Fuel pump 07/12, crankshaft sensor, fuel pump relay, new battery. Truck quit 8/4, won't crank, tune-up 12/10, don't drive lots, disabled. Today, brother-in-law said it wasn't getting fire or gas, can someone please help me figure out the problem, haynes manual not much help.

 

Welcome to DF
I will move your post to the 2nd Gen Ram section.

 

Doesn't make much sense. I suppose these are dates things were done?

Any codes? Gotta have fuel, spark, and air. Swap a realy with the ASD relay. What is fuel pressure? Need to be 45 to 50 psi. Pull plug wire off and crank to see if you have fire.

What was done on tune up?

 

sounds like your going long periods without a start/drive..when you say no crank I'm taking that as nothing when you turn the key..which should rule out fuel..I would say even if you put in a new bat, either something drained it and/or something is up with your alternator..you can pull it and have it tested at you local part store and go from there..post you findings

 

Truck has no codes/no check engine, so I'm confused? Yes, completed repairs. Switched relays, new fuel pump relay, & used dialectric grease. Brother-in-law put ohmmeter on crankshaft sensor, no fuel/fire. Maybe electrical, unsure. Old fuel pump was 40 psi. New fuel pump from autopartswarehouse.com 07/12, worked 3 weeks, now it won't crank at all, new battery 5/12 also. Turns over but won't crank.

 

Tune-up = plugs/plug wires/distributor cap. Truck has no codes/no check engine, so I'm confused? Yes, completed repairs. Switched relays, new fuel pump relay, & used dialectric grease. Brother-in-law put ohmmeter on crankshaft sensor wire, no fuel, or fire. Maybe electrical, unsure. Old fuel pump was 40 psi, new fuel pump from autopartswarehouse.com 07/12, worked 3 weeks, now it won't crank at all, new battery 5/12 also. Turns over but won't crank.

 

I'm guessing you mean it cranks but won't start? Do you check pressure on the installed pump? Test the coil? Volts on new bat?