Question about 2000 Chevrolet Astro
The switch puts the unit on but the air isn't coming out the vents but on a/c max it comes out the defrost by the windshield and it don' t come on when on high at all. The back a/c is starting with the same problem. Where do go to buy the switches?
As for the air only blowing out of the defrost, your problem is not the switch it will be a small vacuum line that runs from the top of the engine directly behind the a/c compressor to vacuum tank located on the passenger side of the engine compartment just to the right and forward of the engine block. It is a small black tube. Once you find the break, a splice connector costs about $.20 at the parts store.
As for the fan not blowing on all speeds. Sounds like a resistor located in the blower motor housing under the hood passenger side. I just replaced mine. Costs about $45 and fixed the problem. Although these do go out with age, sometimes they indicate excessive load from the blower motor itself. If it happens again, look at that.
Posted on Mar 16, 2009
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Posted on Jan 02, 2017
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