2002 8.1 crankshaft positioning sensor R&R by dearlership.
BurbMan recommended having the dealer replace the crank shaft positioning sensor. That makes sense to me. Is it a major job and what might it cost. Thanks in advance.
Forum Discussion
The computer is pretty sophisticated and as far as I know everything else should set a code that can be read with a scan tool. The way it was explained to me was that since the 8.1 has no distributor, the PCM relies on the crank sensor to know where the crankshaft is so it knows when to fire each spark plug. When the sensor doesn't read or sends an unusable signal, the PCM won't fire the plugs if it doesn't know where the crank is to avoid severe engine damage. So the instant that the PCM detects a crank sensor error it also shuts down to disable the ignition, and in the process interrupts the process of storing a code.
By the way, let us know if that solved the issues you were having with the truck randomly shutting down.
By the way, let us know if that solved the issues you were having with the truck randomly shutting down.
