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+--- Thread: 722.6 no torque converter clutch lockup (/showthread.php?tid=5224)
722.6 no torque converter clutch lockup - raysorenson - 12-31-2013
I'm 100% certain that the converter clutch does not lock up or partially lock up in my W210 under any conditions. There are no warning lights and no other symptoms.
Has anyone had this problem on a 722.6 before? Do the converter clutches wear out?
RE: 722.6 no torque converter clutch lockup - DeliveryValve - 12-31-2013
Yes, the clutch do wear out. But it can also be a solenoid problem in the valve body (perhaps an orifice is clogged) or the TCM is not functioning properly.
If it is the TCM, maybe you can do a factory reset.
http://mbworld.org/forums/w211-amg/148019-holy-crap-you-guys-sneaky-ecu-reset-works.html
More info to sink your teeth on..
.
RE: 722.6 no torque converter clutch lockup - raysorenson - 12-31-2013
I saw that. Seems to be standard TCC solenoid operation procedure, regardless of manufacturer.
I'm wondering if the TCM will log a DTC when the TCC slips due to mechanical fault only. On Fords and other makes, TCC clutch slippage is monitored via engine RPM vs output shaft speed. It's a useful DTC.
Are TCM codes checked through the OBDII port? It's looking like it's time to replace my lost copy of EPC :-(
RE: 722.6 no torque converter clutch lockup - Duncansport - 12-31-2013
(12-31-2013, 04:20 PM)raysorenson I saw that. Seems to be standard TCC solenoid operation procedure, regardless of manufacturer.
I'm wondering if the TCM will log a DTC when the TCC slips due to mechanical fault only. On Fords and other makes, TCC clutch slippage is monitored via engine RPM vs output shaft speed. It's a useful DTC.
Are TCM codes checked through the OBDII port? It's looking like it's time to replace my lost copy of EPC :-(
.6's opperate the TCC as a slipping type of clutch. The TCC do wear out fairly often.... easy to diag by adaptation numbers