I cant seem to figure out where my spark plug wires go on my distributor cap.. please help

.1st it would create back firing when ur ECT connector not fully seated or else when the idle rough idle. ..

That would be the ignition coil, the part that creates spark at the spark plug. If you follow the electrical path from the coil wire to the distributor cap, and from there, the spinning rotor just under the distributor cap carries the path from the coil wire at the cap's center to the spark plug wires around the dist. cap, and through the plug wire to the spark plug.
The high voltage causing the spark is created in the ignition coil by the engine computer at the precise right moment signaling an ignition module to cut 12 volts current to the ignition coil. This causes the coil to internally build up high voltage which is passed through the coil to distributor cap wire. The computer knows the precise right moment to initiate spark from engine sensors, primarily the crank position sensor and the cam position sensor.

change one spark wire at a time on the distributor.buy new set of spark plugs wires remove them from box.match old wires with new wires to use the correct length to each cylinder.now if you need to change distributor cap.mark location distributor cap.number tag plug wires on the distributor cap so you can remove plug wires on distributor cap so you can replace cap and rotor and put wires back on the distributor cap in correct place.remember change one plug wire at a time so you wont get confuse.

Have you changed the distributor cap? A crack in the cap will cause moisture to gather and cause spark issues. Give the cap a very thorough inspection and also your wires. You may have poorly insulated boots on the wires and the spark will ground out. I had this issue and I looked at the engine at night in the pitch black. I found a plug wire arcing to the distributor base because of a bad plug wire. The truck lost power when the weather was moist. I hope this helps.

See if you have spark on at least two plug wires. If you do, but it is weak, you may just need a good tune up (plugs, wires, distributor cap, and distributor rotor). If you don't have spark or it is only on one wire, take the distributor cap off and see if the distributor is turning while someone turns the key. If it doesn't spin, you need a distributor because the bottom gear is broken or stripped. If it does spin, then it could be the coil, ignition module, crank sensor, fuse or wiring to any of these parts. It will take a lot of wire testing and diagnostics to figure out which part it is if it isn't just a simple tune up or distributor.
Hope this helps. Good luck!

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there is a number one on ur distributor cap start there ....and there is numbers on your intake that say what number ur spark plugs are ...hope this helps :)

it usually stamped on dist. cap

Most chevy 5.3 do not use a cap and rotor. Most have single coil per spark plug and wire. Trace spark plug wires to coil usually above the valve cover.

I had the same problem with my 85 cj7 this week, I relpaced the ignition control module, plugs, wires, cap, rotor and the the coil; still had no fire to plugs. the problem turned out to be my distributor, replaced it today and she fired right up. Most likely it was the pick up module in the distributor that went bad.