vacuum lines
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Junior Member
Joined: Sep 2012
Posts: 45
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From: Arkansas
Year: 1994
Model: Cherokee
Engine: 4.0l
vacuum lines
Anyone have a diagram of where the vacuum lines should go on a 94 jeep cherokee xj 4.0l? Ive been rebuilding this jeep and i dont think i have the vacuum lines right, it idles, but it is randomly a low or high idle and when you rev, it wants to die when you let off the gas
Member
Joined: May 2009
Posts: 247
Likes: 2
From: Northern Illinois
Year: 1997
Model: Cherokee
Engine: 4.0L
Yep, start by cleaning your Idle Air Controller first. I tried cleaning mine but had to end up replacing it...settled down the idle issues. Also, clean your throttle body bore and plate with a soft toothbrush and TB cleaner (both side of the plate). After you do both of those, then look at your vacuum routing.
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