Why all of a sudden one Morning the truck's engine cranks, but does not start?

Hi,

Have you checked to make sure the battery terminals are clean and tight? I ask because the starter places a heavy draw on the battery and if the connection isn't good, this can happen. Take a look through this link.

https://www.2carpros.com/articles/everything-goes-dead-when-engine-is-cranked

Also, can you tell if the click is the starter motor? There is a chance the starter motor itself may have failed.

If the click isn't from the starter, there could be a faulty fuse or relay. I attached the wiring schematic below showing the starter circuit. I highlighted the fuse and relay in question. The easiest thing to do is this.

Have a helper turn the key to the start position while you check for voltage at the yellow wire on the starter motor. If you have power and everything is tight, the starter is likely the issue. If there is no power, work back to the relay and fuse.

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

Take care,

Joe

See pics below.

Hi,

You are very welcome. I'm glad to know it's working again.

Please feel free to come back anytime in the future. You are always welcome here.

Take care,

Joe