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Blower motor intermittently works

17 messages,  Last post on Aug 26, 2009 at 9:02 PM

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What is this discussion about? Chevrolet Blazer, GMC Jimmy, SUV

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#15 of 17 Heater blower / rear defogger/ automatic temp. control by chgoblazer Jan 21, 2008 (8:15 pm)
My rear defogger and blower motor would not work. It was a intermitten problem. I removed the controls on the dash. That is one unit and is a printed circuit. For some reason when I removed and probed the connector in the back, it made a connection and started working. Not sure what happend , but it nows works. \There severals items to check, 1st the fuses. If good run a hot directly to the blower motor , to check if that is good. The plug with 2-3 wires.  Then check the connection behind the controls behind the dash, which has to be removed, not as hard as it looks. total of six screws. The whole assembly pops off after the screws are removed.Don't forget a the five screws under the dash on both sides of the steering column. If those connection are good (orange always hot) Check the resistor for hot , it is attached to the blower motor under the hood. the resistor send current to the blower . Recap Fuses Control under radio , behind the switches ( fan,temp, vents) Resistor. Blower
#16 of 17 RADIO AND BLOW WONT TURN ON by vpettitt Jan 25, 2008 (6:07 pm)
My freind was pulling plug wires passenger side and I was trying to get dash off to get to radio and fan/blower switch cause neither one of em turned on I had key in and turned to on and was about to put screw driver to work ............radio came on but no blower ?? Yeah I'am good ....lol   I DIDENT DO ANYTHING TO IT I swear............ The Jimmy germlin ?? My freind was surprized I finshed my part quick Iam sitting there screw driver in hand looking like ?????????? what the?? Yeah me and my tools Anyway what can I look for and any and all help is needed.New here and this is MY first Jimmy.Thanks Vernon
#17 of 17 Re: Blower motor intermitently works [johnnybo] by bpetite Aug 26, 2009 (9:02 pm)
Replying to: johnnybo (May 19, 2007 8:09 am) Check out the middle relay on fire wall under hood mine has quit severals times and i just tap it and the motor starts blowing agan.  i have not replace the relay yet but need to

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