Torque converter failure - working vs non-working

This is showing the testing of a correctly working torque converter versus a non-working unit. The non-working one was brand new and was showing a P0742 code - TCC stuck off. To perform the test, the TC is pressurized with air as it normally would be with hydraulic fluid. The TC should lock up when pressure is applied. The correctly working one (Precision from TripleEdgePerformance) locks up, while the non-working one (ZZP unit) does not.

Видео Torque converter failure - working vs non-working канала Andrew Suderman