Automotive Transmission Archives - Transmission Digest
Converter Clutch Control Part 2

An understanding of hydraulics is essential for properly diagnosing and repairing transmission problems. This is part two of a two-part article on how an understanding of converter clutch control aids in transmission diagnostics. Part one described fluid path and torque converter terminology. Part two examines the source and factors affecting the control of the clutch.

When it is Broken

Planetary gear sets and their operation are unappealing for many. Know what is turning and what is holding for each gear can challenge one’s thinking. Particularly so when there are 10 speeds and 3 planetary gear sets involved. I actually enjoy pushing my mind to visualize powerflow and indeed, it can be challenging at times. But it sure does go a long way when trying to isolate a noise problem.

Hayden: Cool Stuff

As for the transmission builder, Miller points out that the transmission being rebuilt has already failed under the conditions the vehicle owner puts the car through. It would only make sense that a heat failure should be addressed by decreasing the possibility of such future failures.