Vents will not switch. '04 WJ stuck on defrost. - JeepForum.com
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Unread 05-18-2009, 02:55 PM   #1
zj+3
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Vents will not switch. '04 WJ stuck on defrost.

Whenever I turn the knob to switch the vents (from defrost to head and feet, feet, ect.) nothing happens. It just stays on defrost. Hot, cold, AC all work, I just cannot get the vents to put air out though the middle, and it is starting to get hot, so I need that AC blasting!

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Unread 05-18-2009, 02:56 PM   #2
iluvtruenos
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Didn't we just answer this a few days ago?

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Unread 05-18-2009, 05:38 PM   #3
dmarko3
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i just had that problem. does the cruise control not work too. on mine one of the vacume lines came off the engine. and it still comes off like once a week
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Unread 05-18-2009, 05:51 PM   #4
Airbird
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LOL i just came on here to ask just about the same question. My havoc vents only work for the windshield vent. Switching the vent to the different positions doesn't work. Is it a fuse?
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Unread 05-18-2009, 05:56 PM   #5
ratmonkey
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if you don't have the automatic climate control it's a vacuum line that's leaking. the line goes around the firewall to the cruise control and under the batt tray is where it terminates. it can have a leak anywhere along that length and you will loose cruise control and hvac function other than defrost.
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Unread 05-18-2009, 06:00 PM   #6
Airbird
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Quote:
Originally Posted by dmarko3 View Post
i just had that problem. does the cruise control not work too. on mine one of the vacume lines came off the engine. and it still comes off like once a week
Wow thats really weird.. your right and it seems that we all have 2004 WJ's

Heres some pictures its right under the intake



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Unread 05-18-2009, 06:52 PM   #7
YJMCBoy
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Quote:
Originally Posted by Airbird View Post
My havoc vents only work for the windshield.

LOL that made my night, thank you
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Unread 05-18-2009, 07:00 PM   #8
dmarko3
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Quote:
Originally Posted by Airbird View Post
Wow thats really weird.. your right and it seems that we all have 2004 WJ's

Heres some pictures its right under the intake




that's the same thing that keeps happening to mine. i keep putting it on and it keeps coming off
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Unread 05-18-2009, 07:25 PM   #9
Airbird
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LOL that made my night, thank you
Bah! HVAC* glad i made your night though.
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Unread 06-28-2009, 07:22 PM   #10
jcloudr
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But my cruis stll works....

I have a 2002 and the cruise is working, but all of the air comes out the defrost and floor... I can not make it change. I have looked for leaks and can't find any.
I NEED HELP !
Thanks!
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Unread 06-28-2009, 08:21 PM   #11
sparkeep
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Quote:
Originally Posted by dmarko3 View Post
that's the same thing that keeps happening to mine. i keep putting it on and it keeps coming off
Ever heard of zipties? Just put one around the hose to tighten it on the stub.
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Unread 06-29-2009, 07:51 PM   #12
salissc
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Thanks for the posts, found my 2004 Grand Cherokee had the vacuum hose disconnected under the manifold.
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Unread 06-30-2009, 03:36 PM   #13
tazimafied
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It's not just the '04. Mine had the same thing happen.
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Unread 06-30-2009, 03:56 PM   #14
grandcherokee12
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My '99 has done it once, but now that I know what it is, never seems to give me a problem.
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Unread 06-30-2009, 07:43 PM   #15
allanmacaulay
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So if all of mine are connected there....where should I look next? I've followed the lines and they all seem to be fine
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