Quote:
Originally Posted by Graplr
He doesn't know for sure. He said he was driving it with a "tick" for a long time and the tick starting getting louder the day it went out. I don't know any more specifics than that. He said he was able to coast into some Chrysler dealership near where he was. But that is some 90 miles away from his house or mine.
Would everything plug up and sit the same on a pre-99 swap? Would I have to change any accessories/electronics?
I've found a low miles 96 I6 4.0 for sale locally. If it will swap easily I think I would recommend we get that one. But I do not know if it will work.
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Ouch, sounds like it could be a main bearing. But heck, could also be the alternator bearing and finally seized. I am not sure HOW backwards compatible those engines are, I would have to imagine that it is not plug and play, if anything for the emissions stuff on the later engines. Also, in many states you can only legally do an engine swap if the engine you are swapping in is newer than the one you're replacing, so check the laws regarding that. Chances are, finding an engine from a comparable WJ chassis would be your best bet, and even moving up to the V8 might not be too hard, but I'd check the Jeep forums on that. Those I6s are nearly bulletproof (I typically compare them to the OM617).
Here are some links you'll probably find useful, and probably have better answers than I do:
WJ Grand Cherokee Forum - JeepForum.com
North American Grand Cherokee Association
ZJ/WJ Grand Cherokee Forum - JeepsUnlimited.com Forums
Lots of resources on those engines and Jeeps in general since they have such enormous followings.