Results 1 to 5 of 5

Trans isssue after bigger stall

This is a discussion on Trans isssue after bigger stall within the Automatic Transmission forums, part of the Drivetrain category; Ok, so i have an 02 SS, and the trans was built less that 8k ago. Its a 4L60E SS ...

  1. #1
    - STOCK ish - Sarge91's Avatar
    Join Date
    Apr 2008
    Location
    Fairhope, Alabama
    Age
    26
    Posts
    779

    Black
    2002 Camaro SS SLP

    Trans isssue after bigger stall

    Ok, so i have an 02 SS, and the trans was built less that 8k ago. Its a 4L60E SS Mega Monster Transmission Complete Rebuild Kit that went in. Has a trans cooler, and was tuned for a 3k stall. Worked fine till i got the Tci 3500-3800 stall in. Now when i got on it its fine blows em off, shifts fine and strong, but when it shifts from 2nd-3rd on WOT it hits the limiter "pop, shift", it didn't do it before this stall, does someone know if i gotta get it re tuned, or change my shift points? Also lockup acts weird, At 80-85 mph, it will lock up but then slide up to 3800 rpm when i barley tap the gas. I know its very loose, and thats fine, just the lockup and OD going 80 is just weird.

    Trans has a shift kit, and i think the line pressure is 10-15% above stock. I did plenty of passes and what not, and it was perfect right before the swap. Trans fluid is fine, i had Schaeffer's Supreme synthetic fluid in it, no problem at all, great stuff, i used about 5q of Mobile 1 ATF, Synthetic, to fill new stall and w/e was lost. I checked and it is safe to mix the 2.


    Any suggestions?


    Thanks
    2002 Camaro SS A4 - SLP# 2951 l MS4 l LT's w/ORY l F.A.S.T 78 & TB l Borla l Cutout l CME l TCI 3500 l 3.23's l !emissions l !sway

  2. #2
    TunedbyFrost.com Tuner Frost's Avatar
    Join Date
    Jul 2007
    Location
    Richmond VA
    Posts
    2,415

    LS1.com Sponsor
    GM Tuner

    If you had tuning for the trans and then added the shift kit, the trans pressure tuning needs to come out since you are physically turning it up with the shift kit or you are going to hurt something.

    If the new stall is looser than the previous, it's possible to hit the limiter on 2-3, though occasionally it's a sign of something worse to come. The lockup at 80 could be false misfires causing unlock; that's common too.

    Contact your tuner and see what he has to say.

  3. #3
    - STOCK ish - Sarge91's Avatar
    Join Date
    Apr 2008
    Location
    Fairhope, Alabama
    Age
    26
    Posts
    779

    Black
    2002 Camaro SS SLP

    After reading frost, i think i may need a new tune and change the shift point. Cause it was 100% fine before new stall.

    Car did it again, but wouldn't go into 1st of OD. Code came up of a PO757 i believe. Something to do with shift solenoid not doing something. Cleared it, and it worked! But then the car started doing it again, no code yet.. Does it when it wants. I read i need to have that code deleted by my tuner?


    And someone else had this pronlem, he has the same problem as i do, but i have it with 1st gear also + the code, He said it was a servo?

    When I'm on the freeway in "D" the car holds 3rd gear when I let off the throttle. When I'm on the throttle and tap the shifter forward into "OD" nothing happens - it will not upshift into 4th. BUT, when I'm in "OD" - still in 3rd gear - and I let off the gas pedal again, the RPM's fall off (just as it would/should if the car really was in overdrive - but its NOT, its still in 3rd gear when I get back on the gas).

  4. #4
    Moderator Cutlass's Avatar
    Join Date
    Apr 2008
    Location
    Madison, WI
    Posts
    6,997

    1999 Formula WS6 M6-sold
    2001 Silverado Z71

    Quote Originally Posted by Sarge91 View Post
    Also lockup acts weird, At 80-85 mph, it will lock up but then slide up to 3800 rpm when i barley tap the gas
    There is also a possible mechanical cause for this. I have seen this several times on some 4L60E's. The torque converter clutch valve in the valve body wears out the bore in the VB and causes low pressure to the lock up clutch. There are service kits out there to replace the worn valve and bore. Either that out a new/rebuilt VB is needed.
    Its just another possiblity...

  5. #5
    TunedbyFrost.com Tuner Frost's Avatar
    Join Date
    Jul 2007
    Location
    Richmond VA
    Posts
    2,415

    LS1.com Sponsor
    GM Tuner

    Quote Originally Posted by Sarge91 View Post
    After reading frost, i think i may need a new tune and change the shift point. Cause it was 100% fine before new stall.

    Car did it again, but wouldn't go into 1st of OD. Code came up of a PO757 i believe. Something to do with shift solenoid not doing something. Cleared it, and it worked! But then the car started doing it again, no code yet.. Does it when it wants. I read i need to have that code deleted by my tuner?


    And someone else had this pronlem, he has the same problem as i do, but i have it with 1st gear also + the code, He said it was a servo?

    When I'm on the freeway in "D" the car holds 3rd gear when I let off the throttle. When I'm on the throttle and tap the shifter forward into "OD" nothing happens - it will not upshift into 4th. BUT, when I'm in "OD" - still in 3rd gear - and I let off the gas pedal again, the RPM's fall off (just as it would/should if the car really was in overdrive - but its NOT, its still in 3rd gear when I get back on the gas).

    It's all fixable through tuning.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. good trans cooler for my a4 3k stall
    By 440 rwhp trans am in forum Automatic Transmission
    Replies: 4
    Last Post: 06-27-2007, 07:55 PM
  2. blower,best trans &stall speed ?
    By mitch98ss in forum Drivetrain
    Replies: 1
    Last Post: 10-25-2006, 05:52 PM
  3. rock on trans 3k stall need tune????
    By juiced99z28 in forum Computer & Tuning
    Replies: 3
    Last Post: 08-28-2006, 12:33 PM
  4. 00 Trans-am H/c LT's Stage2 trans 3200 stall 46k Wisconsin
    By WasteU in forum Vehicles For Sale / Trade
    Replies: 14
    Last Post: 07-31-2006, 07:29 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •