My dealer is jerking me around about my alternator going flaky... I measured 13.6V after having trouble starting it, the FSM from my interpretation says 14.1-14.7, and they are now claiming that after tightening the terminals it's reading 13.9 and that is 'within spec'.
Can anybody out there go poke a multi-meter onto their battery terminals with the truck running and see what you find for extra verification please?