Question about 1993 Pontiac Trans Sport

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Heater fan dead. fan switch 1,2,3,4 dead 5 works

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It may not be the blower, the switch may be bad. it works off of contact, that or a resistor may have gone out. the vehicle is old enough for the switch and also the fan. the cheap way to go about this is to go to the junk yard(please don't laugh), and get another switch. or control unit, that goes in the van. hook the junk yard one up, and try it. it will save you money before buying a new blower motor. try this first, and let me know. hope this helps

Posted on Jan 04, 2011

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This could be caused by either a bad resistor/relay pack or a bad ignition switch.

Posted on Jan 04, 2011

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use a voltmeter, and find out what is wrong, in minutes.
first check voltage to the blower,
on fan high.
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no voltage there, then its not the blower bad. its controls or power feed.
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just a $10 walfart DMM meter, and bam , why is know.
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1 Answer

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ooh that is and oldie....

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1 Answer

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