Jim Angelos (205.188.117.68) - Fri Oct 24 16:33:54 2008

Hi if anyone can help me with this problem, I give my thanks. On the motor (fan) speed is on high or off. The other is the control for the defroster, floor, middle.It's stuck on defrost. I would like to see a diagram on each of these control.

I have a 2005 Jeep Wrangler, with 6cyl..

Reply #1 misti (63.97.115.10) - Sun Oct 26 18:57:42 2008

I found that under hood very center is a small tube that

can come off and that makes all the air only come out of defrost

vents. I put it back on and used a small zip tie to keep it on.

I also have the 2005 Jeep Wrangler Unlimited w/ 6cyl...

hope this helps

Reply #2 Rex (70.165.17.107) - Mon Nov 3 17:06:14 2008

2005 Jeep Wrangler. The fan motor for either the heat or air conditioning is STUCK such that all air comes through the defroster vents below the windsheild. How do I correct the problem???

Thanks

Reply #3 Steve (63.167.255.155) - Wed Nov 26 08:00:28 2008

You have a vacuum line leak, or the line itself is disconnected. The leak can be in the diaphram, but it is most likely a dried/cracked line under the hood. If I remember correct, the lines run along the firewall to the left fender area. The shop fixed mine ('02 TJ), but when they showed me the problem, I could've noticed and repaired it myself.

BTW, mine was doing both the problems listed above: fan on either high/low; or the air was only coming out of the defrost/floor. The vacuum lines are controlled by the switches and they get too weak to move the switches/diaphram.

Reply #4 Bill Haney (72.29.43.98) - Sun Dec 21 14:31:26 2008

2006 Jeep Wrangler blowing cold air from heater. Have changed thermostat, and heater hoses feel hot, but not getting fluids to heater core or that is what I assume. Please help with any ideas. Thank s Bill

Reply #5 Marty Douglas (72.77.2.71) - Mon Jan 19 20:18:27 2009

I have a '95 Wrangler. I have had a chronic problem with water leaking in through the hood vent. I finally concluded that the air vent doors are not being closed properly, related to a lack of vacuum. I replaced a cracked hose under the hood, to no avail. I believe that it is the vacuum switch on the heater control assembly. Has anyone had similar problems?

Reply #6 pat mcadam (97.125.142.36) - Wed Feb 4 16:53:48 2009

I have a problem with my blower moter switch (high med low).I own a 99 jeep wrangler . I have had to replaice the switch 3 or 4 times in the past three years. It will work fine for a while then goes out. Any sugustions. ITS A JEEP THING YOU WOULDNT UNDERSTANS.

Reply #7 C H (216.151.25.109) - Wed Feb 4 17:43:53 2009

I have a 2000 Wrangler. My fan only blows on low. As soon as I move it to med or high it stops blowing...except for natural flow from driving. On low it will blow hot or cool, temp is adjustable, it just shuts off when moved to any other speed. I've heard this is a common issues recently. Any help would be amazing. I am trying to avoid the overpricing that is Portland.

Reply #8 J.A (119.12.35.47) - Sat Mar 7 20:19:57 2009

Hey guys, can anyone help with an a.c problem? A few days ago the switch that regulates the vents on my 2003 wrangler sport stopped working (I couldn't switch the vents around and was only getting air through the windscreen demister)The fan was working fine. The next morning I checked the relays and fuses which seemed fine and when I tried the a.c again the fan stopped working as well? Could the switches themselves be faulty or is there something I'm missing somewhere? Has anybody had a similar problem? Your advise would be greatly appreciated...

Reply #9 gary sheets (65.24.67.64) - Wed Apr 22 20:17:56 2009

I have a 2004 jeep the crouse control light comes on but thats it dont work allso the heater will only blow out defrost turn the knob and it still stays on defrost try checking the vicuim lines uder the battery. i replaced them didnt help, HELP

Reply #10 earyck (174.100.56.103) - Thu May 7 16:07:38 2009

#8 & #9 see reply #3

It's on the driver side of the engine just put the hose back on and use a ziptie to hold it on.

fan not working check for a

bad blower resister Passanger side under or in glove box. black box type thing, $15 bucks to replace. Well see?

Reply #11 Trevor (76.64.16.30) - Sat May 16 13:21:47 2009

I have a problem where there is no air coming from the defroster. What could the problem possibly be?

Reply #12 mimi (68.210.42.147) - Mon Jun 1 17:22:10 2009

I just wanted to say - THANK YOU! so much to misti - you saved me $50 from running a diagnostic check & possibly more $ if they were not honest - thank you, thank you, thank you

Reply #1 misti (63.97.115.10) - Sun Oct 26 18:57:42 2008

I found that under hood very center is a small tube that

can come off and that makes all the air only come out of defrost

vents. I put it back on and used a small zip tie to keep it on.

I also have the 2005 Jeep Wrangler Unlimited w/ 6cyl...

hope this helps

Reply #13 rick (129.33.49.251) - Fri Jun 19 15:04:55 2009

1997 Wrangler A/C all of a sudden strated blowing hot air (even when outside temp is in the low 60s). It neve went from cold to less cold, then warm...right from working to hot. Any ideas on what to check? Thanks

Reply #14 Jim Tapp (74.222.75.104) - Sun Jun 28 13:56:32 2009

I have just brought a 2005 Jeep wrangler unlimited, every time it rains heavy there are puddles on the floor on driver side and pasenger side, the seats and facia are dry, where is the water coming in from?

Reply #15 frankiez (76.176.136.82) - Thu Jul 9 15:57:02 2009

how in the heck did you get the black tube center under hood onto the white acceptor near the engine- it is way down there and my hand wont fit- ouch.

Reply #16 Steve, NJ (67.84.234.70) - Wed Jul 15 21:40:30 2009

Hi, I have a 97 Jeep wrangler TJ and the vent only will blow out hot air, not warm, hot, Hot, HOT. I could really use some fresh air because my soft top door is safety pinned shut because the zipper broke. I love this jeep. Please Help

Reply #17 tony (68.0.174.103) - Sun Jul 19 19:20:26 2009

Thanks to all that shared info on the vac lines, it helped me fix a problem that has been cooking my brain here in AZ (literally). Mine is an 02 wrangler X, following the vac line that T's off into 2 vac lines near the battery, the one that goes down ends up by the passenger side wheel, get underneath and you can see about a 3 inch rubber hose that connects it to a plastic housing, mine was split at this connection. Trim off 1/2 inch and it works like new.

Reply #18 Ron Troutner (71.202.255.74) - Sun Jul 26 23:45:50 2009

Just wanted to thank-you all for the tek-tip about the loose vacume line & air only coming out of the defroster vent. I had this exact problem & I was able to quickly discover the problem thanks to your info. I just had to put the vacume line back on the connector it dropped off from. I have a 2003 Jeep wrangler rubicon.

Reply #19 Jane Jones (74.138.184.168) - Thu Aug 6 08:35:12 2009

Thanks for the tip on connecting the black tube, I have an 05' Wrangler and it worked! Yeah, now if I could just figure out how to fix the control for the fan. It only comes on when it is on high. Any tips or hints? I would greatly appreciate it! And you guys are great!

Reply #20 Dennis DeLong (140.32.168.2) - Wed Aug 19 15:53:51 2009

My 05 Jeep Wrangler Sport was blowing air out thru defoster vents even if I changed vent selector to front vents. Found small vacum line disconnected from engine.

Reply #21 Ian (71.70.236.166) - Wed Aug 19 18:18:30 2009

Just wanted to thank everyone for their help with my 05 Wrangler Rocky Mt! My A/C was stuck on defrost and would not switch. There was a small vacum hose that was disconnected from the engine. It was a simple fix and only took me 2 minutes. This site saved me time and $ from going to the shop! Thanks again!

Reply #22 Mike Renfro (70.245.158.255) - Wed Sep 2 21:00:39 2009

I have a 2000 Wrangler. My fan only blows on low. As soon as I move it to med or high it stops blowing...except for natural flow from driving. On low it will blow hot or cool, temp is adjustable, it just shuts off when moved to any other speed.

Anybody have a fix for this

Reply #23 jim (98.67.127.143) - Fri Sep 4 19:48:33 2009

My 2004 Jeep wrangler x vent control knob is loose and won't change the air flow in the vents any suggestions would be helpful.

Reply #24 Steve (71.195.138.63) - Sat Sep 12 18:47:48 2009

Have a 05 Unlimited that is blowing air only either thru the defroster or floor vents. I have read the answers about the vacume line and it was connected. At least I think I found the right line. However, problem isn't solved. Any other ideas you could share??

Reply #25 05 wrangler (74.101.139.21) - Tue Oct 6 19:13:47 2009

thanks for the advise on the 05 wrangler it only blew on windsheild and floor at same time never seperate. vac hose off of manifold put hose back on .put on zip tie. works great thanks

Reply #26 Tom- Mpls (75.72.47.191) - Thu Oct 15 18:45:55 2009

I have an issue with uneven heat between all the ducts. There is heat when stationary. The thermostat and heating core seem to be producing enough heat. All seems fine until I start driving. Once I reach higher speeds, all I get is tepidly warm to cold air out of every setting. Only the center right vent pushes warm air. It seems like the fresh air mix is stuck. Even after coming to a stop and idling for 15 minutes with a hot engine, the vents still push cold air out of every vent but the center right. I spent three hours at the dealership with no luck or answers. I have a 2008 Wrangler Unlimited Rubicon. I suggested Vacuum lines... he just looked at me blankly. Any help would be greatly appreciated!

Winter is coming to Minnesota. I have to get this fixed soon!

Reply #27 Jdog (76.79.19.166) - Tue Oct 20 16:02:10 2009

In response to the fan settings problem, it is probably your blower motor resistor. It is hidden behind a plastic covering below the passenger glove box. Take out the screw and red clip, and pull out. It may be hard, but it will come. Replace that, and it should work. This problem is very common, and 99% of the time it is the resistor. That's why it will either run on high or not at all, because the high setting needs no resistance, and all the other settings use resistance to slow the motor down for each setting. You can get this part from the factory, or most auto parts stores carry them. Hope it helps.

Reply #28 LMazza (63.119.174.170) - Wed Oct 21 12:09:07 2009

At first I had the problem of the ac and heater stuck on defrost position a month later no heat and still stuck on the defrost postion...any ideas...i have an 05 wrangler sport

Reply #29 wes mitchell (67.49.217.117) - Wed Oct 28 18:07:33 2009

had the same problem with my 2005 jeep wrangler unlimited blowing air through the defroster and thought I would lokk it up and it was just as the replies said. Fixed it so easy. Thanks, your site is very helpful.

Reply #30 ezmoney (71.53.193.152) - Thu Nov 5 16:32:02 2009

I have a 2002 jeep wrangler, the heat is not working I put a new thermastat in it, and now I don't know what else to do, need some help please and thx.

Reply #31 skennedy (164.156.30.53) - Fri Nov 6 09:54:27 2009

I have a 2002 Jeep Wrangler. I'm having issues with controlling the amount of air coming through my vents. It will only come out on high or very low. Need some help on how to fix...suggestions?

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