Haydos87 Posted July 16, 2020 Share Posted July 16, 2020 Looking to turn off torque converter lock-up for gears 1st 2nd and 3rd with ZF trans?? Quote Link to comment Share on other sites More sharing options...
Romulus Posted August 22, 2020 Share Posted August 22, 2020 On 7/16/2020 at 7:11 PM, Haydos87 said: Looking to turn off torque converter lock-up for gears 1st 2nd and 3rd with ZF trans?? Look at the Shift Map/Converter Lock schedule. There are 5 schedules, that will tell you where to adjust. Quote Link to comment Share on other sites More sharing options...
Steve752 Posted March 31, 2021 Share Posted March 31, 2021 Regarding those 5 ZF Converter Schedule Tables (e.g. ZF03885 Converter Schedule 2 Manual Shift Mode) I wonder if someone can help as to the meaning of the three columns for each gear, L, M & H ? Quote Link to comment Share on other sites More sharing options...
BeerTurbo Posted August 3, 2021 Share Posted August 3, 2021 On 3/31/2021 at 4:35 PM, Steve752 said: Regarding those 5 ZF Converter Schedule Tables (e.g. ZF03885 Converter Schedule 2 Manual Shift Mode) I wonder if someone can help as to the meaning of the three columns for each gear, L, M & H ? did you work this out mate Quote Link to comment Share on other sites More sharing options...
Roland@pcmtec Posted August 3, 2021 Share Posted August 3, 2021 Fairly sure it is low medium and high load Quote Link to comment Share on other sites More sharing options...
Steve752 Posted August 4, 2021 Share Posted August 4, 2021 occurred to me it may part of a TCC partial lock strategy viz. Light, Medium, Hard still not 100% sure though & havn't verified. Not sure if the the ZF runs it, but common these days to see TCC partial lock (e.g. controlled approx 50 rpm TCC slip) - helps keep the fuel economy benefits right down at low rpm , but the slip isolates out otherwise annoying driveline booms & vibe disturbances - above certain rpm then can transition to full TCC lock etc.. 3 Quote Link to comment Share on other sites More sharing options...
Roland@pcmtec Posted August 4, 2021 Share Posted August 4, 2021 Sounds like a reasonable hypothesis to me! Quote Link to comment Share on other sites More sharing options...
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