HOWTO: Replace the MTC Blower Motor Resistor - Page 4 - JeepForum.com
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Go Back JeepForum.com > Models > Jeep Grand Cherokee & Commander Forums > WK Grand Cherokee & XK Commander Forum > HOWTO: Replace the MTC Blower Motor Resistor

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Unread 10-25-2013, 11:08 AM   #46
croth
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2005 WK 
 
Join Date: Mar 2012
Location: Fillmore, New York
Posts: 150
I have replaced the resistor pack on my '05 at least three times. The last one lasted about three weeks. Soooo, I figured the blower motor was drawing too much power and changed that out, (it was squeaking anyway). Two days later, driving along, suddenly start seeing smoke coming out from under the dash!! Turned the fan off and it went away!! Got home, got under the dash, tried the fan...... nothing but high speed again.

Tried to pull the plug off the resistor pack, couldn't get it off! It welded itself right to the resistor pack.

I did get it off the resistor pack, completely melted the two outside connectors, wires were burnt an inch up from the connector.

The new harness has much larger wires than the original did.

Oh well, live and learn!

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Unread 11-11-2013, 05:20 AM   #47
Sighn
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Join Date: Nov 2013
Location: Surrey, BC
Posts: 1
mouse?

Quote:
Originally Posted by LifeOnABoard View Post
This just helped me get a mouse out of blower. Oh my beejesus it stank! To drop the motor just take off the shield below the glove box and then take the 6 torx screws out of the bottom of the motor. Then pull down!

Now I get to eat dinner then go clean out the blood.
I found one in my blower too. Now to find out how it got in, and screen off the entrance!
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Unread 12-06-2013, 05:44 PM   #48
98jgc
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2005 WK 
 
Join Date: May 2006
Location: Oneonta, NY
Posts: 472
Just did mine, great and super easy to follow write up, I found it easier to cross hands when manipulating the bump stop things right for left , left for right. It felt more natural. Anyway one of the wire blue/grayish colored wire look was a little burned up looking, as was the connector on that single outermost pin. I plugged it in and it worked fine. I'll probably need to do the upgraded harness soon. Part was 8.00 on ebay shipped, so if I need another mehh who cares. And yes this job is 10 minutes tops - Don't be afraid it is a 1/10 in difficulty.
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Unread 04-05-2014, 01:10 PM   #49
wootenjs
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Join Date: Mar 2014
Location: Dallas, TX
Posts: 3
I have the reverse of this, plenty of air on lowest and intermediate settings, but nothing on highest setting. Could it still be resistor?
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Unread 07-01-2014, 06:37 PM   #50
bknox0928
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Join Date: Jul 2014
Location: Ooltewah, TN
Posts: 1
Help! :)

I found this post to be SO helpful, very easy to DIY with all the pictures. Any ideas on what else could cause the same thing? My AC would only work on full blast in my 2005 Grand Cherokee. We replaced the blower motor resistor but it didn't fix the problem, any suggestions on what to try next would be greatly appreciated!
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Unread 08-26-2014, 11:32 AM   #51
stark_WK
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2005 WK 
 
Join Date: Dec 2013
Location: Morgantown, WV
Posts: 5
Quote:
Originally Posted by bknox0928 View Post
I found this post to be SO helpful, very easy to DIY with all the pictures. Any ideas on what else could cause the same thing? My AC would only work on full blast in my 2005 Grand Cherokee. We replaced the blower motor resistor but it didn't fix the problem, any suggestions on what to try next would be greatly appreciated!
I have had this problem for a year and I thought it was the knob that controls the AC!!! I wish I had seen this post sooner!

Swapped out old resistor, put in new one. Everything works fine... except the backlight to the information panel and shift panel don't light up.. I think I read somewhere it's actually a faulty switch in the headlight switch assembly on the steering wheel.


I had difficulty removing the connector to the blower motor resistor, and when it finally came loose, I noticed both end terminals look black (burnt, melted).


bknox, I would guess it might be a faulty contact on in the knob that controls the AC?
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Unread 09-04-2014, 11:28 AM   #52
kendog81
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Join Date: Sep 2014
Location: South Berwick, Maine
Posts: 1
Blower motor

Much thanks!!! (too hot not to have the AC working properly) Time for that cold Beer!!
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