Transmission Shifts Hard - Valve Body?

Discussion in 'General Motoring' started by Gary Compton, Aug 16, 2004.

  1. Gary Compton

    Gary Compton Guest

    My 93 SL1 with SOC engine began shifting hard recently. I've been told that
    it is probably the "valve body", which is exterior to the transmission. Has
    anyone out there had experience in changing one of these? Is it easy to get
    to and is it a hugh job? Its a $1200 job at local Lee Myles transmission
    shop. I can get the valve body and actuators for about $550. Any helpful
    comments will be appreciated.
    Gary Compton, Aug 16, 2004
  2. Gary Compton

    jdoe Guest

    It's not a HARD job but not necessarily one to be taken on by someone who is
    inexperienced either. FWIW I bought the VB for my own at the dealer and it
    was only $195 after core charge. It took me about 2.5 hours to do on my SL2
    but that was because of 2 things 1. I spent alot of time exploring things
    and the VB itself. 2. It was the first time I've ever looked under the hood
    of a Saturn. I do have alot of wrenching experience though and am well
    equipped for tools because of it. FWIW if I had to do it again I could get
    it done in 30 to 45 min.
    jdoe, Aug 16, 2004
  3. Gary Compton

    Blah Blah Guest

    One should have a book, a good torque wrench, and the proper tighting
    sequence. You're lucky its easy to get to. I think those prices they
    gave you must be a generic quote. It doesnt sound like there's that much
    labor involved.
    Blah Blah, Aug 16, 2004
  4. Gary Compton

    riz Guest

    I had a quote from a local trans shop two years ago they wanted about $400
    for the job.
    riz, Aug 16, 2004
  5. Gary Compton

    Gary Compton Guest

    Thanks to all for the good information. One more question. About half the
    price of $550 I was quoted for the parts was for the actuators. How can I
    tell if the actuators need to be changed along with the valve body? Does
    anyone other than the dealer sell these parts?
    Gary Compton, Aug 16, 2004
  6. Gary Compton

    Blah Blah Guest

    You can check the shift solenoids with an Ohm Meter. You will need to
    know their values at a given temperature which should be given in a good
    manual. From my TranX 2000 documentation the resistance of each should
    be the following.

    There is 7 actuators and it list them with all the same values.

    TAAT Transmission

    91-92 2.5 Ohms Cold / 4.4 Ohms Hot

    93-up 4.0 Ohms Cold / 6.0 Ohms Hot
    Blah Blah, Aug 17, 2004
  7. Gary Compton

    Gary Compton Guest

    Hi Larry:

    I have a couple of questions about replacing the valve body on a 93’ SL1
    SOHC. I haven’t been able to find a manual that covers this subject – do
    you have a recommendation? Haynes doesn’t cover transmissions, nor does
    Chilton. Chilton has a tranny manual, but doesn’t cover Saturn. My local
    library has ALLDATA, which has a some transmission information, but doesn’t
    cover removing the VB. If I can’t find a manual, is the removal simple
    enough to be done without? I’m hoping that the removal process will be
    obvious and that if I reverse the process I will be able to get the
    replacement on. I assume the VB is under the plate on top of the
    transmission – is that correct? Any other advise?

    Thanks much,

    Gary Compton, Aug 20, 2004
  8. Gary Compton

    Blah Blah Guest

    Theres more to it than how easy something is removed. Your valvebody is
    the heart of that transmission. Improper torque to it and one vain may
    shoot fluid past the gasket and into another and cause major damage to
    your entire transmission. You'll need to hunt for a real Saturn service
    manual. You dont need to find a 93 only manual. I think they're the same
    upto 95-99? 91-92 is slightly different.
    Someone ought to make a on car repair webpage for TAAT valve bodies.
    Theres enough people out their seeking this info.
    Blah Blah, Aug 21, 2004
  9. Gary Compton

    Gary Compton Guest

    Thanks Larry:

    I found a Saturn 91-94 factory transmission manual on E-Bay for $9.50,
    including shipping.

    Gary Compton, Aug 21, 2004
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