I have a 1997 ford explorer, after putting a new a/c compressor on it, and after driving it for about 20 minutes, i wont crank back up, i put a new starter, starter coil, and a new battery on it but it still wont turn over, it's just a clicking noise coming from what i think is the master cylinder which is located right beside the starter coil, and when my drivers side door is open, when i sit down in it or the truck shakes a little bit, the interior lights flicker, i've been working on this thing all day and cant figure out what it is, does anyone know what this could be?