Truck wont start?

We need to check for spark and fuel, see if the engine will run on starting fluid. Next lets check for spark this will help narrow down which system is not working, it will run on starting fluid care the fuel pump has gone out which is common on these cars.

Check out this video.

https://youtu.be/baq_aEWNQ0Y

this guide may help as well

https://www.2carpros.com/articles/car-not-running-advanced

If it has spark here is how to change the fuel pump out. Check out the images (Below). Please let us know what happens.

Check the battery to make sure it is cranking fast enough to start.

The fuel pressure needs to be checked to verify pressure.

Spray some starting fluid into the air cleaner and see if it starts and stalls.

Roy

I dont know. I cannot hear it here but from your description, I would look at bascis first like fuel pressure, spark and compression.

Roy

Get a helper disconnect a sparkplug wire or 2 and ground it to the engine at least 3/16 away from ground -have helper crank engine over-do you have a snapping blue spark?

No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs, coil's resistances, distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it.

Did you swap out the tumblers so that the keys are the same? I dont think it would hurt otherwise. Does it crank and not start?

The ignition lock cylinder sensor and harness assy is a good possiblility. Have a hair dryer or heat gun and heat up the steering column when the no start occurs. If it starts, chances are pretty goo that you nailed it.

It may be a good idea to check the codes.

Try another key otherwise have a local professional scan for codes as it may be a security issue so they have to find out what has gone wrong with it.

Step1 -scanned the computer for code/s

Step2- If you haven't checked for fuel and spark-Do below

Disconnect a sparkplug wire or 2 and ground it to the engine atleast 3/16 in away from ground have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem, check the fuel pressure to rule out the fuel filter/fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs, coil's resistances, cap and rotor /distributor pick-up coil, ignition control module, ECM, Ignitor camshaft and crankshaft sensors- Note: If it doesn't apply disregard it

Find the purple wire at the starter and hook up a voltmeter to it -red lead of voltmeter to purple wire and black lead to a good ground-should be battery voltage, if so replace starter, if not check starter relay, neutral safety switch/park and neutal switch and ignition switch.

The clicking noise you are hearing is probably the fuel pump relay which turns on the pump to prime the system when the key is in the "ON" or "RUN" position. You must have disconnected something in between the relay and the pump.
I am giving you the wiring diagrams so you can trace the circuit. They are for a 2.2L engine, so if you have the other engine let me know and I will give you those. The diagrams are labeled, 1of3, 2of3, etc. Note that 1of3 has realy on the end of file name. In the upper right part of this diagram you will see the pump relay and you can align all 3 diagrams from left to right to match up wires to follow circuit.
I am going to have to sned you 3 messages as our function to attach multiple files is not working. Each message will have one diagram attached.