problem starting my 6.2
 

now i know ya'all probally think the 6.2 diesel is junk but i like it. but i cant get it to start either. new starter, new solinoid, new wires, everything.put key in buzzer sounds, lights on but wont crank. test light shows power at leads w/ key on but still no rrrrr-rrrrrr-rrrrr.ne sugestions?