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Thread: 94 trans not locking up

  1. #1
    Join Date
    Apr 2018
    Location
    Roggen
    Posts
    7

    Default 94 trans not locking up

    I’ve done searches but not coming up with anything.

    94 2500 213k 6.5td. It will lock up once when initially started but if I stop at a stop sign and go it will not again until I shut it off. I am getting a brake on code. Which I’m sure is why it’s not locking but I can’t figure out why. Switch is new, and it doesn’t look like there’s any sort of adjustment on these. Not sure which way to go. I can’t drive it like this, don’t wanna cook the trans. Any ideas?

  2. #2
    Join Date
    Apr 2001
    Location
    Newberg Oregon
    Posts
    12,282

    Default

    Hi

    What is the code you are getting ??? What number ???
    (1) 1995 Suburban 2500 4x4
    (1) 1997 Astro
    (1) 2005 Suburban (Papa Smurf)
    THIS IS BOW TIE COUNTRY

  3. #3
    Join Date
    Apr 2018
    Location
    Roggen
    Posts
    7

    Default

    Sorry for the delay, I haven’t had time to toss the code reader on. It’s a code 37

  4. #4
    Join Date
    May 2014
    Location
    us, ga
    Posts
    166

    Default

    I also had a similar weird problem like yours and it was the 3rd brake light. May be totally different than your issue. I had a wire that burned at the 3rd light housing, and was grounding, causing my trans to act stupid.. Good luck!

  5. #5
    Join Date
    Apr 2001
    Location
    Newberg Oregon
    Posts
    12,282

    Default

    #37 is "Brake switch stuck on"
    (1) 1995 Suburban 2500 4x4
    (1) 1997 Astro
    (1) 2005 Suburban (Papa Smurf)
    THIS IS BOW TIE COUNTRY

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