2004 mountaineer turn key nothing other then lights radio no click nothing trying to kick over motor

What about your security system? It is a starter disable. If you remove starter relay and use jumper wire between terminals 30 and 87, the starter motor should crank. If you try that, make sure tranny is in park or neutral and parking brake is set. If it cranks, the problem is on control side of relay, right side, in the diagram. Make sure battery has a full charge.

have the head lights on and look at them while someone tries to start it...if they dim your battery is probably bad. If they don't dim you may have a bad solinoid on your starter.

sure your not turning key to accessory position ? but then key wouldn't come out. maybe ignition switch is the problem.

Possible causes, flat battery, faulty alternator, coil or starter motor,though sounds more like power problem, do you have power to lights, radio etc when key is turned on even though nothing happens.

The fault could be a faulty starter solenoid or a faulty started motor or worn statrer motor brushes.

Security is set. Lock the car up. open it with the key and turn it on. this usually resets the security. If it doesn't use the key fob while its still on and unlock it.

Make sure the key is 'programmed' for the vehicle. If you have too many keys on the key chain try just the key. If this doesn't cure the problem then I would check the main relay or the EFI fuse.

have u checked all the wire from the soinoid starter motor if ing nition lights come on put a jump lead from the startemotor possitive tothe battery and should start

Check the battery