Question about 2002 Jeep Liberty

4 Answers

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

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Posted on Jun 26, 2008

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Related Questions:

1 Answer

Check engine lite


Check your gas cap, or have your codes checked sounds like evap leak

Mar 02, 2015 | 2002 Jeep Liberty

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I have a 2005 Jeep liberty and I recently lost my gas cap(4 days ago). My check engine light came on and I am wondering if it is due to the gas cap being lost. Going to buy a new one today.


Yes...the cap needs to be on there or the purge system will register a leak. The light may not go out right away but usually will after about thirty miles of driving. (computer needs to go through a complete self test cycle).

May 18, 2011 | Jeep Liberty Cars & Trucks

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I have a 2002 jeep liberty limited 3.7 code p1494 how to fix it and where is it


p1494
Leak detection pump pressure switch or meahanical fault
could be a leak in the evap system.hard to tract down becuse a large leak ishole small as 0.040-inch.

Sep 17, 2010 | 2002 Jeep Liberty

1 Answer

2002 Jeep Liberty: Battery cable loose wire was


first, though you mentioned no oil leaking, is there oil in the engine?
Next, if engine runs well and is not ticking or tapping, have the codes checked...most larger parts stores do this free. Once you have the stored codes you can look up what system is malfunctioning.
If engine is making any noise at all or there is no oil in it, DO NOT START OR DRIVE IT...make sure whoever did the oil change knows about this now...If someone forgot to put oil in, they may be buying you a new engine!
At this point it may be something simple but can also be very serious.(hope not)
good luck

Jan 29, 2010 | 2002 Jeep Liberty

1 Answer

2003 Jeep Liberty


p0455 is evap control system no purge or large leak
p0442 is evap control system leak detected (small leak)

the cause for both could actually be a loose gas cap.

Dec 18, 2009 | 2002 Jeep Grand Cherokee

1 Answer

Troubleshooting code # 0442 on 2002 Jeep Liberty


Im guessing its a P0442. That means:
EVAP LEAK MONITOR MEDIUM 0.040 LEAK DETECTED
Causes of this could be a few things.
I recommend replacing the gas cap. Then take it to an auto place to get them to erase the code.
If it comes back on then...
Under the hood is a small green cap. That is the EVAP line. Follow that all the way to the gas tank and see if you see any leaks. If you do, replace/repair it.
If you dont then the only thing you honestly can do is take it to a mechanic with an EVAP Emission Leak Detector [EELD]
Good Luck!!

Nov 02, 2009 | 2002 Jeep Liberty

1 Answer

PO455 odb scan code evap. system large leak. 2003 jeep liberty sport 42,000 miles Where do I start to shoot the problem


you need a smoke machine to fill evap sysytem and it will leak smoke out where the leak is to many tight places to look without

Sep 25, 2009 | 2003 Jeep Liberty

1 Answer

Check Engine Light is on


you should be able to hear it while it's running... but look from the air filter to the other end of the hose for anything that is off

Robert

Jan 13, 2009 | 2002 Jeep Liberty

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