Flashing Engine light

Discussion in 'KJ General Discussion' started by EvilSnipa, May 3, 2021.

  1. EvilSnipa

    EvilSnipa Full Access Member

    Messages:
    54
    Likes Received:
    0
    Joined:
    Mar 24, 2014
    Location:
    St.pete
    I hope someone can help me out with this weird problem i been having. About once a month ill jump in the jeep and start it up and the engine light starts flashing and of course its misfiring bad. I shut it off and wait 2 seconds start it back up and it runs fine. I haven't really investigated into it much cause like i said it only happens like once a month.Thanks for any help!
     
  2. tommudd

    tommudd Moderator Staff Member Moderator

    Messages:
    19,502
    Likes Received:
    1,128
    Joined:
    Jul 14, 2005
    Location:
    Southeastern Ohio
    What year ?
    Any codes or have you checked ?
    Weather , any differences ?
    How long has it been doing this ?
     
  3. EvilSnipa

    EvilSnipa Full Access Member

    Messages:
    54
    Likes Received:
    0
    Joined:
    Mar 24, 2014
    Location:
    St.pete
    Thanks Tom for the fast reply. Its a 2002, as for codes im getting p0300 p0301 p0303 weather is the same
     
  4. EvilSnipa

    EvilSnipa Full Access Member

    Messages:
    54
    Likes Received:
    0
    Joined:
    Mar 24, 2014
    Location:
    St.pete
    Its been doing this for about 6 months. So may have happened 5 or 6 times.
     
  5. LibertyTC

    LibertyTC Well-Known Member Staff Member Moderator

    Messages:
    7,983
    Likes Received:
    806
    Joined:
    Oct 24, 2008
    Location:
    B.C. Canada
    How many miles on Jeep? Misfires not good.
    Have you replaced the spark plugs? They should be changed every 30K miles anyways.
    Only use NGK ZFR6F-11G gap at .040 inch.
    If it is a higher mileage 3.7 do a compression test, record psi #s on each cylinder, report back findings.