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Old 03-10-2007, 11:50 AM   #1
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OBDII Code Help Again.................Please

Well now it looks like I have touched them all with the evap leaks:
P0442-Evap Leak Medium
P0455-Evap Leak Large
P0456-Evap Leak Small
I first asked about this back in November when I purchased my Jeep, at that time I was getting the P0455 Evap Leak Large, I purchased a new gas cap and then I got the P0456 Evap Leak Small, now today I get the P0442 Evap Leak Medium. This is really starting to get aggravating, does anyone have any other ideas, or do I need to take it to the stealer? Thanks again, Scooby

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Old 03-10-2007, 11:57 AM   #2
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did you check all hoses from/to the evap canister?

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Old 03-10-2007, 12:00 PM   #3
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check all the vac lines that go to the evap crap. my dad had one fall off his manifold in his 4.0 XJ if anything is cracked or loose, replaces it or throw a zip tie on it.
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Old 03-10-2007, 03:34 PM   #4
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I had a hose with a small crack in it, it would trip different codes depending on the temp. Took a few mins of really looking till I found it.
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Old 03-12-2007, 09:44 AM   #5
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Thanks averyone, I will start looking. Scooby
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Old 03-12-2007, 01:33 PM   #6
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Shops will have a smoke generator that they can plug into a system, pump smoke under pressure and you can see the leaks pretty quick. I've thought about rigging one up with a 12v tire compressor but have not persued it yet. Mostly because I have not decided how to generate the smoke...
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Old 03-12-2007, 06:26 PM   #7
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what about dry ice smoke???

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