"Take a look at the starter so
"Take a look at the starter solenoid on the engine. Usually four connections. Two large wires, two small ones. Test one, with the battery connected, very carefully jump one large terminal (starter lead) to the other large terminal (12 volt source) A brave mechanic uses plier handles, I would recommend battery jumper cables. If it still doesn't turn, and the battery and cables aren't to blame, you have a starter issue. Since your key causes a "click" at the solenoid, if test one makes the starter run correctly, and the solenoid clicks but doesn't run the starter, bad solenoid."