The grinding noise you hear may be due to worn bushings on the starter. When the bushings wear, the armature will "drop" and grind against the inner part of the starter, causing it to rotate slowly and not spin fast enough to start the engine. Remove the starter and have it checked out at your local AutoZone or similar auto parts store. If the bushings are worn, it is likely that the armature and internal wall of the starter may be also be damaged and the whole starter will have to be replaced.
I replaced the starter but it makes a grinding nose how do i fix it
The noise is the teeth on the flywheel grinding on the teeth of the starter. Check to see if the starter is loose, this is the most common cause of that noise.
The starter drive gear will be too close to the flywheel, causing a grinding noise when the starter is engaged.
sounds like the starter is "grinding" on the flywheel teeth. Could just need a shim or two. Or the starter teeth may be getting worn.
If it is the starter that is grinding, the bushings are worn and the starter is "dragging" and not spinning fast enough to get the engine started. Replace the starter, chances are that the armature is damaged due to the dragging (grinding against the inside wall of the starter.
You re-engage the starter and you can damage the bendix, or the gear on the starter drive for the engine. It makes a grinding sound and will ruin the starter.
if it is in fact the starter, it is probably engaging the flywheel. starter may be faulty.
If there is a grinding noise, it means that the fly wheel for the starter is messed up. If the starter is grinding, there is nothing wrong with the switch. The grinding is mostly indicative that the bushings in the starter are worn. The grinding will cause wear and damage to the armature and the interior of the starter casing also. If you are mechanically inclined, you may want to remove the starter and open it for inspection. If the damage is slight, you may want to replace the bushings yourself (do the brushes too while you're at it). Otherwise, it might be wise to go ahead and replace the starter. You also ask how to test the starter. To test the starter, it is best to remove it. Use your jumper cables and clamp the red (positive) cable to the bolt where the positive cable attaches at the starter and the opposite end to the positive battery post. Clamp the black (negative) cable to the negative battery post and "touch" the opposite end to the starter casing. Before you "touch" with the negative cable, place your foot over the starter to secure it as it will "jump" when you "touch" it. The starter should spin freely and smoothly, if it doesn't, you will recognize the grinding noise. If the starter spins freely and smoothly, then the problem may lie in the flywheel as mentioned by the previous contributor. The condition of the gear teeth on the starter drive will be the most evident if there is a fly wheel problem.
could be a worn starter ring gear, most likely.
starter not engaging flywheel properly. Replace starter, Checking for damage to flywheel while starter is removed.
If the grinding noise is heard only when starting the car, the problem is probably worn bushings. When the bushings wear out, the armature inside the starter will "sag" and grind against the inside of the starter as it spins, causing the grinding noise you hear. This condition is called "starter drag". Eventually, as the bushings keep wearing, the armature will not spin at all. If you are mechanically inclined, you can purchase a starter kit and do the repairs yourself. If not, it would be wise to replace the starter before you become stranded somewhere.
take it out before you bust the fly wheel