evap

  1. K

    Fuel tank vent / rollover valve

    I think I have finally found the actual issue after over a year of trying to figure this out. I keep getting various EVAP error codes, and I have replaced the LDP and the solenoid. I have also done smoke leak testing and found no leaks. Today I drove about 20 min away and then put gas in, no...
  2. K

    Code P0440, but can't find the leak

    I have been getting a P0440 Evap Leak code. I have recently replaced the LDP (which I discovered was faulty during a smoke test a few months ago), the solenoid, and the gas cap. I smoke tested it again, and there are no leaks, I believe. I was getting smoke at the tank vent by the filler tube...
  3. K

    P0452 with random stalling

    I noticed it stalled when slowing down to stop at a stop sign, and sometimes it ran a little rough while driving. It then threw a P0452 code. I did replace a faulty LDP just a few months ago, and it seemed to run fine afterward. Could the LDP be bad again? Purge valve? Runs just fine when it's...
  4. K

    EVAP / Fuel fill issues

    I have two issues that may be related. One, I am getting a small and a large EVAP leak error. Second, when you put fuel in, you must put it in slowly because if you try to fill quickly, the pump almost immediately stops. I am thinking these might be related, but how? First, I checked the purge...
  5. JeepSpace

    2006 Liberty Sport 3.7 EVAP system nightmare. Seeking info, suggestions, help.

    Hello All, I've had an ongoing issue with my EVAP system that no one can seem to pin down. I've worked with 3 mechanics, for various prices, expertise, and other reasons, and still no luck. Here's the History. Noticed the vehicle would choke out and have trouble starting after driving a few...

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