Spent the winter reinstalling the a/c finally finished, put in a dual fan setup, all ac components are in place, the a/c worked great, I made the mistake of not t replacing the tensioner pulley it seized and shredded the belt. The 130 amp alternator is not working now it does charge at at 5k rpm I’ve taken it to 2 alternator shops they say it’s good, it’s driving me crazy?