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Unread 07-15-2010, 11:00 AM   #1
Registered User
1987 MJ Comanche 
Join Date: Feb 2010
Location: Norway
Posts: 2
TJ engine swap

I have a friend with a 97 TJ 2.5 and a manual.

And i have a 93 zj 4.0 engine with AW4 trans without the wiring harness in my garage that we really wont to put in his Tj.

But I need some help!! What is the best way to get it to work in the TJ?

I have thought about buying a wiring harness from a TJ with 4.0 and auto trans, but wil i work? Isn't the sensors different from 93 to 97 4.0?

And we live in Norway, so there are not a lot of TJ's with 4.0 around. The junkyards do not have that many Jeeps like you in the states. Specialy TJ's and 4.0 engines.

MJPeder is offline   Reply With Quote Quick reply to this message
Unread 07-15-2010, 11:34 AM   #2
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2003 TJ Wrangler 
Join Date: May 2009
Location: The Republic of Dave
Posts: 6,408
You're going to need a lot of auxiliary parts. Wiring harness and PCM, exhaust, fan and shroud, motor mounts, bellhousing (if you swap the tranny), etc, etc, etc...

There are a lot of threads on the 2.5 to 4.0 swaps. Take a brief look through them.
If it's worth doing, then it's worth [I]over[/I]doing.

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Sundowner is offline   Reply With Quote Quick reply to this message

engine swap , zj , grand cherokee , tj , wrangler , 4.0 , 2.5 , aw4 , transmission , wiriing harness , sensor , help , advice

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