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Thread: St Paul Mitsubishi Fanatic Proud New Owner of Mighty Max!

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  1. #1

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    08-11-2012
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    1,199
    Location

    Oakland, CA
    Vehicle

    1989 Mitsubishi Mighty Max
    Engine

    G63B
    OD is fourth. There's an annoying emissions feature on these transmissions that prevent it from shifting into OD until the engine temperature is in the normal range. There's a single prong temp sensor on the intake manifold that can be grounded to de-activate this feature.

    But it sounds like this isn't the problem you're having.

  2. #2

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    Join Date
    09-17-2015
    Posts
    18
    Location

    St. Paul, MN
    Vehicle

    1991 Mitsubishi Mighty Max
    Engine

    4G64
    Quote Originally Posted by noahwins View Post
    OD is fourth. There's an annoying emissions feature on these transmissions that prevent it from shifting into OD until the engine temperature is in the normal range. There's a single prong temp sensor on the intake manifold that can be grounded to de-activate this feature.

    But it sounds like this isn't the problem you're having.
    I will ground that ASAP and make sure this isn't the issue but yea it would only affect 4th not 3rd like it seems.

    Quote Originally Posted by finalfighter View Post
    did you drive it from fl to mn like this or did it happen afterwards. Have a tranny shop look at it. there are test ports on the side of these trannys to find out what is happening. any dodge or mitsu dealer should know how to check it.
    It was at a dealer up here and had been here for a year or so. I didn't know you could test these. I'm practically sponsored by my local Mitsubishi dealer thanks to the many cars and customers I've had go through there so maybe tomorrow or Monday I will have them scan it.

    Quote Originally Posted by pennyman1 View Post
    check the kickdown cable also - if it is not connected or misadjusted it could cause that - my 91 dogkota had an A500 tranny that fried under warranty because the valve body was sticking and misdirected the fluid big time.
    Pardon my ignorance, I'll have to figure out where that is located and how that is adjusted? I can totally see how that could make a difference. I had an adjustment much like this done at a shop on an ol' Chevy truck with a TH400E.

    Thanks again everyone for the support. I will continue trying things asap. My weekends are full but by this time next week, I better have a remedy under way. I just can't wait to drive it and get some errands done

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