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89 Cowl Intake Vacuum Lines

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Old Dec 25, 2021 | 01:10 AM
  #1  
Christiantrout's Avatar
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Year: 1989
Model: Cherokee (XJ)
Engine: 4.0
Default 89 Cowl Intake Vacuum Lines

Hi all new here. I have searched for a bit and can’t seem to come up with anything specific on this. I’d like to install a cowl intake on my 89 Cherokee but am unsure what vacuum lines can be deleted and what need to be hooked up. Is there anyone that has done it on these pre 91 cherokees? How did you hook up the vacuum lines to the intake tube? Any pics or info would be appreciated. Thanks in advance!
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Old Dec 25, 2021 | 01:43 AM
  #2  
DustyWagoneer's Avatar
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From: Under the Jeep
Year: 1993
Model: Cherokee (XJ)
Engine: 2.9 Stroker 4cyl
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Originally Posted by Christiantrout
Hi all new here. I have searched for a bit and can’t seem to come up with anything specific on this. I’d like to install a cowl intake on my 89 Cherokee but am unsure what vacuum lines can be deleted and what need to be hooked up. Is there anyone that has done it on these pre 91 cherokees? How did you hook up the vacuum lines to the intake tube? Any pics or info would be appreciated. Thanks in advance!
Where are you in the states, as that will have an impact on what needs to be done??
I am in Komiefornicationa, and EVERYTHING needs to be done by the book.

Here is what I did for now. Once I get through emissions testing I will have a bung welded on closer to he filter for these connections. Right now on my 4 cyl. hey are smack dab in the way of my oil fill cap.

One line is for the charcoal vapor canister, and the other is for the pcv line.
I taped the nipple to accept a -6AN fitting


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Old Dec 25, 2021 | 01:49 AM
  #3  
Christiantrout's Avatar
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Year: 1989
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Originally Posted by DustyWagoneer
Where are you in the states, as that will have an impact on what needs to be done??
I am in Komiefornicationa, and EVERYTHING needs to be done by the book.

Here is what I did for now. Once I get through emissions testing I will have a bung welded on closer to he filter for these connections. Right now on my 4 cyl. hey are smack dab in the way of my oil fill cap.

One line is for the charcoal vapor canister, and the other is for the pcv line.
I taped the nipple to accept a -6AN fitting

I’m in Reno, Nevada so I can get away with a little more than you. My main concern was any of the vac lines going to the egr or anything important and making sure those are connected. I know there are a couple (or just one) that can go away for sure.

That looks clean! Nice work
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Old Dec 25, 2021 | 12:01 PM
  #4  
4.3L XJ's Avatar
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From: Chico, CA
Year: 1986
Model: Cherokee
Engine: 4.3L with headers and full 3" exhaust system
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Originally Posted by DustyWagoneer
Where are you in the states, as that will have an impact on what needs to be done??
I am in Komiefornicationa, and EVERYTHING needs to be done by the book
What part of Commiefornia are you at? Chico in NorCal here
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