Truck will not start?

Hi,

Do you mean the starter isn't engaging? If that is the case, we need to determine where the circuit is losing power.

Take a look through this link first:

https://www.2carpros.com/articles/starter-not-working-repair

Next, I need to know if all other electrical components are working other than the starter.

If everything else works, I need you to check for power at the clutch safety switch when the key is in the start position. Check for power both in and out of the switch.

Next, at the starter, you will find a smaller gauge purple wire that is the trigger wire. That wire should only get power when the key is in the start position. Have a helper depress the clutch and turn the key to the start position while you check for power.

I attached the wiring schematic for the starting system below, so you have a reference.

Let me know what you find. Also, please confirm the engine size. There are three different V8 engines used. The schematic below is for a 5.3L engine.

Take care,

joe

See pics below.