98 sonoma 4x4 ,4.3 vortec. won't start.new battery,coil,pickupcoil,cap,rotor,wires,plugs,fuel pump,checked all fuses, and grounds.even checked pcm.

Check the fuel injectors, with the key on one side of the two wire connector will have battery voltage, if none is present then check the ECM fuses in the underhood fuel box.

seems you,ve replaced just about everything,but i did,nt hear any mention of the coil?

you said you repl dist cap that means you don't have a crank sensor you have electronic ing module. remove your elec ing module have it tested most auto parts stores could test your module, or check your coil at the neg terminal. should have power. if not you lost your primary volt from your batt.your secondary power is coming from your electronic ing module from the module to the pos terminal on the coil, when the eng cranks,from the coil to the dist cap , from the dist cap center to the rotor then out to the plugs,this all happen pervided the timing belt or timing chain is ok. the cumbustion chainber needs 3 things , thats fuel, air, and spark.

did u check to see if u were actually gettin fuel..ur filter might b clogged..and did u replace the button along with the cap and rotor..and did u check to make sure u got spark..it might b the coil..they go without any warning

Have you checked the injectors and wiring. sounds like bad injector or wiring not sending pulse from pc.

The ignition module in the distributor is what you need to give the engine spark to the plugs. It senses signals from the PCM to regulate the spark control and this item is the part that took over the old style point & condensor type ignitions. It is time for a new one in your truck

Check the primary and secondary resistance on your coil, also check the resistance of the plug wires and verify the spark plug gap.

your ecm or engine control modual, usually located behinde the glove box.. it fontroles the coil and distrubator funonctions

Have you checked the cam sensor. It coincides with the crank sensor to tell it to fire . And it controls the injectors.

real comon starting problem for these is moisture in the cap and rotor and plug wires. replace cap, rotor, and wires. while you have the cap and rotor off check the two vent holles in the base of the distributer to see if the screens are plugged. be careful with the srews that hold the cap on the distibuters are plastic and will break.