Starter Repair By Mike Stimits First things first, is it the starter or the battery A jump start can tell you if youre sure the cable connections are good deptofmarketing.com Remember never short the cables together or hook them up backwards. This ruins the alternator. Also a small gauge cable wont pull enough amps get a heavy gauge cable smaller gauge numbers are heaver cables gauge is great. Bad battery cable connections are a problem. If the cable ends are loose or dirty clean and tighten them.