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Thread: 4l60e

  1. #11
    Joe (Moderator) joecar's Avatar
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    Quote Originally Posted by IJ. View Post
    Would Force Motor do what he's after Joe?

    Yes, he could reduce the Force Motor Current able... (this would make base line pressure go up)...

    but it wouldn't be match what it actually is... so his base pressure would now be good but his shifts might get harsh.


    ( I usually don't like messing with this table )

  2. #12
    Joe (Moderator) joecar's Avatar
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    lbheart,

    thinking it over... take a look a tables D3802 and D3803 (type one of these in the search box and click the search button)...


    if you decrease these tables then line pressure will go up.

  3. #13
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    i see what you mean.

    how much should i decrease them by?
    i'm wondering if i should decrease entire table or just the low pressure side of things i dont want to send the pressure too high and do damage


    what are your thoughts?
    Last edited by lbheart; September 11th, 2013 at 07:20 PM.

  4. #14
    Joe (Moderator) joecar's Avatar
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    The low pressure side of the table is the high current portion... try 10-15% decrease.


    Do you have a pressure gauge to connect to the line tap on the side of the case...? If so you can watch line pressure after you change the table.

  5. #15
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    i have several pressure gauges ill have a look and if not ill buy a suitable one.
    what sort of pressures am i looking for?
    where is this tap?

    picked up new full recon box yesterday its in my shed ready to go for the weekend

  6. #16
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    where are you from joecar?

  7. #17
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    The stock Holden values for these tables is very very low in the left top corner, to the point my built 60 wouldn't select 1st gear at idle....

    Another "cause" of the 3/4 failure is if you leave the shifter in D and the car kicks down to 2nd under any sort of load the 3/4 pack is still partially engaged/ slow to exhaust when it selects 2nd and the 3/4 pack loses... :( (ask how I know this)

    Doesn't happen if the shifter is in 3rd at the time of kickdown to 2nd.

  8. #18
    Joe (Moderator) joecar's Avatar
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    Quote Originally Posted by lbheart View Post
    i have several pressure gauges ill have a look and if not ill buy a suitable one.
    what sort of pressures am i looking for?
    where is this tap?

    picked up new full recon box yesterday its in my shed ready to go for the weekend
    Tap is on LHS of case, above gear selector lever/shaft.

    Depends on year/model/engine... I'll have to look in my service manual...

  9. #19
    Joe (Moderator) joecar's Avatar
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    Quote Originally Posted by lbheart View Post
    where are you from joecar?
    I'm from the Sydney suburbs.

    I'm in Los Angeles at the moment (for the last 25 years) for short term.

  10. #20
    Joe (Moderator) joecar's Avatar
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    Quote Originally Posted by IJ. View Post
    The stock Holden values for these tables is very very low in the left top corner, to the point my built 60 wouldn't select 1st gear at idle....

    Another "cause" of the 3/4 failure is if you leave the shifter in D and the car kicks down to 2nd under any sort of load the 3/4 pack is still partially engaged/ slow to exhaust when it selects 2nd and the 3/4 pack loses... :( (ask how I know this)

    Doesn't happen if the shifter is in 3rd at the time of kickdown to 2nd.
    This might be one of the reasons why GM/Hydra-Matic removed the 3-2 control solenoid in the later 4L65E's.

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