...just tried to fire it up again and no start, this is how it sounds.

 

Pour some water down the back of the engine, right over the CPS. If it starts after that, confirmed bad CPS.

 

...thanks for the tip EXTINCT, but I decided to crawl under and replace it, it was a hassle to reach, mostly to connect the plug, but job done.
It does make a weird noise when starting and shutting down, but it now fires up and runs steady. Ran for a pretty long time, shut it off and fired right up after.
Fired it up an hour ago or so, and still working..
I plan to take it for a spin tomorrow, although a bit wairy that it may leave me stranded, hopefully it will not.
I still need to get a couple of bolts to secure the cover, so if anyone knows the correct specs, great!
Thanks all for the tips, hopefully the issue has been solved.

 

..:: UPDATE ::..
After driving nearly 20 days without issues -just a soft grinding sound after truck starts; I'm stranded again at a stop light, a mile or so from work. Truck wants to start, but does not. Made sure all plugs and wires are connected; nothing off from what I see and based on past weeks experiences; emptied a 16oz bottle of water behind engine, but still not start 20-30 mins after it shut off, with no prior indication of issues, no CES light either. Truck simply died while waiting for light to turn green at stop light.
Just so you all know, I have month old plugs (NGK), wires (KINGSBORNE), coils (BOSCH), and CSP sensor (BOSCH).
Anything I should look into before getting it towed? Thanks.

 

this sucks you couldnt figure this out yet, at this point i would be inspecting all wiring to cps, fuel pump inertia switch etc,

does it die like your shutting it off with the key or does it die like its out of gas does it stumble

 

...it really does REDWHITEKAT; I thought it was solved since it's been running fine for the last 20 days, after it let me stranded in a similar manner at another stoplight then, when I also thought I had fixed the issue. But then, after towing it home, I saw that some wires on driver side got disconnected from plugs, so reconnected them all again, made sure they were tight in place -all 8; secured all wires away from any hot pipes, and also swapped the CSP from AAP with the BOSCH I had also bought, but hadn't replaced; at that point all possible culprits were new (battery, plugs, wires, coils and CSP), and truck started and was running fine; steady, no lights, better than ever, until this morning, when it simply shut off while waiting for light to turn green.

It died like if you were shutting it off with the key; it wasn't like an out of gas issue, and again,, no indicator lighted up; although when trying to start, it sounds like an out of gas issue, but tank has plenty of gas from a Chevron station.

A friend helped me tow it to a nearby mechanic that has worked on my truck before, and after explaining to him all I've done, and him giving it a shot, he says that he'll check if there's anything wrong with fuel system first, and go from there. Hopefully he can figure out what's going on, but again, any pointers I can forward him will be greatly appreciated.
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Thanks again.

 

..:: UPDATE ::..
Upon initial check, mechanic says that no signal is arriving at engine; he pulled a wire and no spark, no fuel getting to injectors, so he will run different diagnostic to try and determine if it is a faulty module or any other electrical issue.
He is discarding all parts I have already changed, since they are new; and he is also discarding a bad fuel pump since his initial check shows it is working.
The winding down noise that I've been hearing lately also catches his attention, since it is just as you try to start it, and winds softly down until it dies out, so he asked if I have ever replaced the starter. It catches his attention though, but does not worry him, since truck has started in the past, with the noise, from what I told him.
Would the Inertia switch be something to look at? it seems he is thinking of some electrical issue is at fault. Any ideas?

 

ya definitely check the wiring to inertia switch and maybe any loose wiring in the ignition key system

 

I've had this truck for over 7 years now, and the anti-theft system had only worked when I get off the truck and lock it from outside, or so I thought.
To my knowledge, the FOB was not working, since I did not use it to press a button to lock/unlock the car.
After checking a couple electrical things on truck, mechanic suggests is the key being damaged and not giving the signal to car to start, since electricity is being cutoff to plugs and injectors? so would a bad FOB Key be the culprit of car not starting?

 

No, bad key is not it. I suspect a bad CPS. Security systems rarely go bad sitting at the light. First thing to check is fuel pressure while cranking. Inertia switch issues will turn off the fuel pump. You can squirt fuel in the intake and if it pops, the ECU has turned off the injectors. typical of CPS. If the red light is blinkingin hte dash, it is security issue.