How To Know If Alternator Or Battery Is Bad
How To Know If Alternator Or Battery Is Bad . Engine unable to crank and stalls frequently. Clamp positive to positive on both batteries. Help diagnosing HV battery issue on 2006 Prius PriusChat from priuschat.com The squealing noise typically emanates from a misaligned alternator belt scraping past the alternator’s pulley. Clamp positive to positive on both batteries. When you turn the key, if the starter does not engage immediately, or if you only hear a click or clicking, then either a connection is loose, or the starter is bad.