HOWTO: Replace the MTC Blower Motor Resistor - Page 4 - JeepForum.com

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post #46 of 57 Old 10-25-2013, 11:08 AM
croth
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2005 WK 
 
Join Date: Mar 2012
Location: Fillmore
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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!


Craig
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post #47 of 57 Old 11-11-2013, 05:20 AM
Sighn
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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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post #48 of 57 Old 12-06-2013, 05:44 PM
98jgc
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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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post #49 of 57 Old 04-05-2014, 01:10 PM
wootenjs
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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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post #50 of 57 Old 07-01-2014, 06:37 PM
bknox0928
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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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post #51 of 57 Old 08-26-2014, 11:32 AM
stark_WK
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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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post #52 of 57 Old 09-04-2014, 11:28 AM
kendog81
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Blower motor

Much thanks!!! (too hot not to have the AC working properly) Time for that cold Beer!!
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post #53 of 57 Old 12-10-2014, 05:51 PM
ladyjen
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Quote:
Originally Posted by jager00 View Post
God write up. I was actually trying to do it the other day but didnt know which screws to take out so I just didnt mess with it lol
God wrote that up? and here I am thinking the dude was only human!
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post #54 of 57 Old 12-11-2014, 01:35 PM
BrooklynWK
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I'm done using aftermarket blower motor resistors and blower motors. Not worth it. I replaced a blower motor because it was making noise after having it for less than a year. Some things are not worth buying aftermarket. Just spend the $$ and get mopar stuff.
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post #55 of 57 Old 12-14-2014, 02:45 PM
Walt
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Quote:
Originally Posted by BrooklynWK View Post
I'm done using aftermarket blower motor resistors and blower motors. Not worth it. I replaced a blower motor because it was making noise after having it for less than a year. Some things are not worth buying aftermarket. Just spend the $$ and get mopar stuff.
Agree with you. There are just certain components that are not worth the few dollars you save when they have to be replaced more frequently. I believe heater blower motors are one of those. Mine start to die after 3.5 to 5 years ( my 4th Grand Cherokee).

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post #56 of 57 Old 12-16-2014, 07:41 PM
00RedWJ
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I replaced my resistor and a few months later the fan stopped working intermittently but would come on with a good whack to the glove compartment box. I found rock auto had the resistor complete,with new harness for $12 (link below). Soldered in the new harness and kept a resistor pack for a spare. Been fine now for a year The old harness was pretty fried, apparently not sufficient gauge wiring.

http://www.rockauto.com/m/mobilecata...&parttype=6557

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post #57 of 57 Old 08-10-2016, 12:21 PM
donp815
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Jeep blower resistor

Very nice description. Have looked for this for 2 years. Paid mechanic to replace resistor twice. 2nd time, still wouldn't work. He did it without removing glovebox. I couldn't figure glovebox out until I read your writeup. I now have the box hanging and am able to reach the plug. Wiggle it up and down and blower runs, but when released, it shuts off again. I can't get the box to come clear out. Have tried all positions and no luck. Mine is 2005 Grand Cherokee Laredo and pix look just like yours. Would be nice to see a pic of the glove box door when it is off. I realize this is an old post and don't expect a reply.

THANKS AGAIN!!! FOR A VERY INFORMATIVE POST!!!
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