It is inside the distributor.
it might have a bad cam positioning sensor
That is the sensor after the catalytic converter.
On the bellhousing
the crank sensor is located on the top front of the tranny
Yes it can
Check your air filter and throttle position sensor
A 1991 doesn't have a crank sensor, it only has a distributor pick up plate(cam sensor)
Dodge Ram Van was created in 1971.
try the transmission ouput speed sensor
Dodge ram van dies after starting
Unscrew the one bolt that holds it on.