I need some help please!

Uwharrie_XJ · 12-29-2004, 08:12 PM

Ok, I have a question for you guys/gals. I sold my XJ last month to buy a TJ and preferably I'd like to find a 4.0. However, today I got a call from a guy who wants to trade his 97 TJ for my beater car (93 Honda). He wants to trade EVEN except the jeep's engine is blown and it's a 2.5L (only 115k on the chassis). I know finding the engine isn't a problem, but I was wondering if I'll be happy with the 2.5L and how much is involved with installing a 4.0???? I've already found a 2.5 tonight. Any info is greatly appreciated.

bbaCJ8 · 12-29-2004, 08:19 PM

The 4.0 will hardly do any worse for mileage, and it gets a ton more power. I'd definitely put that in. Just get the wiring harness with the donor motor and the swap shouldn't be too bad

Uwharrie_XJ · 12-29-2004, 08:33 PM

Will the transmission etc. from the 2.5 bolt to the 4.0 with no mods? thanks.

Gator-XJ87 · 12-29-2004, 09:15 PM

no you will need to swap trannys also the bellhousings are different

Uwharrie_XJ · 12-30-2004, 07:29 PM

Ok guys, sorry to ask so many questions, but I can't find much info concerning this. I will need the 4.0 engine, tranny, and I'm assuming wiring harness and computer. Does anyone know if this is just a plug and play procedure?

wallysheata · 12-30-2004, 07:36 PM

why not just swap in a V8, you can buy complete chevy trucks with vortec 350's, 700r4 tranny's and then adapter your case for pretty close the the price and time it'll take to swap in a 4.0L. Just my thoughts on the subject, but the trade seems pretty fair since a 93 accord is only worth around $3,500 and taht's what TJ's with blown motors seem to be at.

Wally

Bryan's98TJ · 12-30-2004, 07:37 PM

See if you can find a wrecked vehicle and buy it whole this way you will have all the parts you need

JetPilot22 · 12-31-2004, 11:27 AM

I think the computer is plug and play, but like you said, it has to match 4.0 ECM to a 4.0L engine. To my understanding, it "programs" itself based on sensor inputs... [img]graemlins/iono.gif[/img]

iluvjeepchiks · 12-31-2004, 11:34 AM

I'd keep lookin

12-29-2004, 08:19 PM	#2
bbaCJ8 old and boring Join Date: Mar 2003 Location: MI Posts: 29,926	The 4.0 will hardly do any worse for mileage, and it gets a ton more power. I'd definitely put that in. Just get the wiring harness with the donor motor and the swap shouldn't be too bad __________________ Gun control is like trying to reduce drunk driving by making it harder for sober people to own cars.

12-29-2004, 09:15 PM	#4
Gator-XJ87 Trail Guide Join Date: Sep 2002 Location: FT WTH TEXAS Posts: 300	no you will need to swap trannys also the bellhousings are different __________________ 87xj laredo 4.5in lift 31-10.5s rustys HD trac -bar and hd trac-bar bracket courtesy JEEPIN JASON

12-30-2004, 07:36 PM	#6
wallysheata Scatter brain Join Date: Feb 2004 Location: Grand Junction, CO Posts: 1,616	why not just swap in a V8, you can buy complete chevy trucks with vortec 350's, 700r4 tranny's and then adapter your case for pretty close the the price and time it'll take to swap in a 4.0L. Just my thoughts on the subject, but the trade seems pretty fair since a 93 accord is only worth around $3,500 and taht's what TJ's with blown motors seem to be at. Wally __________________ 91 YJ NV4500, Dana 300 4:1/Twin Stick, 35 spline 60's Front/Rear, Detroits, 5.13's, 38.5 SX's & Warn xd9000i <a href="http://community.webshots.com/user/skiersheata" target="_blank">Jeep Pics</a>

12-30-2004, 07:37 PM	#7
Bryan's98TJ Trail Guide Join Date: Aug 2003 Location: Lost...but still looking Posts: 3,694	See if you can find a wrecked vehicle and buy it whole this way you will have all the parts you need __________________ كافر -Infidel

12-31-2004, 11:27 AM	#8
JetPilot22 Trail Guide Join Date: Apr 2004 Location: Florida Posts: 164	I think the computer is plug and play, but like you said, it has to match 4.0 ECM to a 4.0L engine. To my understanding, it "programs" itself based on sensor inputs... [img]graemlins/iono.gif[/img] __________________ '94 XJ<br />Take it on the Rocks

12-29-2004, 08:12 PM	#1
Uwharrie_XJ Newbie Join Date: Oct 2003 Location: Albemarle NC Posts: 10	Ok, I have a question for you guys/gals. I sold my XJ last month to buy a TJ and preferably I'd like to find a 4.0. However, today I got a call from a guy who wants to trade his 97 TJ for my beater car (93 Honda). He wants to trade EVEN except the jeep's engine is blown and it's a 2.5L (only 115k on the chassis). I know finding the engine isn't a problem, but I was wondering if I'll be happy with the 2.5L and how much is involved with installing a 4.0???? I've already found a 2.5 tonight. Any info is greatly appreciated.

12-29-2004, 08:33 PM	#3
Uwharrie_XJ Newbie Join Date: Oct 2003 Location: Albemarle NC Posts: 10	Will the transmission etc. from the 2.5 bolt to the 4.0 with no mods? thanks.

12-30-2004, 07:29 PM	#5
Uwharrie_XJ Newbie Join Date: Oct 2003 Location: Albemarle NC Posts: 10	Ok guys, sorry to ask so many questions, but I can't find much info concerning this. I will need the 4.0 engine, tranny, and I'm assuming wiring harness and computer. Does anyone know if this is just a plug and play procedure?

12-31-2004, 11:34 AM	#9
iluvjeepchiks I care... Join Date: Nov 2003 Location: Indiana Posts: 4,488	I'd keep lookin __________________ 2000xj 33's and stuff Semper Fi Devil Dog!