Page 1 of 11 123 ... LastLast
Results 1 to 10 of 109

Thread: TCC releasing at crusing speeds with light throttle

  1. #1
    Lifetime Member HellKnightHicks's Avatar
    Join Date
    Mar 2011
    Posts
    268

    Default TCC releasing at crusing speeds with light throttle

    So ill be driving along and the TCC will unlock doing 50 miles per hour.. When the throttle is lightly pressed it will stall up.


    Any ideas as to why...?

    I think my tables are all in line with they should be. I've even adjusted a little to try to keep it locked...

    Wondering if there is something wrong with the clutch in the TC... But it will re-egauge if you let way off the thorttle.

    Thanks in advance for any help you provide.

    Smoothed VE_0005 - Trans Changes TCC.tun
    NEW Shocks.efi

  2. #2
    Joe (Moderator) joecar's Avatar
    Join Date
    Apr 2003
    Posts
    28,403

    Default

    Log a few more pids:
    TSTATE09
    TSTATE10
    GEAR
    TCCMODE
    TCCDC
    TCCSLIP
    TIS
    TOS

  3. #3
    Lifetime Member
    Join Date
    Aug 2010
    Posts
    1,934

    Default

    x 2

  4. #4
    Lifetime Member HellKnightHicks's Avatar
    Join Date
    Mar 2011
    Posts
    268

    Default

    roger roger

    Ill do that this afternoon.

  5. #5
    Lifetime Member HellKnightHicks's Avatar
    Join Date
    Mar 2011
    Posts
    268

    Default

    I increased the pressures as per some of the discussions ive read that you both posted on. The TCC was locking and holding like it was supposed to after flashing the tune tonight.

    Ill log and post on the way to work in the morning.

    It still needs some tuning and i need some guidance.

    Hopefully this really has fixed the issue. Ill post up after the drive in the morning.

    Thanks fellas.

  6. #6
    Lifetime Member HellKnightHicks's Avatar
    Join Date
    Mar 2011
    Posts
    268

    Default

    Well i guess none of that stuff helped...
    Once I'm up in 4th with TCC lockup and it has to come out it just wont hold it after that.

    It will appear to go into lock but then starts stalling at any force increase on the engine.

    check this log about 20 min in.

    Im pretty sure i still have an exhaust leak somewhere after the header I believe.

  7. #7

  8. #8
    Lifetime Member
    Join Date
    Aug 2010
    Posts
    1,934

    Default

    Are you getting a P0300 DTC from time to time ?

    Often misfires will disable the TC lockup. Yours is set to the OEM "2 Trips". After the reflash (which would clear the DTCs) it would take two trips for the DTC to set again - which would inhibit TC lockup.

    Can you add misfire count (can't recall the exact PID) to the logged PIDs and get one more log.

  9. #9
    Joe (Moderator) joecar's Avatar
    Join Date
    Apr 2003
    Posts
    28,403

    Default

    Looks to me like TP rate exceeds threshold for unlocking TCC.


    Click image for larger version. 

Name:	TCC unlock.png 
Views:	631 
Size:	165.2 KB 
ID:	15953Click image for larger version. 

Name:	TCC lock state.png 
Views:	638 
Size:	91.6 KB 
ID:	15954

  10. #10
    Lifetime Member
    Join Date
    Aug 2010
    Posts
    1,934

    Default

    Thanks Joecar ... overlooked the state misfire off PID ... had just scanned for the misfire count PID.

Page 1 of 11 123 ... LastLast

Similar Threads

  1. Light Throttle Surging
    By Behold in forum General (Petrol, Gas, Ethanol)
    Replies: 4
    Last Post: July 28th, 2013, 02:49 PM
  2. Trans hits 4th hard with light/no throttle, fine with moderate throttle
    By Supercharged111 in forum 4speed RWD/FWD Transmission Tuning (incl T42)
    Replies: 6
    Last Post: April 4th, 2013, 11:10 AM
  3. TCC slips at light throttle
    By rumblebox in forum 4speed RWD/FWD Transmission Tuning (incl T42)
    Replies: 2
    Last Post: December 5th, 2012, 04:13 AM
  4. light throttle surge.
    By activity233 in forum Gen III V8 Specific
    Replies: 11
    Last Post: November 25th, 2012, 11:14 AM
  5. Replies: 23
    Last Post: May 23rd, 2010, 07:38 PM

Posting Permissions

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