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5.2 ZJ A/C issues. What I found was interesting....

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Old Jun 20, 2016 | 07:00 AM
  #1  
xjkj92's Avatar
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From: Upstate, SC
Year: 1989
Model: Cherokee
Engine: 4.0L
Default 5.2 ZJ A/C issues. What I found was interesting....

So my A/C wasn't working, as in, only the defrost and floor vents worked. Found out that the vacuum hose that passes through the firewall and T's off was broken. No biggie. So I pulled the dash and replaced it(PITA by yourself).

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Finish and put the dash back in place, hook all the electrical back up so I can test everything before I bolt it back down and well.....it's STILL only blowing through defrost and floor.

Pull dash back out.

Get to looking around when I realize....

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The actuator to open that center vent is gone. Just literally gone. I didn't remove it and the screw (if you look above the yellow vacuum line) has a plastic tab that was broken off on it. How that happens, I'm not sure.

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Rigged it up with some 550 cord (I'll appropriately fix this winter when SC cools down) and YAY AC!


Figured I'd just post this as a "Hey! It's unlikely but check to make sure you even have all the components!" in case anyone else was/is having the same issues.
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Old Jun 21, 2016 | 09:14 AM
  #2  
wingless's Avatar
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Year: 1994
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Engine: 5.2L Magnum V8 220hp 285ft-lbs
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Going out on a limb, you're American correct? Fix it either w/ a hammer, WD-40, duct tape or a bungie cord.

Very clever!

Removing the dash sucks lemons through a garden hose. Doing it twice, wow!
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Old Jun 21, 2016 | 09:56 AM
  #3  
xjkj92's Avatar
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From: Upstate, SC
Year: 1989
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Originally Posted by wingless
Going out on a limb, you're American correct? Fix it either w/ a hammer, WD-40, duct tape or a bungie cord.

Very clever!

Removing the dash sucks lemons through a garden hose. Doing it twice, wow!
Haha sure am! It's just too hot and humid here in South Carolina to be working in this heat!
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Old Jun 21, 2016 | 10:18 AM
  #4  
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From: Manlius, east of Syracuse, NY
Year: 2000 XJ Sport & WJ Laredo
Model: Grand Cherokee (WJ)
Engine: 4.0L
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Now THAT'S a use for paracord I never thought of! You should have wired a choke control cable to it, then you wouldn't have to rip the dash out again!
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Old Jun 21, 2016 | 11:47 AM
  #5  
xjkj92's Avatar
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From: Upstate, SC
Year: 1989
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Originally Posted by dave1123
Now THAT'S a use for paracord I never thought of! You should have wired a choke control cable to it, then you wouldn't have to rip the dash out again!
I used what was available to me
Luckily though, I can reach it from under the dash so if the paracord doesn't hold up I can rig something else up to open it without reaching up under there.
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Old Jun 21, 2016 | 10:12 PM
  #6  
94zj318's Avatar
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From: Baltimore
Year: 2002
Model: Grand Cherokee
Engine: 4.0L (AMC) Straight Six
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I had that issue in my old '94 5.2L ZJ... if I still had it I'd fix the issue using your method.
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