A 1991 doesn't have a crank sensor, it only has a distributor pick up plate(cam sensor)
Generally in the distributor cap base
on the front of the block near the crank
If the truck has a V 8 engine their is none , these engines still have a distributor located in the front of the engine.
Electronic Throttle Control Sensor
There is no sensor.. it's a series of mechanical gears.
The Dodge Ram Is a way better truck than a crappy f-150... and the Chevy is better overall and in last place ford
can i see a diagram of the location of the abs sensor on 1989 F-150?
inside frame rail under driver door
the cranck sensor is on front of engine it reads the teeth on crank pulley.the cam sensor is on top of same side of engine.