88 xj Cherokee 4.0 knocking - JeepForum.com
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post #1 of 3 Old 01-24-2013, 02:32 PM Thread Starter
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1998 TJ Wrangler 
Join Date: Jan 2013
Location: Braselton
Posts: 12
88 xj Cherokee 4.0 knocking

I'm looking at buying a 88 Cherokee that has a 4.0 and automatic transmission (believe aw4 but not 100%) that is knocking pretty loudly. It's a constant knock, but I believe it to be the torque converter/flex plate bolts needing to be tightened. The whole jeep has 284k but the engine has 190k allegedly. My main question is if I buy it and it's not a simple fix, can I bolt in my 83 cj7s 4.2 258 in place of the 4.0? It's a good running engine with 83k. Is it a simple bolt in swap or will adapters be needed?

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post #2 of 3 Old 01-24-2013, 03:30 PM
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1998 ZJ 
Join Date: Dec 2011
Location: Sheboygan
Posts: 495
If its not for the right price I wouldnt even think of it. And youd be better off going to a junk yard and getting another 4.0. Then you know it will bolt right up and you wont have issues.

1998 ZJ Limited 5.9
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post #3 of 3 Old 01-24-2013, 03:44 PM Thread Starter
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1998 TJ Wrangler 
Join Date: Jan 2013
Location: Braselton
Posts: 12
Well it's got a good lift on it that's fairly recent and brand new 33" tires he's asking $2000 total for it which I found reasonable. But there again I'm new to Cherokees. I've got 4 CJ's that I've been slowly piecing together but Cherokees are a whole new thing to me haha

J.E.E.P. - Just Empty Every Pocket
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4.0 i6 , 4.2 to 4.0 swap , automatic transmission , cherokee

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