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Old 06-25-2012, 06:17 AM
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Talking 4.0l engine noise how long will it last?

I picked up an 01 wj 4x4 4.0l 6 cylinder project car for $600 a few weeks ago and it has a slight rod or lifter noise, my question is since the 4.0 is durable do you think i could change the oil and just use it around town for now until it goes out?, i mean it still has good oil pressure and it doesnt have blowby or smoke. I do have a spare 4.0 that i plan to swap in eventually. Thanks
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Old 06-25-2012, 05:30 PM
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Re: 4.0l engine noise how long will it last?

Without exactly knowing what is wrong, difficult to say. But if you don't want to re-use this engine after the swap, then there is not that much what can go wrong.
This engine seems to be quite strong, so probably will still last a long time. And you can always decide to swap the other engine in sooner if the noise gets too scary.
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Old 06-28-2012, 06:31 PM
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Re: 4.0l engine noise how long will it last?

Most 99+ 4.0s IIRC have wrist pin problems IIRC. Only a matter of time.
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