Originally Posted by wilc4087
Anybody got a line in a 4.0 complete with harness? What's a good price? Plans to take the jeep to the lake fell apart due to a crappy running 4.2l. Ready to throw that motor in the lake.
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I am in the same position. After my last trip up at 7000 ft elevation, I remembered why they got rid of the carb.
Find a 91 or newer Cherokee and buy the whole car. Yes car. Take what you want out of it and part out the rest to get some of your money back. Then sell the carcass to a bone yard for a little more.
CA smog rules say you must use a newer engine and move all the smog equipment from the newer vehicle to the old one. FI Cherokars have less smog stuff than the 87-90 YJs. Much simpler system.
This is what I am doing. You can find a decent Cherokar for $1500 or less. Do a valve job on the engine before you put it in. Cost less than $100 if you take the head to a shop and then put it back on by yourself.
You are going to need stuff like the crank position sensor, computer, cat converter, harness, etc... out of the donor vehicle..
Pretty simple swap.
My 4.2 runs great. It's that crappy BA10/5 transmission I hate. But to swap in an AX15 would cost me $500 and I'm still stuck with all that smog crap and a carb. I am wanting to convert to auto trans anyway.
I am doing this swap as soon as I get a couple more projects on my ranch done.