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Thread: Just got an 89' Mitsubishi Mighty Max in CA

  1. #1

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    07-23-2012
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    Location

    California
    Vehicle

    1989 Mitsubishi Mighty Max
    Engine

    I.D.K.?

    Just got an 89' Mitsubishi Mighty Max in CA

    Its the 2.6L model. It only has 40,000 original miles and I got it for $2000. Its probably going to need new tires soon because it was sitting for a while and the tires are old. I think it has some sort of vacuum leak at the brake booster because it bogs as you press the brakes and sometimes stalls when coming to a stop.

  2. #2


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    08-31-2011
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    Calgary, Alberta, Canada
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    1981 Dodge D-50
    Engine

    Ford V8
    If it sat for a long time the diaphram in the booster might have cracked. easy enough fix. you can get one from www.rockauto.com for around $90

    And welcome to the site

  3. #3

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    03-26-2011
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    Location

    Portland, OR
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    1986 Dodge Power Ram 50
    Engine

    G54B
    40k miles? WOW! Damn good score.

    If it's been sitting for a long time, make sure no mice made nests out of your wiring, too. Or bees nests in the ducts, etc, etc.

    Welcome aboard!

  4. #4

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    04-06-2011
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    Location

    Jacksonville, FL
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    1990 Mitsubishi Mighty Max
    Engine

    G54B-T
    pics!!!

  5. #5

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    07-23-2012
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    Location

    California
    Vehicle

    1989 Mitsubishi Mighty Max
    Engine

    I.D.K.?
    The haynes manual says not to take apart the brake booster because it requires extra tools. How do I actually replace the booster diaphragm. I remove the booster and take it apart? Also, does carb cleaner hurt the rubber hoses and stuff so I can search for a vacuum leak? I will try to get pics soon.

  6. #6



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    03-16-2011
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    Sacramento, CA
    Vehicle

    1979 Dodge D-50
    Engine

    Chevy V6
    You just replace the hole thing. Unbolt the master and pull the 4 nuts in the cab. Forget trying to just replace the diaphragm.
    Members come and members go, But the board keeps track of them.
    Check out the Fear Monger by
    clicking HERE.

    The MightyRam50 site is sponsored in part by On Site Concrete Inc.

  7. #7

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    04-06-2011
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    Location

    Jacksonville, FL
    Vehicle

    1990 Mitsubishi Mighty Max
    Engine

    G54B-T
    carb clean isnt good for the hoses but it should be okay unless theyre already in sad shape.

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