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Unread 03-30-2006, 05:09 PM   #1
JackMJeep
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4.0L High Output???
I saw a sticker that said 4.0 HO. Do they really make a 4.0 HO and if they do how do you know if you have one. Thanks.

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Unread 03-30-2006, 05:11 PM   #2
Hunter9
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yeah it must have been a older YJ, they did have the "High Output" 4.0.
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Unread 03-30-2006, 05:23 PM   #3
ColoradoTJ
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It's a title given only to YJ's, your TJ has the same power number sas the High Output YJ's.
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Unread 03-30-2006, 05:24 PM   #4
Hardkrawler
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So you can now go out and get yourself a HO sticker if you want.
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Unread 03-30-2006, 05:53 PM   #5
ImSuck
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haha yes there is a high output 4.0
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Unread 04-03-2006, 03:01 PM   #6
Jerry Bransford
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The High Output 4.0L came out in around 1991 and all 4.0L engines became H.O. within another year or two. Shortly after that, Jeep stopped including the High Output emblem on the body.
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