Engine shut off while idling and will not start

Hi,

If you lost spark, chances are it is the result of a bad crankshaft position sensor. Take a look through this link:

https://www.2carpros.com/articles/symptoms-of-a-bad-crankshaft-sensor

Since it doesn't start with starting fluid, chances are you are correct, there is no spark. Here is what you can do. First, if you can get a live data scan tool, connect it and crank the engine to see if there is an RPM signal. Or, if the truck has a tachometer, see if it moving when cranking. It should show between 100 and 200 RPM's. If it doesn't move or there is no RPM signal, my first suspect is the aforementioned sensor.

Here is a link that shows in general how one is replaced:

https://www.2carpros.com/articles/crankshaft-angle-sensor-replacement

Here are directions specific to your vehicle. The attached pic correlates with the directions. Note: The Crankshaft Position (CKP) sensor is located near the outer edge of the flywheel (starter ringear).
______________________________

2002 Dodge or Ram Truck RAM 1500 Truck 2WD V8-5.9L VIN Z
Procedures
Vehicle Powertrain Management Sensors and Switches - Powertrain Management Sensors and Switches - Computers and Control Systems Crankshaft Position Sensor Service and Repair Procedures
PROCEDURES
Fig. 13 CKP Removal/Installation - 5.9L

see pic 1

REMOVAL
The sensor is bolted to the top of the cylinder block near the rear of right cylinder head.
1. Raise vehicle.
2. Disconnect crankshaft position sensor pigtail harness from main wiring harness.
3. Remove two sensor (recessed hex head) mounting bolts.
4. Remove sensor from engine.

INSTALLATION
1. Position crankshaft position sensor to engine.
2. Install mounting bolts and tighten to 8 Nm (70 in. lbs.) torque.
3. Connect main harness electrical connector to sensor.
4. Lower vehicle.

______________________________

Let me know if that helps or if you have other questions.

Take care,
Joe