I need some direction on where to go with my 1989 Wrangler "project".
I have an 89 Jeep wrangler that originally came with a 2.5. That engine gave up it's ghost about 70,000+ miles ago and I've since had a 4.0 from a wrecked 91 cherokee put in as a replacement. That was back in 1995 or there about.
To do the 4.0 swap from the cherokee it required that a wire harness be spliced with the 2.5 engines harness. That didn't go to well, even though I've put on over 70,000 miles since then it hasn't been without it's problems. The wire harness has cut wires going in all directions.. its just a mess.
My plan is to either completely replace the wire harness, but where do I get this done? who is capable of such a task? any suggestions?
My other idea is to purchase a rebuilt 2.5 for about $900 with a 7yr/70,000 mile warrenty from www.jeep-suv-and-parts.com
I'd have to purchase all the assecories and PCM and wire harness again though but I'd basically be bringing the jeep back to stock engine configuration. This is actually seeming like a good plan to me since the problems I've had with the 4.0 and hashed wire harness problems. It would be nice to just have a little 2.5 reliable engine.
I'm curious to get your thoughts on these two ideas...
1) spend $$$ on creating a new wire harness when that may not truely be the cause of the problems...then spend more money in diagnosing the true problem which may be with the engine itself or possible even a fuel delivery problem... the engine is getting adequet fuel pressure though... I've spent countless hours and $ trying to diagnose it already and each time the problem comes back (unable to start).
2) spend about $1500 or so and go back to a freshly rebuilt 2.5. use factory 2.5 wire harness (no messy or questionable wireing), factory computer, purchase all engine add on assecories and brackets again (unless I can reuse what I have on the 4.0)
What do you think of these ideas or do have other good ideas. I do not want to go to anything too radical like a V8 conversion. Would possibly consider another 4.0 conversion from a 92-95 wranger using a freshly rebuilt engine (about $1150 with core exchange) if I can just use a wire harness and pcm from it don't have to splice wire harnesses etc...
Again just looking for a direction to take this and get the jeep rolling again.. Hadn't driven it in almost 2 years since it hasn't started since then and I'm going through withdrawls.
BTW... the Jeep has:
- stock front and rear dana 30 and 35 axles with 4.10 gears
- 35" tires on 15x8 MT wheels
- 3.5" leaf spring lift
- 2" body lift
Very excited to get this going again.