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valve body part I don't recognize?! help!!!

This is a discussion on valve body part I don't recognize?! help!!! within the Automatic Transmission forums, part of the Drivetrain category; hello there, my name is jack, this is my first post on here, sorry it has to be a problem ...

  1. #1
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    silver
    99 camaro z28

    valve body part I don't recognize?! help!!!

    hello there,
    my name is jack, this is my first post on here, sorry it has to be a problem
    question!!
    I am rebuilding my auto transmission (camaro z28 ls1 1998, 4l60e), got the valve body all stripped and cleaned,
    going back together fine until i got to the 'converter clutch signal valve' as it calls it in the book, and it just doesn't match the pictures in the book at all, and it has a spring with it that doesn't seem to match up either. ( I have the atsg book for the 4l60e and the gm service manual)
    I checked all the other valves and it doesn't match any of those either so I haven't mixed any up? now because it doesn't match the pictures I don't know which way around to install it, or which side to put the spring, I was stupid not to note how it came out ! . . . I thought it might be an upgrade part from a shift kit or something but I can't find any pics of the valves online to compare it to . . .
    if I knew how to post a picture of it I would!

    has anybody any idea what I'm talking about! . . and can you help please???

    any help would be greatly appreciated . . thanks . . jack

  2. #2
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    silver
    99 camaro z28

    Smile took a guess

    hello . . . I took a guess at how it should fit and gears all seem to work,
    I could do with a bit more gearbox pressure at wot though, is there a simple
    way to do this or do I need to plug the computer in? . . anyways . .
    I got it back on the street which is the main thing, I can go drivin now . . jaCK

  3. #3
    Member 98Z-28Camaro's Avatar
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    black
    1998 Z-28 Camaro

    The only way I know of is to computer tune it but I am sure there is another way.

  4. #4
    Senior Member mrr23's Avatar
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    dark bowling green
    2000 corvette

    the pressure control solenoid. it is on the back side of the valvebody. it has a tiny torx bit screw on it. one turn clockwise.

  5. #5
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    silver
    99 camaro z28

    Thumbs up thanks

    ohhh thanks for the tip, I am doing an oil change in about 60 miles so I'll
    have a look at the solenoid while the pan is off . . thanks guys . .
    I thought the computer would just turn the pressure back down if I turned it
    up manually? . . I'll give it a try anyways . . .

    do you know what kind of pressure I ought to be aiming for?

  6. #6
    Senior Member mrr23's Avatar
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    dark bowling green
    2000 corvette

    computer won't compensate for it. i'm just over 300 psi at WOT shifts.

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