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Re: Grinding noise when trying to start car.
Hello first thing you need to do is take your starter out the starter drive gear either has busted teeth or the flywheel does with the starter removed mark the flywheel with chalk crayon so you no were you started from look at the teeth good keep turning the motor by hand checking till you come back to the original mark you made if there are no chips or missing teeth look at the look at the starter drive teeth there most likely busted or chewed down replace the starter goodluck please rate
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if its a grinding/knocking type sound then it could be the cv joint gone bad.the side that makes the noise when you are loading during turning(turning left you are loading the right cv joint and vise versa)that is the side the bad joint is on.it will happen whether or not your foot is on the brake.if the noise happens as strickly a grinding noise like when brakes are metal to metal when applying the brakes then it could be brakes need replacing.also have seen were if the inner fender is loose or oversize tire is on it can rub sounding like grinding.
Starter has teeth that mesh with teeth on the flex plate . most of these type grinding noises are do to missing teeth on the starter gear or flex plate missing teeth .Does your vehicle have a automatic transmission ? Have you had starter replaced lately ?
that sounds correct what happens is the starter still tries to engage the flywheel and grinds the teeth off both. Replace switch then worry about starter flywheel if it starts fine don't worry about it you may have saved it if you didn't let it run that way long
It could be the starting motor is faulty or was not installed correctly, particularly if you are finding it turns over the engine slower than it should (dragging and dragging down the battery voltage). When starting the car, the teeth must mesh properly with the ring gear or all sorts of strange things will eventually happen. Alignment is controlled by shims on the mounting bolts and if they are the wrong ones or missing, also usually bad news.