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#1
05-26-2007, 12:47 AM
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94 s10 ac/heater controls
i just purchased a very well maintained 94 4x4 blazer. I tried the a/c controls to make sure it works and it worked great. However, now i hear a hissing sound coming from the control panel. The hiss goes away when the selector is in max a/c or bi level a/c. Anyone know what this could be before i tear apart the dash?
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#2
05-26-2007, 12:10 PM
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Re: 94 s10 ac/heater controls
Welcome to AF
Usually a Vacuum leak. Peak under there an see if you can spot a vacuum leak. May be just a hose off. Good Luck MT
__________________
Remember proper testing gives us the answer to many problems. MT
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