Results 1 to 9 of 9

Thread: 90 2.4 fuel injected mighty max randomly cuts gas off?

  1. #1

    Array
    Status
    Offline
    Join Date
    02-06-2021
    Posts
    7
    Location

    Harlingen Texas
    Vehicle

    1989 Mitsubishi Mighty Max
    Engine

    4G64

    90 2.4 fuel injected mighty max randomly cuts gas off?

    Hey guys just trying to get my MM running better

    Ive been driving it around and most of the time there isn’t a problem. I reach speeds of 65-70 no prob, BUT there has been times where I’m driving on the highway and in the city where the truck somehow cuts the flow of gas and turns off. it starts right up no problem but then it’ll do it after again and again.
    Not sure if it’s a fuel problem, or a spark problem

    I’ve replaced the fuel pump and filter, new spark plugs, and wires

    thanks in advance

  2. #2


    Array
    Status
    Offline
    Join Date
    05-01-2018
    Posts
    1,414
    Location

    Kailua, HI
    Vehicle

    1986 Dodge Power Ram 50
    Engine

    G54B
    Ignition switch ?

  3. #3



    Array
    Status
    Offline
    Join Date
    03-06-2018
    Posts
    478
    Location

    Tucson, AZ USA
    Vehicle

    1987 Dodge Ram 50
    Engine

    G54B
    Could be a flake of debris in your fuel tank gets sucked up against the pickup tube, starving it for fuel until the pump loses power and relieves the suction, then the debris drifts away allowing it to start and run again.
    1987 Dodge Ram 50 4G54 RWD longbed ("Elmo")
    1979 Lancia Beta Zagato spider ("Lola")
    1982 Lancia Beta Zagato spider ("Luigi")

  4. #4

    Array
    Status
    Offline
    Join Date
    06-15-2014
    Posts
    6,059
    Location

    Adelaide, South Australia
    Vehicle

    1985 Mitsubishi L200
    Engine

    G63B
    Check your ignition coil. If the ballast resistor is really hot after a shut down event, it may have a hairline crack in it. The engine shut-off/ cold restart is a classic symptom. Check it by touch but be warned - if it has failed it will be hot enough to burn your fingers! Any other symptoms? Does it just die, or does it struggle/misfire first or a sudden loss of power then shuts off etc
    support the forum that supports you - join and donate to MightyRam50.Net today! donations unlock the edit function

  5. #5

    Array
    Status
    Offline
    Join Date
    02-06-2021
    Posts
    7
    Location

    Harlingen Texas
    Vehicle

    1989 Mitsubishi Mighty Max
    Engine

    4G64
    Thanks guys! @geezer101 yes it does misfire, loss of power sometimes followed by a backfire and then it turns off. Sometimes I’m able to start it up again right after it shuts off. I’ll definitely order a new coil. Also it doesn’t have a maf sensor would that be part of the problem? Lol it seems to be running fine with out it

  6. #6

    Array
    Status
    Offline
    Join Date
    06-15-2014
    Posts
    6,059
    Location

    Adelaide, South Australia
    Vehicle

    1985 Mitsubishi L200
    Engine

    G63B
    Possible that it's a blocked fuel filter? When was it last checked/replaced?
    support the forum that supports you - join and donate to MightyRam50.Net today! donations unlock the edit function

  7. #7

    Array
    Status
    Offline
    Join Date
    02-06-2021
    Posts
    7
    Location

    Harlingen Texas
    Vehicle

    1989 Mitsubishi Mighty Max
    Engine

    4G64
    Recently it’s a new filter and pump ����

  8. #8

    Array
    Status
    Offline
    Join Date
    02-06-2021
    Posts
    7
    Location

    Harlingen Texas
    Vehicle

    1989 Mitsubishi Mighty Max
    Engine

    4G64
    Recently it’s a new filter and pump ����

  9. #9

    Array
    Status
    Offline
    Join Date
    06-15-2014
    Posts
    6,059
    Location

    Adelaide, South Australia
    Vehicle

    1985 Mitsubishi L200
    Engine

    G63B
    It may also be an intermittent electrical fault. Not easy to diagnose.
    support the forum that supports you - join and donate to MightyRam50.Net today! donations unlock the edit function

Bookmarks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •