truck cranks but will not run.

when cranked... do u smell gas in the tail pipe?

No smell of gas in tail pipe.

Was it running before you gave it this tune-up?

yes

I've been doing tune-ups for over 20 years & always triple check my work. Thank U 4 your answer.

I am curious as to why you replaced the fuel pump and sender if it was running before the parts replacement. Perhaps you left something unplugged?

should smell fuel... fuel starved. i too wonder why pump was changed?

U R NOT paying attention to what I said! triple check doesn't mean just once,it means 3 times!

ANY vehicle I ever had that is 100,000 or more ALWAYS get a new fuel filter,fuel pump & sending unit.