Question about 2002 Jeep Liberty

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2002 jeep liberty

Engine check lights on and it appears in the analyzer large evap leak

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  • Anonymous Oct 04, 2008

    I have the same problem and have replaced the purge valve solonoide,change spark plug with dimond e3 plugs also had the system on a smoke machine and had a large hole under the gas tank. finally went bought new gas cap from dealer hope this will cure the problem

  • Anonymous Mar 18, 2009

    error code 455 and 422

    changed gas cap not issue

    lite keeps coming on

  • Anonymous Mar 28, 2014

    Is there a special tool for checking and fixing code P0441 for 2004 jeep liberty



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I found that the hoses for the Evap. system near the gas tank had split on the ends and was causing a leak.

Posted on Oct 08, 2008

  • Tommy Pollock
    Tommy Pollock Oct 08, 2008

    p0455= large leak in evap. system.

    I found that the hoses for the Evap system at the rear of the vehicle near the fuel tank had started splitting at the ends and causing leaks. There is a small pump that pulls a vacuum on the system at start up to test it. I am pretty sure that if you get under it and examine those hoses you will find this condition. The hoses are just plain rubber hoses (cheap) I took the hoses to auto zone and matched them up to a heater hose that was similar and was a much better quality hose that had nylon reinforcement it it. (so it won't split again) I feel that many Jeep/Dodge products probably use this same type of hose and will have failures soon if not already.

    Also, when you fix this problem, Reset the codes.....Take it somewhere or unhook your battery.


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I had the same problem.

I got the engine codes evaluated at two place and got the "gross emission/low emission..." (something like that) readout. I was told by both places to replace the gas cap with an OEM, which I did. The light never turned off. Then I got the fuel system cleaned, replaced the spark plugs and oil changed...The light stayed on. These were expensive remedies!

Then my husband suggested I replace the solenoid. We bought it from the dealership for $25. He replaced it and the light turned off and hasn't been back on.

Yay DH!

Hope this helps.

Posted on Jan 10, 2009

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The Code was P0455 What is this and how to fix

Posted on Oct 03, 2008


Posted on Jun 26, 2008

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I would suggest to you to tell the mechanic to replace the EVAP purge valve as the problem is more likely to be that than the fuel tank

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