97 ford explorer wont start

You have power but it won't turn over.means no power to starter solenoid. First check the wire connections then you need a volt meter to se that power gets to it.if it getting juice but Not cranking. You need a New starter......easy if you have tools.. Its two 5/8 bolts and a couple 1/2 nuts on solenoid mounted to starter. Take old starter to parts store to save money for core deposit. And the noise is not the belt. Its bearings going out in alternator or the ac motor.

yes, but check all the pulleys, idler pulley and tensioner can go bad too.

So i first check the battery connection. Noticed it was loose and didnt have any tools, so i used a key ring to wrap around the cable and make a connection to battery. Turned the ignition to on position and pressed a knife against starter relay. Car started fine. Did it one more time an hour later, drove for 20 minutes. Tried starting car with key and it started. Havent had a problem since. Drove back home and it still starts. So it must have been connection to battery. Thank you.