Very important question..i need heat - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 12-22-2004, 06:12 PM   #1
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Default Very important question..i need heat

I live in michigan and we are supposed to be dumped with snow tonight but my blower motor is having a proplem of some kind (it quit working today of all days). The question is can i directly hook a toggle switch to the purple leat with the full 12 volts from the battery untill i have more time to resolve the problem or does it require a lesser voltage. Thanks.
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Old 12-22-2004, 06:29 PM   #2
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Applying +12v from the battery will make the blower run on HI all the time the switch is on. This assumes that the blower motor isn't seized or shorted. I guess it wouldn't be bad for a temporary solution but I'd get it fixed soon.

I'd suggest the use of a relay though and make sure it is a fused source from the battery.
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Old 12-22-2004, 06:35 PM   #3
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i gotta go to the car parts store in a little while anyways to get the stuff to do it. its only temporary i gotta work at 6 in the moring while its still supposed to be snowing. i just dont want to drive a half hour with a frozen windsheild.
Thanks for your reply

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Old 12-22-2004, 10:07 PM   #4
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If you have the automatic climate control, 80% of the time the blower stops it is a failed bower module. If that is so, pulling the connector in the duct that goes to the blower motor and applying 12 v will turn the blower on.
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Old 12-23-2004, 02:38 AM   #5
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i also have the same problem, but mine works 50% of the time, i turned th car on time #1, the blower ran fine, #2, didn't run but kicked on about 15 minutes later, #3 it ran, you get the point. my question is, what'* my problem if eraser'* module went, what'* ym explanation? help please, it sucks driving with the windows open.
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Old 12-23-2004, 09:56 AM   #6
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Module seems to fail either permanently on (runs battery down fast) or off. Sometimes working sounds like a bad connection or a loose blower wheel (that will usualy screech).
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Old 12-23-2004, 12:13 PM   #7
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well there'* no screech, but the SES light came on about an hour before the blower problem, i have yet to get to the mechanic to read the problem because i'm snowed in, would the light have anything to do with it?
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Old 12-23-2004, 12:24 PM   #8
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The ses light has nothing to do with the blower motor, thats a seperate issue.
Check the connections and grounds, often an intermitent electrical problem can be traced back to a poor ground or open in the wiring.
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Old 12-23-2004, 12:37 PM   #9
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If you rap on the blower motor and it comes on its a dead spot in the armature and it needs to be replaced.
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Old 12-25-2004, 01:52 AM   #10
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this is going to require ripping the dash apart in the dead of winter isn't it?
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