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Old 05-13-2021, 12:55 AM   #1
Data
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Default 2007 outlook xr front heater/ac blower motor

Hello everyone. I did a search but did not find the ideas.

I have a 2007 outlook XR 200,000 miles. Bought it in February.

The front blower motor just simply died two days ago. I pulled down the panel under the glove box and saw it was the original motor. I checked for voltage at the motor plug, it has 12 volts, on high. So I ordered a new blower. But I noticed with the car OFF I still get 12 volts ! This don't sound right to me. Is it normal? or should i hunt for the resister and check that?

Any ideas please let me know.

Thank You
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Old 05-13-2021, 02:06 AM   #2
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Default Re: 2007 outlook xr front heater/ac blower motor

If you're willing to crawl around under the dash or remove the glove box for access to the blower motor then you can test the 12v line. Just connect a dvm with ground connecting to the plug ground, not nearby chassis ground. Some circuits switch 12v while other circuits switch ground. With blower motors drawing a moderate amount of current, some ground connections overheat and leave discolored insulation at connections on either end. The same may occur with 12v power. It's presumed you measured 12v to nearby chassis ground and may miss an overheated, damaged ground connection. Using a 12v bulb is another way to test the two wire connection.

As you may or may not know, blower speeds are controlled either by a resistor card or solid state variable resistance unit. Resistor cards tend to burn out one or more resistors leaving high speed the only speed as this is a direct connection to 12v power. I have the solid state device that blew its thermal fuse.
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Old 05-13-2021, 11:31 PM   #3
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Default Re: 2007 outlook xr front heater/ac blower motor

Well I want to head and I checked the ground the ground was good I set the digital voltmeter to 20 K the ohms were good. So I again put the negative lead on the black wire positive lead on the purple wire. Turn the car on blower motor at full speed I got my 12 V, turned off the heater air conditioning switch completely still got 12 V. So I went ahead and just replace that blower motor, and works fine. But still makes no sense Why the circuit is getting 12 V with the car off. Even the place where I bought it so that doesnít make any sense. So itís got to be something weird with Saturn.
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