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Blown 2.5L. motor. I need help. #790692 02/19/07 10:35 AM
Today I spent my third day in my (new to me)"95"Jeep Wrangler driving in the dunes.I know it's only a 4 cyl. motor ,but the dunes here in Oregon keep calling me to JUMP them, and I did.......until the engine started making a horrible knocking sound and lost all strength to jump or drive anymore. My question is do I replace the motor with a rebuilt 2.5L. or can I put a 4.0L.in its place without having to replace other parts? Any advice will help, Thanx

From the Off-Road World
Re: Blown 2.5L. motor. I need help. #790693 02/19/07 05:33 PM
Joined: Dec 2001
Posts: 11,727
LRJ4x4 Offline
Web Wheeler
Try the jeep section of the board, just go to main index and look for Jeep Tech <img src="/forums/images/graemlins/cheers.gif" alt="" />

Did you say jump <img src="/forums/images/graemlins/smile.gif" alt="" />

[Linked Image]

98 Montero with cold weather package
96 Toyota Land Cruiser, fully locked Mall Machine :-)
Re: Blown 2.5L. motor. I need help. #790694 02/20/07 02:53 AM
Joined: Oct 2003
Posts: 7,768
BigJim Offline
Web Wheeler
BEFORE you go nuts with this get under it and look at the oil pan!!! You just might have pushed the front axel into the oil pan and the crank is beating on it!
I bought a 89 real cheap once that had that going on...
Big JIm <img src="/forums/images/graemlins/pfft.gif" alt="" />

professional bovine relocation specialist
Re: Blown 2.5L. motor. I need help. #790695 02/20/07 05:09 AM
Joined: Aug 2006
Posts: 45
josephelk Offline
Getting the Wheeling Fever
If you decide to go with the 4.0 you will need to replace not only the engine but the transmission, wiring harness, and the list goes on. I think you might be able to reuse your gas tank and fuel pump because you started out with a fuel injected engine. I did a 4.0 swap in my 89YJ that had the 4.2 carbureted engine and it wasn't that difficult. I just found myself a $600.00 wrecked XJ and pretty much used everything from it (except for the fuel tank and sending unit that I found at a local junk yard). If you do decide to do the swap you will be really happy with extra HP gain with the 4.0. I think youíre still an OBDI with the 1995 or earlier? Iím sure someone will correct me if itís not. Try this website for some info also. http://www.cjoffroad.com/forums/topic.asp?TOPIC_ID=6408&SearchTerms=The,big,secret,is,out,-,wiring,OBDI

Good luck

89 YJ, 3.5" Black Diamond Lift, 33" tires, 8000lb Warn, 4.0 91 XY engine swap.
Re: Blown 2.5L. motor. I need help. [Re: josephelk] #790696 02/21/07 04:59 PM
Joined: Jul 2006
Posts: 278
cjensen Offline
To OP:

Have u tried trouble shooting and diagnosing what the heck the problem is? Have you checked compression? Did u run it out of fluids (i.e. oil, anti, etc..)? What is the matter with the original?

C. <img src="/forums/images/graemlins/confused.gif" alt="" /> <img src="/forums/images/graemlins/confused.gif" alt="" /> <img src="/forums/images/graemlins/lol.gif" alt="" />

Re: Blown 2.5L. motor. I need help. [Re: cjensen] #790697 02/21/07 05:07 PM
Joined: Feb 2005
Posts: 89
Wing_Nut_OOA Offline
Getting the Wheeling Fever
hey there....

didnt i give you a card at the top of spinreel?

have fun!

i've got a couple slideshows from our trip.

drop me a line if you'd like to see them.

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