Chevy Heater Blower Motor - JeepForum.com

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post #1 of 63 Old 07-16-2006, 07:12 PM Thread Starter
MuddyMules
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Chevy Heater Blower Motor

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Last edited by MuddyMules; 07-16-2006 at 10:00 PM.
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post #2 of 63 Old 07-16-2006, 07:36 PM
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Doing the same thing this week. Got a Siemans PM102 motor from ABC Auto parts for $22. I almost made the mistake of buying one with the same motor except the shaft was 1/2" longer. Anyone doing this be sure to measure.
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post #3 of 63 Old 07-16-2006, 09:42 PM
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Thumbs up Congrats & Thank You!

That's a great post. Thanks for taking the time and sharing it with us. Looking forward getting it done in mine now....even though it is 100 degrees. Winter will be coming, and nice to know I can get that heat movin' on through the cab.


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post #4 of 63 Old 07-16-2006, 09:57 PM
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I think I only paid about 13-14 bucks when I did mine two or three years ago. Check autozone.

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post #5 of 63 Old 07-16-2006, 09:57 PM Thread Starter
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post #6 of 63 Old 07-16-2006, 10:31 PM
dave_dj1
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how hard is the fan motor to get to? looks like it could be a real pain on my 85 cj7, does the heatbox come out hard?
thanks,
dave
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post #7 of 63 Old 07-16-2006, 10:41 PM
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Quote:
Originally Posted by dave_dj1
how hard is the fan motor to get to? looks like it could be a real pain on my 85 cj7, does the heatbox come out hard?
thanks,
dave
It's not as hard as it looks. There are 4 or 5 bolts under your hood on the firewall that hold it in. After you take those out it's still a pretty tight squeeze to get it out, but it will come out.

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post #8 of 63 Old 07-16-2006, 11:09 PM Thread Starter
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post #9 of 63 Old 07-16-2006, 11:52 PM
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While you have it all apart you might want to consider replacing the heater core.
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post #10 of 63 Old 07-17-2006, 01:36 AM
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Quote:
Originally Posted by tomthbomb
While you have it all apart you might want to consider replacing the heater core.

and while you are at it, clean the squirrel nests out of the vents. i think the PO of my CJ kept it parked in the woods...
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post #11 of 63 Old 07-17-2006, 04:34 AM
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If you take the passenger side seat out, you'll have more room and you'll be grateful for it.

Also, check the fit of the hole after you enlarge it for the blower motor to make sure it fits correctly before you put the blower motor back in the heater assembly.

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post #12 of 63 Old 07-17-2006, 05:18 AM
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I replaced my blower motor with one out of a YJ, I too had to enlarge the opening in the firewall, but now my defroster is like a leaf blower. Now all I need is a larger alternator to power it at full blast.

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post #13 of 63 Old 07-17-2006, 05:22 AM
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The only problem I had was the dual battery tray had to be raised for clearance.
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post #14 of 63 Old 07-17-2006, 07:40 AM
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Does anyone have any pics of the cable routing? I did my YJ tub swap last year and finally replaced the YJ heater for my old CJ one (with blower upgrade) this past weekend. I have the defrost cable hooked up but there is a small triangular bracket/pivot with a cable going into the heater box and I don't know where it bolts to.
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post #15 of 63 Old 07-17-2006, 08:12 AM
weprint
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The Chevy blower motor has a cooling vent hole for the motor while the Jeep motor does not. I assume you must seal this hole to keep water and debris out. Does this cause any problem with the life of the motor? Thanks.
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