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QB93Z · 04-30-2009

I used to have to do this to the starter in my Trans Am until I got around to replacing the starter (outdoors, in the snow). It is caused by a dirty commutator that has dead spots where the electricity can't flow. The mechanical agitation (smacking it) moves the rotor slightly and allows current to flow.

Jim

04-30-2009	#5
QB93Z Join Date: May 2007 Location: Westminster, Maryland Posts: 3,684	Re: Could someone explain this device>>> I used to have to do this to the starter in my Trans Am until I got around to replacing the starter (outdoors, in the snow). It is caused by a dirty commutator that has dead spots where the electricity can't flow. The mechanical agitation (smacking it) moves the rotor slightly and allows current to flow. Jim