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Old 02-05-2013, 05:08 PM   #1
tooslowtahoe
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Default Blower not working


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Previous info blower motor resistor was replaced a few weeks ago and blower worked fine from that point until now. Well got in my truck the other day and the blower wouldn't come on blower was working just a few hours before that. Then today it wouldn't come on I checked fuses all were fine. An hour later the blower start working again. Now it's back not working. Where should I start looking for the problem?? Thanks in advance 99 tahoe
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Old 02-05-2013, 08:52 PM   #2
tooslowtahoe
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think i found the problem melted harness into the back of the ac/heater control unit looks like theres some play in it when moves blower comes on
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Old 02-05-2013, 09:43 PM   #3
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You need a new switch and harness, 1572275 acdelco switch, I cant find an oem part for the harness but there are afermarket available....
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Old 02-13-2013, 07:54 PM   #4
ff256
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Im having a problem with my blower as well.
Everytime I turn it on i have to hit the front of it (under the glove compt.) for it to start.
sometimes it starts on its own but not often.

any ideas? replaced a switch behind the fan knob on the dash last year.
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Old 02-14-2013, 02:17 AM   #5
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FF256, prob need a blower motor... is it noisy?
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Old 02-22-2013, 02:23 AM   #6
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Mine works but is really noisy. Loud! My buddy said put WD 40 around the fan under the dash. Would this help?

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Old 02-22-2013, 01:26 PM   #7
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WD40 on the shaft of the motor will work for a while, but it will get noisy again, dope it with it on, you will have to remove a foam/plastic cover to access the motor.
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Old 02-22-2013, 02:27 PM   #8
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Thanks lesterl
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