Question about Pontiac Grand Am

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How do i change the transmission control solenoid in my 1995 grand am.. where is it located?

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  • whateverd230 Nov 06, 2010

    what the problem is duane, is i come up to a stop sign, as i come to a stop, downshifting from second to first gear makes a grinding sound. doesnt do it all the time. it only does it at that time, shifting up always works smooth in all gears. if im turning a corner and i slow down anough, as i turn and its between gears it slams into second. so when i know i am coming to a complete stop. i will drop car into N, come to stop, and put back in gear, that eliminates the grind. normally it always goes into gear, now its starting to not go into gear when i shift back in.. R works but nothing forward.. so i was stranded, towed car home on dolly cus it wouldnt go into gear. got home and dropped car, backed into driveway, tried puting it into D and it went into gear.. tried driving close to home later, worked ok for 2 blocks, stopped at stopsign, didnt grind came to stop, wouldnt go forward.. i was told sounds like a solenoid issue and the tranny wasnt bad.. whats your opinion on the problem? i was thinking about changing solenoid and tranny filter and fluid.. would you reccomend that?

  • whateverd230 Nov 06, 2010

    what the problem is duane, is i come up to a stop sign, as i come to a stop, downshifting from second to first gear makes a grinding sound. doesnt do it all the time. it only does it at that time, shifting up always works smooth in all gears. if im turning a corner and i slow down anough, as i turn and its between gears it slams into second. so when i know i am coming to a complete stop. i will drop car into N, come to stop, and put back in gear, that eliminates the grind. normally it always goes into gear, now its starting to not go into gear when i shift back in.. R works but nothing forward.. so i was stranded, towed car home on dolly cus it wouldnt go into gear. got home and dropped car, backed into driveway, tried puting it into D and it went into gear.. tried driving close to home later, worked ok for 2 blocks, stopped at stopsign, didnt grind came to stop, wouldnt go forward.. i was told sounds like a solenoid issue and the tranny wasnt bad.. whats your opinion on the problem? i was thinking about changing solenoid and tranny filter and fluid.. would you reccomend that?

  • whateverd230 Nov 07, 2010

    i thank you very much for your time. i concluded that taking it to a shop is going to be the best and only solution, i was not aware the solenoids were in as difficult of a spot as they are. your input has been very helpful

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  • Pontiac Master
  • 6,826 Answers

The solenoids are installed in the valve body and the transmission must be drained and removed to service it in a rebuild process.

Maybe, if the transmission is giving you problems, change it out with one with low miles that functions correctly at a transmission shop.

Posted on Nov 06, 2010

  • 2 more comments 
  • Duane Wong
    Duane Wong Nov 06, 2010

    The thing that makes it tricky is that the valve body contains the solenoids in modern transmissions.

    So, the transmission is usually removed, and at that time the wearable parts are all changed over in the 'rebuild' process.



    I think that most people are not qualified to perform the service reliably and that a certified transmission technician or professional should be utilized to rectify the situation.



    The thing is that the transmission's solenoids are generally not changeable while on the car, so easily.



    I wouldn't recommend it for a novice technician, even, without the guidance of someone who has done it before.



    Special tools and jacks are required to remove the transmission from the vehicle to start with.

    And, then, a very clean environment is required for transmission service, to avoid dirt and sand from entering the transmission bell housing area.



    For that, I would recommend a certified technician in the transmission/transaxle field.



    Good luck on repairing this problem.


  • Duane Wong
    Duane Wong Nov 06, 2010

    Now, a problem with a dirty solenoid can sometimes be rectified by flushing and filling the transmission with new fluid.



    That costs about $100 and you could take it to a shop that specializes in this to try to fix the problem.



    But, if that doesn't work immediately, a rebuild or replacement is usually the route to go, if you plan to keep the car.



    Good luck, again.

  • Duane Wong
    Duane Wong Nov 06, 2010

    In summary, I would say there is a problem on the transmission, and that service is required by a transmission repair specialist.



    I would not recommend tackling it yourself unless you've done it before, on this model.


  • Duane Wong
    Duane Wong Nov 07, 2010

    Sure thing. I wish you luck on this repair.

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