Two possibles:
It needs to be shimmed. Chances are if it is a replacement starter it needs to be shimmed. you can buy shims at almost any parts store, they go between the starter and its mounting point on the block. usually one will be sufficient.
also possible you have burrs on the flywheel or starter gear that are hanging it up, should be able to tell that when you pull it to add the shim.
I recently had a starter grinding problem with my boat which has a Chevy 305 engine. You could lose a lot of time trying to find the correct shim thickness, not to mention you have the possibility of breaking a bolt off in the engine. I fixed my problem by having the starter bolts just loose enough to move the starter with my hands while I had someone bump the ignition switch. I had to move the nose of the starter down and it corrected the grinding.
This usually means a sticking solenoid that keeps the starter engaged after activation. The fix is to remove the starter and clean but my s-10 starter is a closed unit so you will have to replace the complete starter and solenoid unit.
Just went thru it with a friend's Lincoln the starter relay was sticking tapped on it to stop!!! What an awful sound!!! Replace starter relay on fender well!1 hope that helps!!
There are several things that can keep a Chevy Tahoe from starting including the starter being bad, a dead battery, an alternator, or a fuel pump.
The brake pads are worn out and need to be replaced. The grinding sound means your brakes are about to stop working.
spray pam on them
To stop a standard transmission from grinding into third gear, check the level of the transmission fluid. If the noise continues, consult a mechanic.
Possibly the lock-up torque converter solenoid is sticking. Disconnect the wire to the lockup converter.
Teeth grinding can be a problem, since it removes the protection on your teeth. There are available treatment options that can repair the damage. There is also treatment to get you to stop grinding your teeth.
Mine is doing that. I have a '92. I have not looked into the matter yet but I believe it is a wheel cylinder that has a sticking piston.
how old does chewing gum have to be before it stops sticking on shoes
butter or oil
Get a new jumper, that should not happen!