1996 Chevy Silverado engine wont fire

Hello, if your saying, it cranks good but won't start and you have no spark at the plugs? You can take the coil wire loose from the cap, hold close to engine ground, have helper crank it while you watch for spark to jump from the wire to ground. If you have spark, the problem maybe the cap or rotor. If no spark, check the coil primary terminals. Pink is voltage, with the engine cranking, there should be a pulse on the white wires. If no pulse, possible problems wiring circuits--ignition module--crank sensor. You can also do an ohms test on the coil primary and secondary.

Can you check for codes? You can't check proper fuel pressure without gage.

Did you check the coil primary circuits like I mentioned? Is the coil wire, ok?

The coil wire sounds ok. The white wire at the coil should have a pulse, engine cranking. If you have a digital multimeter that has a tach--duty cycle or dwell setting, it should react to a pulse.

Yes, It should be a dc pulse. My info shows two white wires coming from the coil. Both should have a dc pulse, engine cranking. I'd put a scanner on it that shows live engine data, crank the engine, look for an rpm signal on the scanner. Go from there.

Yes, engine cranking, both wires should have a pulse.

Hello, refresh my memory, will you? What is the litre size of engine? Automatic-- v8?

The crank sensor is a hall switch, three wires, pink is voltage goes hot when you turn on the key. Purple is ground. Yellow is the signal wire, with the engine cranking, a dc pulse on that wire.

The white wire doesn't come from the coil driver, it goes to the coil driver from the pcm. I'm not saying the pcm is faulty. Did you check the wiring circuits at the crank sensor?