The crank position sensor is on the front of the engine. It is behind the crank pulley on the left side.
No cam, but yes crank
Was not used in that year.
That truck still has a distributor, it doesn't have a crank position sensor.
Should be one 10mm bolt.
It is on the passenger side of the engine block, aprox above the starter.
The ECM controls the timing with information sent to it from sensors such as the crank sensor and the knock sensor.
The function of the knock sensor ob a sensor on a 1991 4.3 s10 is to provide the computer the position of the crank shaft to give it the right information to get correct timing. That would be the crank position sensor. The knock sensor monitors the engine for spark knock (ping) so the ECM (Engine Control Module) can retard the timing to eliminate it.
4.3L? Behind the bottom pulley, on the passenger side.
under the coil pack rr of engine block
Need to know what size engine.V6, Vortex 4.3
Locate the crank sensor behind the vibration damper (crankshaft pulley). Unplug the wire harness connected to it. Remove the small bolt holding the sensor in place. Remove the sensor.