No power ig when turn key

If you turn the key, what happens? If you hear a clicking noise then it might be the starter other wise it the battery.

check connection and wires at battery for damage or corrosion if good check for power to ignition switch if no power check for damaged or shorted wiring if good turn key and check if power going to relays or accessory's at fuse panel if no power switch may be bad

Dead batteries have enough power to turn on the lights you mentioned but under load (cranking ) there will be nothing. have a load test done on the battery to check for failing cell

If no movement of the engine happens at all, then please check the following:

1) Battery voltage. You should have 12.5 volts and over. Try turning on the headlights and cranking. If they dim considerably, then your battery is likely flat and may need charging/replacing.

2) Battery voltage is fine, but nothing happens: Is there a clicking when you turn the key? If so, then check the starter motor. It's likely failed.

3) Battery voltage is fine, but there is no clicking when I turn the key. Check voltage to the starter motor solenoid on the top of the motor. If it is receiving power when you turn the key to crank, yet not moving/engaging, then replace it.

4) Battery is fine, but no power to starter motor and/or solenoid. Check all battery connections, leads and connections to the motor and engine body.

Could be a bad alternator.. It may not be holding charge. Or your starter could have failed.

Though I've had the same problem and it was a dead battery in my vehicle. Had enough power, but to keep the car on..

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.

Check battery full charge, battery terminals are clean, cables aren't cracked, broken or corroded and alternator first.

Which your having replaced your starter with new already. If you're still getting nothing it sounds like a bad ignition switch.

They wear normally and need to be replaced. But as a helpful hint don't place excess keys or weighty trinkets on your ignition keys.

They wear on the seating of the key in the ignition and often promote failure in the ignition from bearing the dangling weight.

Recheck all your connections, battery. starter, look for fuseable link on small wire going to starter. Might want to chk.that wire with test light when key switch is in start position and see if it lights. If it does not light might be starter switch under dash on steering colume.

You probably caused a short circuit when you changed the light. Change fuse #14. Next time, don't turn the lights on until you are finished changing the lights.