Blower not working

[tooslowtahoe]

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

 

[tooslowtahoe]

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

 

[lesterl]

You need a new switch and harness, 1572275 acdelco switch, I cant find an oem part for the harness but there are afermarket available....

 

[ff256]

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.

 

[lesterl]

FF256, prob need a blower motor... is it noisy?

 

[junkie4mud]

Mine works but is really noisy. Loud! My buddy said put WD 40 around the fan under the dash. Would this help?

Junkie4mud

 

[lesterl]

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.

 

[junkie4mud]

Thanks lesterl:happy160: