Fan blower motor (FYI)

Mudder · **Posted:** Tue Oct 06, 2009 6:37 pm

Just want to let people on here know that if your fan only runs on high or only runs on low then you need to replace the fan relay. It is located behind your glove box. 2- 8mm screws. Stealership part is $27 and some change. 15 min job.

Just an FYI. Dealer said they replace alot of 'em

phluffhead · **Posted:** Tue Oct 06, 2009 8:04 pm

replaced mine 2 days after i bought it.let me tell you, even for short time...the heat produced on high in the libby is insane!!!!

rt_power · **Posted:** Tue Oct 06, 2009 8:35 pm

I think what your refering to is not the relay but heater resistor block. It varries the voltage to the fan motor which it what creats the four fan speeds and they are a VERY common to fail

TAHOE · **Posted:** Wed Oct 07, 2009 12:21 pm

need to take ours in, now low speed... still under warranty too

Jeepjeepster · **Posted:** Wed Oct 07, 2009 8:19 pm

phluffhead wrote:

replaced mine 2 days after i bought it.let me tell you, even for short time...the heat produced on high in the libby is insane!!!!

All the more reason to make speed #4 a vent and do away with it.

ChiroKJ · **Posted:** Thu Oct 08, 2009 4:45 pm

Quote:

All the more reason to make speed #4 a vent and do away with it. Smile

has anyone done this?

Jeepjeepster · **Posted:** Thu Oct 08, 2009 5:53 pm

ChiroKJ wrote:

Quote:

All the more reason to make speed #4 a vent and do away with it. Smile

has anyone done this?

Well of course. I wouldnt of said it if I hadn't done it.

http://www.jeepkj.com/forum/showthread.php?t=26491

tomsjeep · **Posted:** Fri Oct 09, 2009 9:16 am

Blower motor resistor fails on TJs a lot. I'm not surprised it would fail on KJ/KKs too. Since I've not owned a YJ or the older Cherokees I can't say about them... it's a part that happily cooks itself into oblivion regularly.
I keep trying to diagram out a way to replace the whole thing using 12v computer fans, but I'm not that smart.

sleeve84028 · **Posted:** Fri Oct 09, 2009 9:26 am

Tips:

Lost KJs, Search, [input Blower Motor Resistor], search

review the threads for tips...

This one includes pictures: HVAC Blower Motor Failure

Litterly it is a 10 minute repair and a 15 minute "find the correct tool" job.

W9JAB · **Joined:** Sun Jul 12, 2009 11:50 am **Posts:** 54

should you hear/feel the fan on low?

Jeepjeepster · **Posted:** Fri Oct 09, 2009 4:46 pm

W9JAB wrote:

should you hear/feel the fan on low?

umm, well, yeah. It should be blowing air.

W9JAB · **Joined:** Sun Jul 12, 2009 11:50 am **Posts:** 54

Very instering, I guess I have that problem too but I do like to have the fan off, and not running all the time :lol:

I'll just leave it be for now.

rt_power · **Posted:** Sat Oct 10, 2009 8:46 am

that is one thing that has never impressed me about the KJ. even on the lowest setting, it still blows enough to be anoying

Jeepjeepster · **Posted:** Sat Oct 10, 2009 2:25 pm

rt_power wrote:

that is one thing that has never impressed me about the KJ. even on the lowest setting, it still blows enough to be anoying

If its blowing too much air on low why cant you turn it off? If its still too cool on #1 I just turn it off. In the winter I just adjust the temp but I dont like doing that with the A/C on. Either I need it as cold as it goes or the windows are down.

W9JAB wrote:

:oops: Very instering, I guess I have that problem too but I do like to have the fan off, and not running all the time :lol:

I'll just leave it be for now.

Just be careful with that. If you have the A/C on with no air blowing over the coils the pressure will go up and kick the high pressure side off. Best to keep air moving with the A/C on. Its perfectly ok to use that as a vent when your driving down the road though. Thats what I do with #4 since I unhooked that speed. I just make sure to not use the A/C on that speed. I travel on the highway 90% of my mileage so I hardly ever use the fan, just he vent.

Kugellager · **Posted:** Thu Oct 22, 2009 3:54 pm

phluffhead wrote:

replaced mine 2 days after i bought it.let me tell you, even for short time...the heat produced on high in the libby is insane!!!!

Yeah - Enough to crack your windshield if it is really cold outside! :roll:

];')

Fan blower motor (FYI)

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