86 cj7 258 inline to a automatic 4.0. - JeepForum.com
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Unread 08-28-2013, 09:00 PM   #1
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1986 CJ7 
Join Date: Nov 2008
Location: colquitt
Posts: 10
86 cj7 258 inline to a automatic 4.0.

In search of as much information on changing my 86 cj7 258 inline automatic to a 4.0 in line motor fuel injected. Need all the technical information involved installing this newer motor. I understand that this is a common change over. Information greatly appreciated. Thanks James

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Unread 08-29-2013, 06:15 AM   #2
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1992 XJ Cherokee 
Join Date: Oct 2012
Location: umatilla, florida
Posts: 1,961
You'll need the wiring harness, the ecm, the sensors, tcm from the donor vehicle.
I've never dine this particular swap. Most of my experience is with the Cherokees.
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