Starter wont stop spinning

Your description is a bit misleading. Is the starter spinning or is it just making a clunking sound when the key is turned to the start position? If the starter is spinning and the engine isn't, you have a bad starter drive or there are teeth missing on the flywheel (or flex plate if you have an automatic transmission).

if the engine is turning but not starting, fuel pump or possibly the fuel filter is clogged. if you have no turning the engine over with a no start, more than likely its a fuel delivery or your coil packs are not puting anything to the plugs. coil module, coil packs themselves, or fuel filter. beyond that you would need to take to mechanic.

Most likely a bad connection either positive to or from solenoid,bad ground or the starter needs replacement.

Turn over manually? Is this jumping the starter with a wire or screwdriver to crank the engine or turning the engine with a wrench?

THATS A TYPICAL FORD DESIGN THAT YOUR STARTER IS GETTING READY TO GO OUT. EVERY FORD THAT THE STARTER WENT OUT ALL OF THEM DID THE SAME THING.THEY ALWAYS WORN YOU.

Could still be a number of things. If the jump works, first order would be to get the system checked. That would eliminate a couple of possibilities of alternator, battery, and wiring. It allows all the items listed to be tested under a non-load and loaded condition.

If those are good then start leaning towards the starting system. Starter/starter solenoid, ignition switch on column.

Never hurts to have a battery charger around or one of the new starter amps that are available.

get a multimeter and test battery output, if more than 13v when you turn key to crank position if below then battery may be faulty and not holding charge, check starter relay and fuse, if ok also check for any parasitic draw from any accesary that might draw down battery when engine not running

Can you explain more so I can help. What do you mean still wont turn on, engines doesn't start or starter motor doesn't turn. Have u taken out a spark plug and connected it to the cable put the end of the spark plug to a ground and make someone turn on the engine for a few seconds you should see some blue sparks. Carefully use gloves. If no sparks, spark plug is bad next thing to check instead of putting the spark plug in the cable put Philips screwdirver put the screwdriver near a ground not touching about one inch make someone turn the engine for a couple of second you should see the spark jumping from the screwdriver to the ground, If there are no sparks ignition coil or spark plug cables are not good. But u say u changed ignition coil so maybe your cables are not good. There is a connector near the ignition coil disconnect it and turn ignition switch on measure the voltage you should have in between 12vdc + or - .5 vdc if no voltage present there is a blown fuse, Check for it

Sounds like the starter drive is shot, best thing to do is replace starter with new or rebuild.

probably the vehcile speed sensor