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1stJeepKJ
 Post subject: Code P 0442
PostPosted: Wed Aug 02, 2006 11:54 am 
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Does anyone know what this code means? I had the dealer do a tune up on my KJ and the check engine light came on 5 days laters and is throwing out the code P 0442.

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Marlon_JBT
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PostPosted: Wed Aug 02, 2006 2:32 pm 
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Loose gas cap.

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1stJeepKJ
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PostPosted: Wed Aug 02, 2006 2:37 pm 
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Location: Eagle Mountain, Utah
Thanks

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uctke283
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PostPosted: Wed Aug 02, 2006 9:26 pm 
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I had that code about a month ago. I was told to replace the gas cap after i tightened it and hadthe code reset the light kept coming back. P0442 is listed as a small evap emission leak.. It turns out I had a holein one of the hoses that go into the charcoal canister near the fuel tank. After replacing the hose, the light went out and stayed out!

So it may not be just a gas cap, but definietly check that first....

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ks2002kj
 Post subject:
PostPosted: Thu Aug 03, 2006 9:46 am 
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That hose going to the canister by the gas tank was my trouble. It split right at the nipple. Replaced it, code went away after a few restarts.

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Jeepjeepster
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PostPosted: Thu Aug 03, 2006 10:52 am 
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ks2002kj wrote:
That hose going to the canister by the gas tank was my trouble. It split right at the nipple. Replaced it, code went away after a few restarts.


You said nipple. :shock:

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1stJeepKJ
 Post subject:
PostPosted: Thu Aug 03, 2006 11:35 am 
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Where did you buy that hose? Part number?

I just find it interesting that right after the dealer has had it for a tune up this happens.

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barto
 Post subject:
PostPosted: Wed May 30, 2007 6:43 pm 
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I also need this hose, anyone know what size, or part number. It is cracked and I am going to wrap it in tape for now.

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Jeepjeepster
 Post subject:
PostPosted: Wed May 30, 2007 8:52 pm 
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Sometimes I see stuff that I posted along time ago and wonder what I was thinking. :shock: :lol:

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barto
 Post subject:
PostPosted: Sat Jun 02, 2007 10:51 am 
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I am going to go to the store today. When I figure out what size fuel hose this is I will post so we can put the info in the tech section or something. Seems like this is a common question on this board and others, but I have not been able to find out what size it is.

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