacuum in the Interior is not working. Usually when it goes into default mode, the feet and the Defrost are supposed to work..
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Old Jun 17, 2007 | 07:42 PM
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yep vacuum problem
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Old Jun 17, 2007 | 09:02 PM
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Yeah looked for a vacuum line off or one that is cracked.
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