1990 4.2 Motorcraft 2100 carb vacuum lines - Jeep Wrangler Forum

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Old 01-31-2013, 11:18 PM
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Question 1990 4.2 Motorcraft 2100 carb vacuum lines

Ok guys Ive researched alot now and I got kinda tired reading off many posts, hopefully you guys can help ne out

I have a 1990 4.2 5spd YJ with a Motorcraft 2100, thats how I bought it a year ago.

Today I bought some tubes to connect them from the transfer switch to vacuum actuator and manifold, I based my connections on some diagrams, I replaced the transfer vacuum switch and cleaned the actuator and fork... I dont know where to connect the red vacuum line which goes to the manifold, the carb is different than the other carbs that Ive seen on pics. So I need help with this. Also my green and yellow lines that I have connected to the actuator dont have any vacuum when I check them on 2wd and 4wd L or H.... I suppose my actuator and fork are just fine...

Like I said my lines were broken off and I never knew how they were suppose to be connected and I really WANT to fix the vacuum, I dont want the posi lock thing..

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Old 02-01-2013, 08:31 AM   #2
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I know this is from another site, but it has your typical vacuum diagram on it.

Frequently Asked Questions (FAQ) Your Answers Are Usually Here! - JeepForum.com

its a ways down, but a basic drawing.
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