Question about 2000 Chevrolet Blazer

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Chevrolet blazer 2000 4.3 automatic trans

My heater fan doesn't work at position "1", only from position "2" to "4", and other trouble dosn't work the heater, only works A/C. My problem is similar. Mine works and actually blows heat on position 1 and 2 but blows cool air on 3 and 4. the blower also doesn't always blow where it is supposed to. It has trouble switching to defrost. Have you fixed this problem on yours?

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It could be the problem of the switch which contyrols this functions any of the wire is getting short or been cut somewhere in between .if everthing seems perfect in the switch then its due to the ballast resistor so try changing the ballast resistor located on the blower housing. thanks.

Posted on Nov 22, 2008

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Check out the control switch for this problem.

Posted on Nov 22, 2008

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