Question about 1994 Chevrolet S-10 Blazer

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Vacuum hose diagram got a hose running down by motot mount not hooked up and cant get air to blow out of vents just blows on floor and defrost

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  • sillybeef Sep 04, 2008

    I have the same problem, My 2004 Suburban only blows air (cold or hot) out the floor vent of the defrost vents but it wiil not change to blow out the face vents, even though the the control unit indicates that the setting is for face vents.

    Did you get yours fixed yet? The dealer tells me it will cost $250 + to fix it.

    Thanks,

    Bill

  • Anonymous Mar 16, 2014

    I changed trans mount bushing; had to remove some vacuum lines to get my hands down in there to remove bolts for mount arm,got it all back together & I have one vacuum hose left that I can't find where it goes.

  • Anonymous Mar 27, 2014

    ineed vacuum hose diagram on a thermo jet carb mounted on 440

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I had this problem with my '93 Ford Probe. What happened was the shaft coming out of the vacuum solenoid was onnected to a plastic arm for the valve that rotated for where you want the air to go. This plastic arm was broken over the years of constant use so I make a small metal one.

Posted on Nov 21, 2008

When the air only blows out of the floor and defrost regardless of the selected route, it is defaulting. It means there is a problem. Most likely a vacuum leak. I have a 97 S10 that this happened to. I replaced a few vacuum hoses under the hood..One of which was not connected to anything, nor could I figure out where it was suppose to be connected, so I just plugged it..Added a little freon, and the air works wonderfully. Hope this helps..

Posted on Sep 20, 2008

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