Q: Horrible grinding issue around starter/flywheel

asked by on September 11, 2016

I just replaced the intake gasket/thermostat/radiator cap. Temperature problems solved. Now my truck makes a horrendous metallic grinding noise coming from the starter and fly wheel area. I pulled the starter and testing it by directly hooking it up to the battery. It seems to be working correctly. However, I do see scrape marks on the metal shield around the starter's teeth, but no damage to the actual teeth. What does this mean?

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