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Old Jun 10, 2012 | 11:03 PM
  #1  
Whutdidyousay's Avatar
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From: Hillsboro, OR
Year: 1988
Model: Cherokee
Engine: 4.0
Default PCV stuff

Where can I find a replacement PCV tube or how do I clean it out? Mine dosen't move air either way.... No matter how hard I blow through it. Right now I'm running without it. I'm sure it's helping kill my mpg... Gettin everything fixed one step at a time.
Also the larger vent hole in the VC.... Right now I have a cheepo breather jimmy rigged to it and the air box hole plugged.... Anyone have a better solution?
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Old Jun 11, 2012 | 01:14 AM
  #2  
ZINGGG's Avatar
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From: Seal Beach, CA
Year: 1996
Model: Cherokee
Engine: 4.0 HO Straight Six
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http://www.jeepforum.com/forum/f310/...ite-up-733669/

Read through that. There's also a part number listed for that tube you're talking about
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Old Jun 11, 2012 | 04:43 AM
  #3  
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From: Broward County Fl.
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
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napa sells the whole harness in two seperate pc kits
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Old Jun 11, 2012 | 05:04 AM
  #4  
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From: Rome, GA
Year: 1990
Model: Cherokee
Engine: 4.0
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These don't have a PCV in the traditional sense. After doing some reading, I found the CCV (Crank Case Vent) system components and replaced both vacuum harnesses and the CCV tube which I found on ebay for a reasonable price.

http://www.ebay.com/itm/Dorman-Help-...ff3ff0&vxp=mtr

http://www.ebay.com/itm/Dorman-Help-...ff41c1&vxp=mtr

......and the part you're looking for.....
http://www.ebay.com/itm/Dorman-Help-...ec5b64&vxp=mtr
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Old Jun 11, 2012 | 11:51 AM
  #5  
Whutdidyousay's Avatar
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From: Hillsboro, OR
Year: 1988
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Thanks alot. I did learn about it being a ccv system last night. But I had not found the parts yet.
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Old Jun 11, 2012 | 12:00 PM
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From: Seal Beach, CA
Year: 1996
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Engine: 4.0 HO Straight Six
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Check out the link I posted. There's part numbers listed and you can pick em up at the dealer. I don't think there's anywhere else really that you can get that tube
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Old Jun 11, 2012 | 12:06 PM
  #7  
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From: Hillsboro, OR
Year: 1988
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Yup yup... Parts will be ordered soon. Thanks
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Old Jun 11, 2012 | 02:45 PM
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From: polk county Ga
Year: 1989
Model: Cherokee
Engine: 4.0L
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I was able to clean mine by hanging it up and filling it up with spray carb cleaner and letting it sit, followed by compressed air. Try it first.
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Old Jun 11, 2012 | 02:53 PM
  #9  
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From: Hillsboro, OR
Year: 1988
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Will do... I was thinking something along those lines, but didn't know if carb cleaner would weaken or melt the plastic.
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Old Jun 11, 2012 | 03:08 PM
  #10  
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From: Austin
Year: 1987
Model: Wagoneer
Engine: 4.0
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here are the 3 NAPA part numbers that give you all the parts you need:
P/N: 715-1365, 715-1366, 715-1367

I've also got the install on my build thread.
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Old Jun 11, 2012 | 03:16 PM
  #11  
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Originally Posted by 1996sportXJ
http://www.jeepforum.com/forum/f310/...ite-up-733669/

Read through that. There's also a part number listed for that tube you're talking about
That's for the system on an HO motor. The RENIX valve cover / ccv system is different and has different parts.
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Old Jun 11, 2012 | 03:26 PM
  #12  
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From: Seal Beach, CA
Year: 1996
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Engine: 4.0 HO Straight Six
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Originally Posted by letinsh

That's for the system on an HO motor. The RENIX valve cover / ccv system is different and has different parts.
Well let it be a lesson that the OP lets everyone know the specs (year, motor, etc) when posting. Otherwise us folks who use the app just have to assume.

So yeah, didn't know you had a Renix. You can ignore that link I posted
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Old Jun 11, 2012 | 06:30 PM
  #13  
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From: Hillsboro, OR
Year: 1988
Model: Cherokee
Engine: 4.0
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Ahh, crap!... I know better!
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Old Jun 11, 2012 | 06:32 PM
  #14  
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From: polk county Ga
Year: 1989
Model: Cherokee
Engine: 4.0L
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It didn't hurt my line at all. I let it sit for 2 min. and all kinds of carbon and oil came out with the air. I used audozone brand with the V-8 w/ the chrome air cleaner on the can. The valuecraft brand carb cleaner is kerosene or something cause it takes DAYS to dry. The good stuff is like .50 more a can. If it doesn't burn your nose, It's no good. BTW brake cleaner WILL melt some plastics.
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Old Jun 11, 2012 | 06:35 PM
  #15  
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From: Hillsboro, OR
Year: 1988
Model: Cherokee
Engine: 4.0
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Thanks, I'll grab some the next time I'm in town
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