Not getting any fire on a 2005 chevy silverado 4.3L

On a 2005 4.3 does the crankshaft sensor run in oil.?
CKP. CRANK POSITION SENSOR
it's wet the the tone reluctor wheel is inside and is wet.

https://youtu.be/Nuwrpo60nUM

yours is wet it has o-ring
CKP sensor not HALL sensors love to fail at low RPM
the are crude coils.

with plastic cover off the wet RELECTOR wheel is seen.
do not let the new sensor hit the high side flats. or it is wrecked the new sensor.
low ,high low notched, are TDC marks.
set the gap per video and or he TSB from Chevy read it..

sounds like a crankshaft position sensor if you have or can have the computer scanned a code should come out of what your issue is

if it not firing change the coils if thats not it then you may want to check the fuse but if not firing i would check the coil because where they are located on the engine under the mainfold it gets real hot there

The sensor for the crankshaft position may be loose or misaligned. You may have a rust spot on the crankshaft interferring with the ability to pick up the #5 position.

Check out your alternator as stray electrical voltage will interfere with the pulses needed to fire individual plugs. Try WD40 on the wires to the coils(plugs) as stray voltage may jump to another plug.

You fixed what you identified, but how about injector pulses? Could easily misfire and give same effect as sparkmiss. You may need to get loaner tools from Autozone or others to test injectors with the lightbulb you insert in the injector harness.

I hope my solution is helpful.

did you check for fuel pressure at the fuel rail?
listen for the fuel pump when you turn the key on
did you change the wire harness when you changed the pump?

test and replace electric part of ignition

sound like a sensor but it could be worst timing belt come in to play if you have need replaced it at 80000 miles.

what engine? 3.0L 2 Valve? 4 Valve?
3.4L SHO engine?

The PCM (engine computer) fires the coils, but it is never the cause of a problem. I suspect it is the crankshaft position sensor on the front of the engine by the crank pulley. easy to change.

Crankshaft Position Sensor The crankshaft position sensor (CKP sensor) (6C315) is a variable reluctance sensor triggered by a 36-minus-1 tooth trigger wheel located on the crankshaft pulley and damper. The signal generated from the crankshaft position sensor is called the crankshaft position (CKP) signal, which provides base timing and crankshaft speed (rpm) information to the ignition control module (ICM) (12K072). Base timing is set at 10±2 degrees before top dead center (BTDC) AND IS NOT ADJUSTABLE. The powertrain control module (PCM) (12A650) will use this information with the spark advance information to determine ignition coil (12029) turn on or turn off time.

You need to put the harmonic balance for the 96 jeep on this motor,then put the crankshaft sensor on for the 96 jeep on the vehicle,this should fix you up.The crankshaft sensor and the harmonic balance have to go together.If I can be further help,let me know.>>[email protected]

check to see if your truck has a crankshaft position sensor, its usually located behind the harmonic balancer or right near there, if the sensor went bad or if the wiring got messed up there will be no signal to the ecm telling the ecm when to send spark to the coil. the crankshaft position sensor is responsible for telling the computer when to fire the spark plugs based on rpm and timing. check the wires on the crankshaft position sensor, if they look fine, replace the sensor, hope this helps!