Question about 1999 Chevrolet Blazer

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1998 chevy blazer

Fan blower only works in 1 2 and 3 positions.. #4 position inop... blower motor and switch assy already changed to no avail....

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  • yadayada
    yadayada May 11, 2010

    Have you changed the blower motor speed controller? if not that is most likely the problem.

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It is clearly the resistor so copy and paste the page below and it shows you what you need to do.............................easy fix and $20 https://www.youtube.com/watch?v=Gz_88VvQVGU

Posted on Sep 12, 2015

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Check the fuse box under the hood and look for a burnt fuse (30A mini)
mine had the same problem and I check the fuses, found one that was blown,replaced fuse, now I have #4 position working

Posted on Jan 17, 2009

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  • Master
  • 507 Answers

Fan blower resistor. Under hood near blower motor. Follow the power that goes to blower back to resistor, there should be several wires on it. That's the most LIKELY source of your problems.

Posted on Sep 07, 2008

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6181190.jpg

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  2. Apply a bead of sealer to the blower mounting flange. Position the blower so that the marks are aligned and install the screws.
  3. Attach the electrical connection at the motor.
  4. Connect the negative battery terminal.

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