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Old 07-14-2013, 01:37 AM   #1
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Life span of a stock engine?

Say it's a v6 4.0. How many miles it can typically roll before a necessary repair or rebuilt?
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Old 07-14-2013, 08:03 AM   #2
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I'm no expert on Jeep's but I don't believe Jeep ever produced a V6 4L. The V6's are something like 3.6 or 3.8 L.

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Old 07-14-2013, 08:38 AM   #3
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I've seen some I6's 4.0 reach 400,000 before a rebuild. Proper maintenance will make an engine run good for many miles and many years
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Old 07-14-2013, 08:46 AM   #4
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Youre gonna get alot of flack on the v6 I6 thing >< First off if its a 4.0L engine its gonna be an I6 (Inline 6 cylinder)

Now that thats all cleared up, in some states, the body will rot out before the engine goes bad. Proper maintenance is key. theres a few threads about how many miles on your 4.0L engine, and there are loads over 200k.

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Old 07-14-2013, 09:29 AM   #5
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Posts: 4,869 the others said...there is no 4L v6...

maintain it and dont beat it to death and you'll go well over 200k.
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Old 07-14-2013, 10:02 AM   #6
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Oh yeah stupid of me... I mean I6..

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