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| EVAP System leak detected http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=1&t=15281 |
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| Author: | LibertyorDeath21 [ Wed Dec 06, 2006 1:26 pm ] |
| Post subject: | EVAP System leak detected |
I have received 2 problem codes from a friend who is a vocational mechanic teacher showing our 2002 Liberty has a EVAP system leak detected (PO451) and Evaporative Emission Control System Pressure Sensor Range/Performance (PO455). I realize the problem can be just about anything but does anyone know if this would prevent a vehicle from passing an State Emissions Test? Thanks for any help in advance |
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| Author: | meh_kick [ Wed Dec 06, 2006 8:32 pm ] |
| Post subject: | |
Um, Ohio did away with the E-Check a year ago... |
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| Author: | chefdab [ Thu Dec 07, 2006 6:53 pm ] |
| Post subject: | |
Check the gas cap. It has been known to throw those types of codes when not properly screwed on. |
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| Author: | KY Liberty [ Thu Dec 07, 2006 9:11 pm ] |
| Post subject: | |
Check your fuel lines too. I had to have all mine replaced when it was less than 3 years old. They looked like they were 10 years old. |
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| Author: | LibertyorDeath21 [ Fri Dec 08, 2006 7:54 am ] |
| Post subject: | |
We did try replacing the gas cap and that worked for a day before the light came back on. However, the car did pass the emission test yesterday so it must be a minor leak. I will have them check the fuel lines. Thanks for the help. |
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| Author: | Signcutter21 [ Fri Dec 08, 2006 3:45 pm ] |
| Post subject: | |
Liberty, Search back within the last week or so. There was a decent size thread about the few main ways to fix this problem. Nothing too difficult that you couldn't do yourself. later, mike |
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| Author: | ks2002kj [ Sun Dec 31, 2006 1:26 am ] |
| Post subject: | |
Check the hoses on the canister by the gas tank. Well known problem. I had it on my 2002. |
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| Author: | LibertyorDeath21 [ Sun Dec 31, 2006 8:43 pm ] |
| Post subject: | EVAP leak posts |
Thanks for all the suggestions, I soon hope to rectify the problem |
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| Author: | LiLredLibby [ Sun Dec 31, 2006 11:25 pm ] |
| Post subject: | Re: EVAP leak posts |
LibertyorDeath21 wrote: Thanks for all the suggestions, I soon hope to rectify the problem I've been an ASE Tech for 24 years,and the shop I work at is an E-Check approved repair facility.Up in the engine compartment you will find a test cap for pressurizing the e-vap system.It will be green in color.We use a special gas charged machine that will fill the system with a pressurized smoke.Someone up in your area will probably be able to do this for you at a reasonable cost.
Hope this helps. 
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