Noisy, vibrating blower motor or - JeepForum.com
 
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post #1 of 9 Old 08-15-2019, 07:26 PM Thread Starter
ZJJeepers1972
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Noisy, vibrating blower motor or

Hi guys

My 96 ZJ's ac/heat blower started making a loud roaring noise 4 days ago. Its vibrating terrible also...

Can one/couple of you guys give me some insight on this, what to expect please?

Can someone point me in the direction to find a post/topic on this like replacing it?

Thank you guys

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post #2 of 9 Old 08-15-2019, 09:36 PM
StPaul59
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Motors shot. It could last for months the way it is now. If it seizes up, just smack it and it should come back to life. When you replace the motor, take a picture of where all the fuses and relays go as you will have to pull a few to slide the motor out.. When you have the motor out, stick a vacuum on the evap and suck as much crud out of there as you can.
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post #3 of 9 Old 08-15-2019, 10:00 PM
KiloWatts
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1996 ZJ 
 
Join Date: Aug 2013
Location: Philadelphia
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Unscrew the side panel next to the passenger floorboard. Remove the spinny disc thing that holds the fuse panel cover on. Take a photo of the fuses. Remove 3 or 4 from the top (or just proceed, you'll discover which you need to remove). There are 3 bolts holding the blower motor in place, I believe 11mm. Twist yourself into a pretzel and unscrew them. Remove the rubber air hose and then replace everything.

1996 4.0 L6 RWD
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post #4 of 9 Old 08-16-2019, 09:06 AM Thread Starter
ZJJeepers1972
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Thank you guys so much!!
Youre awesome...
I have a spare 98 ZJ limited. Will the blower out of it fit in this 96?
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post #5 of 9 Old 08-16-2019, 07:50 PM
StPaul59
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Don't see why it wouldn't..
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post #6 of 9 Old 08-17-2019, 03:45 PM Thread Starter
ZJJeepers1972
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Thank you all for your help.
Im going to have to get around to it before winter because i will definitely need heat this winter. Its still blowing as of now and it will be getting cooler soon and i can work on it without sweating my butt off.
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post #7 of 9 Old 08-17-2019, 07:25 PM
StPaul59
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Remember if you're in a pinch and it quits, just like any motor - fuel pump, starter, rad fan, just whack it good and it will start working temporarily.
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post #8 of 9 Old 08-18-2019, 06:21 PM Thread Starter
ZJJeepers1972
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Ok guys i switched out the motor a few minutes ago. The original went completely out.
Ok so i took the one out of the 97. It fits and is quiet but it will only run on hi. The one that just went out would run on lo to hi but i noticed today i could smell a burning smell right before this one completely died.
The one out of the 97 worked on lo to high.

Thank you guys
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post #9 of 9 Old 08-21-2019, 03:39 PM Thread Starter
ZJJeepers1972
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Ok guys, i think i found the problem. I pulled the knob off the fan speed control. The stem the knob slides over is busted so it seems. If you grasp the end of it you can actually move it side to side, up and down. Basically like the speaker control on the stock Jeep radio. I know this is not right. So im going to take the unit out of my other spare jeep and install in this daily driver.
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