When a torque converter impeller and turbine speeds match during normal operation,which one of the following must be true?
A) coupling phase
B) lock-up phase
C) peak torque multiplication
D) seized stator

Question

Quizplus · Accepted Answer

When a torque converter impeller and turbine speeds match during normal operation, it indicates the lock-up phase. This phase is designed to improve efficiency by mechanically connecting the engine to the transmission, thereby eliminating the fluid coupling effect and reducing slippage and heat generation.

When a Torque Converter Impeller and Turbine Speeds Match During