Engine cuts out

The first thing I would check is the Injection Control Pressure (ICP) sensor or the wire harness and connector to the ICP sensor. The last one of these I did, I had to replace the connector because it was damaged and corroded. The sensor is located on the right (passenger side) valve cover next near the oil fill neck. These sensors have a tendency to leak and cause problems but if I were a betting man, I would lean more towards the wiring or connector.

The 6.0 Power-stroke uses high pressure oil to operate the fuel injectors. The ICP monitors the oil pressure supplied to the fuel injectors. If it sees no pressure, the controller will shut down the injectors electrically. There are tools you can buy that will allow you to monitor critical engine parameters while driving. This might help you get a clearer picture of what is going on.

Since the problem is intermittent, I suspect the wiring but start with the ICP, then the next thing I would check is the cam position sensor (CPS) and it is associated wires and connector. The CPS sensor is located on the front of the engine at about the 11-o'clock position from the crank pulley. Let me know what you find.

Jon

Are you getting any codes on the scan tool?

Hello,

I have seen the injector control module relay go bad and the crankshaft angle sensor cause this problem neither will leave a code. Here are engine wiring diagrams so you can see how the system works and the location of the relay and crankshaft sensor:

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

Check out the diagrams (below). Please let us know what you find.

Cheers, Ken

Crank sensors go out all the time, when it comes to electronics they can be tested and be deemed okay, but when they are loaded in use they can stop working. You can set up a test but it is cumbersome.

I would use a voltmeter on AC then crank it over you sounds see between 1.5 and 3 volts.

https://www.2carpros.com/articles/how-to-use-a-voltmeter

The problem is even if it tests good it can still be bad under load.

Have you changed the filter? Here are diagrams to help. It could be water in the fuel causing the issues. Here are the instructions on how to change the fuel filter and drain the water. Check out the diagrams (below). Please let us know what you find.

Yep the crankshaft sensor will cause the engine to stall. I would try a new sensor first. This guide will walk you through the steps with diagrams below to show you on your engine.

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

Check out the diagrams (below). Please let us know what happens.