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Re: 94 ST Blazer Problem W/ Air not blowing out of vents.
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Originally Posted by jtipp
I have a 94 ST Blazer 4x4. The AC and Heat both work fine but they will only blow air out of the defrost vents and the bottom vents on the floor. No matter what I select on the control panel it always comes out of these two areas. Any ideas on how to get the air to come out of my main level vents? Thanks.
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Check the vacum port on the rear of the intake..right rear side near the distibutor.
This port supplies the vacum for your outlet doors and if there is a leak, the doors will default.
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