Loose gas cap

Discussion in 'KJ General Discussion' started by bluetick, Mar 1, 2016.

  1. bluetick

    bluetick Full Access Member

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    The check engine light went on in my Liberty. Naturally I immediately checked the gas cap and it was loose. But even after three clicks it was still loose. So I bought a new gas cap. Same problem; three clicks and it's still loose. I'm stumped.
     
  2. Dave

    Dave Administrator Administrator Moderator

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    You went to a Jeep dealer and got a MOPAR OEM gas cap????


    Dave
     
  3. bluetick

    bluetick Full Access Member

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    Dave, yes went to the dealer and picked up a MOPAR oem cap.
     
  4. teeje

    teeje Full Access Member

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    Sounds like you might have an evap leak somewhere. Get it smoke tested


    2002 Jeep Liberty 3.7L with brand new engine ;)
    Sent from my iPhone using Tapatalk
     
  5. bluetick

    bluetick Full Access Member

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    But why would the cap remain loose even after tightening it three clicks?
     
  6. LibertyTC

    LibertyTC Well-Known Member Staff Member Moderator

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    Loose in what manner? Does it wobble side to side?
    Check the rubber sealing washer to be present and not compressed.
    It should look like this...
    [​IMG]
    If you are not sure return it and try another one...
     
  7. colorado76

    colorado76 Full Access Member

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    If the cap was not the fix. Then start with the purge solenoid. But when I had this issue. It was the EVAP leak detection pump. Hope that this information helps you out.:happy160:
     
  8. bluetick

    bluetick Full Access Member

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    Ok, I started it up today and no check engine light. By the way, when I said it was loose, I mean turning it three clicks didn't tighten it. Not side to side, but circularly.
     
  9. profdlp

    profdlp On The Ledge

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    You can crank that think forever, if you want to, at least I can on my 2007.

    I had the same thing happen a couple months ago, except in my case it actually said "loose gas cap" on the dash. It took me a couple times of removing/replacing it but it finally went out and stayed out. I blame the Kardashians. :mexsmoke:
     
  10. JeepJeepster

    JeepJeepster Full Access Member

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    My stock gas cap also doesn't like to stay tight, its caused a check engine light before. If you tighten it, then try to loosen it, its as if it was never tight at all. Just comes right back off.

    If I put some weight into it when tightening it, it seems to stay tight.