Sometimes wont start

Fuel pump intermittent, check for fuel pressure before dropping the tank to renew pump.
Otherwise check electrical connection at battery, and make sure you do not have an open circuit.
Loss of connectivity could cause this issue, failed fuel pump sometimes work, but are not reliable.
You should see 30-45 psi at fuel rail, and the regulator should bump pressure 5 psi when reving the motor. Higher pressure indicates failed regulator.

-Before replace the alternator. Test it first. If its good
the problem is " wiring" it could be touch ground.
Or start the car and turn every thing off then turn back on
1 at a time to see any change.

Mai

Any codes,check battery and connection,tune up,coils ,module,fuel filter,air filter.

My 1996 olds Aurora did the things yours is doing I replaced the fuel pump sensor myself for 7.00 or 8,00 dollars that solved the problem. That may help.It seemed to be acting like it was out of gas I hope this helps

i just had my coil pack replaced. .. .i had a misfire in #8 then random misfires. .. i changed the #6/8 and it didnt make a bit of difference. ..

before that i thought i had a fuel leak or a leak in the air intake.
if i was stopped at a light, the rpm would move up and down slightly. . the car would act as if it wanted to leap forward. and sometimes it would just cut off at a light so i would keep it in neutral . . .at one point. it would take me 4 or 5 tries to start it up. . i changed the fuel pressure regulator then it worked ok for a minute then back to the same. ..

anyway turned out to be the whole coil pack that needed replacing

Try cleaning your battery cables - especially the bottom ends. The bottom side of cables are ignored or overlooked because they're a pain to get to. But they're exposed to grease, road grime, etc... When cold cables contract and if there's grease & dirt in there it creates resistance. You attempt to start a couple times, cables get hot and expand make contact, Clean cables with a good wire brush

Pretty good chance that most cars will run the battery down with no use over 6 months.
Put a battery charger on it first - and leave it on for a good amount of time.

possible that you have a starter going bad

It could be many things, heres a list of basics you could check.

1. wore or lose drive belt
2. bad alternator
3. bad battery
4. clogged fuel filter
5. bad fuel pump
6. clogged fuel injectors
7. faulty spark plugs or spark plug wires
8. check the timing
9. faulty ignition coil
10. clogged air filter
11. battery terminal connections loose or corroded.

Well the starter is 17 years old. Nippon Denso and Hitachi starters are prone to low voltage at the solenoid signal wire (black with white stripe).