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Old 04-17-2011, 01:33 AM   #1
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vacum diagram 90 yj with 4.2

Anybody no where to get vacum diagrams 4 a 90 wrangler yj with a 4.2 motor 5speed manual? Thanks

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Old 04-17-2011, 06:56 AM   #2
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buy your self a Chilton Manual the 87-90 vacuum diagrams are the most convoluted hose setups out there. There are at least 14 paths, along with the Vapor and Air lines. It is worth the 20 or so bucks for the book for that and the other stuff in there.

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Old 04-18-2011, 07:43 PM   #3
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if you find anything can you let me know thanks
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Old 04-18-2011, 10:03 PM   #4
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this is the 4x4 one



but it simplifies your vacuum lines so you will have to route lines this exact way which will remove alot of junk.

i have the engine one on the laptop somewhere but i cannot find it currently
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Old 04-19-2011, 01:13 AM   #5
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Here Ya Go!!!!!!
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Old 11-06-2011, 03:05 PM   #6
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vacume for 4.2

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Originally Posted by Undead-89 View Post
buy your self a Chilton Manual the 87-90 vacuum diagrams are the most convoluted hose setups out there. There are at least 14 paths, along with the Vapor and Air lines. It is worth the 20 or so bucks for the book for that and the other stuff in there.
thanks for reply i'll chase the book up.
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Old 11-06-2011, 03:11 PM   #7
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vacume on a 4.2

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thanks i have try,d that drawing but doesent name component below egr valve, i think its a tick-over vacume but mine has three outletts on it.
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Old 09-27-2012, 04:58 PM   #8
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Sam90wj, thanks for asking that vacuum qeustion I have they same year and I just joined the forum. I was going to ask the same question. Do you have any trouble with your front axle going into 4wd?
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Old 09-29-2012, 12:04 PM   #9
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I would try to get your hands on a factory repair manual if possible. I got one off EBay for $50. It helped me out a lot and the diagrams in the factory manual go into a little more detail than the haynes/chilton. If your like me and not to familiar with the spaghetti mess of vac lines on a jeep the factory manual can really be of help. It may cost more but in the end it really helped me out.
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Old 09-29-2012, 02:01 PM   #10
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I am just so glad I got rid of all that stuff!!!!!!!!!!!!!!

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