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Old 01-09-2013, 01:28 PM   #1
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Blower motor questions

Hey everyone,
My blower is currently working on high setting only. I did some research and ended up buying a new selector switch and blower motor and blower motor resister. My question now is do I need to add all the relays as suggested in some of the blower motor repair threads. Or is the new lower draw Blower motor enough to ensure it does not heat up and melt again?
Any help would be appreciated!

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Old 01-09-2013, 01:31 PM   #2
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If your blower is working on high only, it's should be just the resistor only. Why are you replacing the switch and blower?

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Old 01-09-2013, 01:50 PM   #3
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I was under the impression that the original blower motor was rated for more current than the resistor causing the resister to fail. I just wanted to fix the cause of the problem and make it so I did not have to keep fighting it.
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Old 01-09-2013, 02:00 PM   #4
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The switch was probably overkill but it was cheap so I will probably just change it anyway when I put my new kenwood in.
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Old 01-09-2013, 02:02 PM   #5
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I would check the amp draw if that is your concern but seems overkill unless it blows again. I guess you can replace all 3 to ease your mind.
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Old 01-09-2013, 03:20 PM   #6
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I have replaced the resistor and the blower motor switch and my heater is still only blowing on high. What would be my next step?
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Old 01-18-2013, 09:10 PM   #7
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mine only works on the two highest
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Old 01-19-2013, 03:36 AM   #8
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I had same prob with my 04 LJ, only worked on high. Ordered a Mopar blower motor resistor from amazon. Installed myself, took about 20 min total because of the tight space behind the glove box. It worked like new. There's a how to video on YouTube. Also, not sure if I had to, but I disconnected battery during installation as I always do when messing with the electrical components. Otherwise small possibility u could damage the new equipment, blow a fuse, or fry something else, which will then really confuse you and lead you to a whole lot of trouble shooting.
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Old 01-19-2013, 04:27 AM   #9
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think so,disconnected battery during installation as do when messing with the electrical components

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