Turns over but will not start ,,,, pit a lil gas in the carb still no start
can someone point me in the right direction ,,, it was running fine and then it wasn?t , it has never died and never cranked up like this , it has always cranked up but this time I have changed the distributor cap the rotor and the coil plus the icm under the distributor so I?m at a stand still now

 

Three basic things are needed for an engine to run; fuel, air, & spark -- but it all has to happen at the proper time and with proper compression.

First off, you will want to check that you have nice blue spark at the end of the wires. You can do this by using a spark tester or by simply grounding a sparkplug onto the engine with it plugged into the wire. If you have spark, move on with checking compression, then timing. If no spark, then we could have to work backwards in the ignition system. I say "could" because it is possible that the timing chain has jumped and the valvetrain is now out of time with the crank. If that is the case, a compression test would tell the tale there.

Compression... While it would be odd for compression due to wear in the cylinders or valves to be the cause of this concern all of the sudden, a timing chain issue would definitely cause a compression related event failure. The 2.8L v6 is a non-interference engine so even if the timing chain jumped, you are not in for valves becoming intimate with pistons requiring engine teardown. The original cam gear in the 2.8L engine had nylon teeth around a metal core and liked to come apart. I would hope that somewhere in your engine's life it had been replaced, but who knows at this point.

If you need to check that the spark is properly timed using a timing light... Because the engine is not running, you can start off with just disconnecting the vacuum advance & plugging the vacuum line at the distributor. Then mark the line on the balancer and identify your timing marker on the front cover of the engine so you know where to aim the timing light. While cranking with the timing light attached to the #1 spark plug wire, you should see the spark advanced at a base timing of 10-14 degrees before top dead center (BTDC).

I'm not sure if the loan a tool program still exists at the chain autoparts stores, but Autozone and other stores used to loan out things like compression testers & timing lights years ago.