A technician is rebuilding an engine and notices that one tooth is missing from the crank sensor pulse ring. Technician A says the pulse ring is broken and will have to be replaced. Technician B says that missing tooth identifies when cylinder #1 is at TDC and that the missing tooth is normal. Who is correct?
A) A only
B) B only
C) both A and B
D) neither A nor B

Question

Quizplus · Accepted Answer

The missing tooth on a crank sensor pulse ring is typically used to identify the position of cylinder #1 at Top Dead Center (TDC) and is a normal design feature, not a defect.

A Technician Is Rebuilding an Engine and Notices That One