Question about 2002 Chevrolet Avalanche
Fan start making a sqeeling niose right before it stopped working on settings 1, 2, 3, 4 and now will only work on high
If your Chevy is equipped like most vehicles, the speed control is accomplished by a stepped or tapped resistor that has now failed. This may be located on the fire wall under the hood or near the blower assembly under the dash. When these resistors go 'open' inside, it will only affect the lower speeds since the fastest speed bypasses the resistor completely. Can't say how hard yours is to access but the part is pretty itself is cheap, guess that's why they fail so often.
Posted on Feb 19, 2009
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