My 99 kia sephia wont start. even wont start with a jump. it sounds like its going to start but it wont . it has gas

Look in the fuel pump/filter area?

You should pull the ECU codes for more info.

This sounds like an ignition switch issue. It is located on the opposite side of the ignition lock cylinder (the part you put the key into) and can be purchased for about $20-30. If you are handy with a volt/ohm meter, I can give you directions on how to test the 'start' wire to see if it is getting power before you buy a replacement switch.

Bad Evap System Vent Valve

Have repair shop evap smoke test & replace
the proper & failed solenoid

fuel pump inertia switch same thing is going on with my car and thats what im trying to locate now

It sounds like a bad clutch. It is the clutch if you can change gears with the clutch out and the engine running.

You refilled the water so where did the water you lost go? I suspect it is in the engine combustion chamber. You need to see if you have a blown head gasket and to see why it overheated before trying to start it. Remove all spark plugs and turn if over. If coolant blows out of the cylinders you have a blown head gasket.

I would check ignition items or fuel delivery if it just died on you. It wont be the battery unless it was dead and the alternator stop working.

that is the alternator and vehicle power supply fuse, did u jump this wrong? u will need to replace this fuse before the car will start.