A vehicle with an Allison transmission comes in to the shop with a code for a crankshaft speed sensor. Tech A states that the torque converter may be damaged. Tech B states that the code may indicate the transmission is slipping. Who is correct?

Question

Quizplus · Accepted Answer

The crankshaft speed sensor monitors the speed of the crankshaft. If the torque converter is damaged, it can cause the crankshaft speed to fluctuate, which can trigger the code for the crankshaft speed sensor.

A Vehicle with an Allison Transmission Comes in to the Shop