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Old 03-05-2012, 11:42 PM   #1
Join Date: Feb 2012
Posts: 8
Need some help vacuum motor actuated midshaft axle

Ok guys I have a question,

My 88 Wrangler has the vacuum motor actuated midshaft axle and I seem to have some plastic vacuum lines burnt into by exhaust. I have the A904 Automatic tranny and the funny thing is there are 4 lines coming out of the vacuum motor actuater that run into the engine compartment where 2 of the lines are connected to a vacuum reservoir under the battery. two of the lines appear to run down to the tranny. However where it is burnt into there are four plastic lines coming from somewhere along to top side of the tranny. Can anyone shed some pics/light on this for me showing me how all these vacuum lines are supposed to go?

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Old 03-05-2012, 11:53 PM   #2
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Join Date: Feb 2012
Location: San Marcos, CA
Posts: 185
Partner, I feel for you. I bought a 89 YJ with a bunch of suspension mods in January. I knew after the test drive that something was wrong with the carborator and ignition. I bought it but it took a very good mechanic three weeks to trace, replace and correct the vacuum lines. if you do not have much experience with this system you are going to need a good manuel or outside help. Good luck.

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Old 03-06-2012, 12:03 AM   #3
Join Date: Feb 2012
Posts: 8
I have replaced and traced most vacuum lines already and consider my self pretty good with the diags but the problem is the jeep has had the motor rebuilt by one of those shade tree mechanics and I already have had to make many corrections. However I would love to see some pics of the vacuum lines how they are configured on someone elses 88 or 89. I have purchased alldata for my year jeep but the diags are not to revealing for this particular item. Thanks for the reply !
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