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Old 03-07-2013, 03:29 PM   #1
ReVibe's Avatar
Join Date: Dec 2012
Posts: 2
Unhappy New to jeeps and the forum. Help? (yj)

I recently got a 1990 YJ (still carbureted) and I'm having some serious issues.
I'm pretty sure i have some vacuum leaks, it doesn't seem to drop into the passing gear when going up ANY sort of incline, which in turn seems to make it stall out.

Like i already stated, I'm completely new to working on cars and could REALLY use any help at all. It seems to have the inline 6 with a carter BBD, and when i got it i found hoses not connected, out ports for hoses that are just capped of and lines that are kinked between some coil.

Yes i realize this post is extremely vague, but please just bear with me.

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Old 03-07-2013, 03:46 PM   #2
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Join Date: Oct 2012
Location: Waterloo, IA
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It could be the carb and/or vaccum issues. The carter usually begins to fail after 20 or so years, Read into the MC2100/2150 carb swap, you ditch alot of the vacum lines when you do it so it might be worth considering.

4.0 power tech>32RH>231j>4:10>35" MT's
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Old 03-07-2013, 04:19 PM   #3
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Join Date: Dec 2012
Posts: 2
Well that's good to know. I'll definitely look into it. It seems to be that every where i look everyone just replaces them immediately. I'll keep updating as I work.
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jeep yj , power issue , vacuum issue

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