CARS.COM — Most car owners probably don’t know that their vehicle has a crankshaft position sensor until the engine dies, won’t start or starts running poorly. Then when the car is in the ...

Also referred to as a tone ring or timing wheel, the reluctor rides on the back of the crank and is read by a magnetic sensor located ... at L&R Engines in Santa Fe Springs, California, to get ...

It hadn't been starting, and I was told the cause was a broken crankshaft sensor. The repair seems to be successful, and the cost was reasonable. I was curious, though, what is this part and why ...