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Did you replace it with a new starter or a wrecker starter, maybe a bad starter. check the teeth on the flywheel they maybe damaged causing the starter not to engage. you may have to shim the starter. were there any shims when you pulled the original starter off.
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Is the engine turning over with the key in the start position? If the engine is not spinning over and you hear a whining noise, the starter is not engaging the flywheel. If the engine is turning over with the starter engaged, the engine has most likely jumped time that creates low or no compression which results in the whining noise.
When buying starter motors it is essential that the starter pinion teeth are of the same pitch as the flywheel ring gear. Not all starters from the same make fit different engines because of this problem. However I would be checking that I had put the starter in the housing properly as any misalignment will cause your problem
Does the engine crank at all ? The low whine could be the starter turning but not engaging the flywheel. The clunk could be when the bendix gear on the starter makes contact with the flywheel. If the starter does not have enough voltage, the solenoid or bendix may not engage. Even tho you replaced both the starter and battery, there could be a problem with the cables or the ground connection.
The basics, your battery is used to provide power to the starter. Once the engine is running the alternator then provides current to recharge the battery and run all of your electrical components. so I would suspect the starter is not working to start the engine.
If you meant that the starter makes a high-pitched whine but does not turn the engine, that starter is bad. More specifically, its drive (the "Bendix") is bad.
If the starter makes a screeching noise as it turns the engine, like it is working too hard and is irritated about the situation, you need to shim the starter. There are shims available at the parts store that fit around the mounting bolts, between the starter and the block. They are used to ensure that the starter drive gear teeth are not too close to the ring gear. If they are too close, the starter has to work much harder as it forces the teeth to mesh.
If you meant that the starter makes a whining noise for a short while after you start the engine, don't worry. Many starters do that.
If you meant that the starter makes a loud whine constantly after you have started the engine, it is staying engaged. It is either bad and that is the source of the problem, or there is another problem (like incorrect shimming) that caused it to stay engaged, and it is now bad. The same gear reduction that allows a small electric motor to spin a big heavy engine can work in reverse if the one-way clutch in the starter drive goes bad, and the high speeds that the starter guts would be subjected to if this happened would lead to self-destruction.
Wow it sounds like that they are not shiming the starter. On general motors products a new starter has to be shimmed, so that it lines up correctly with the flywheel. This is what is causing the flywheel/starter bolts to break and the noise you are hearing. Its not a hard process, just time consuming probably why it has not been done.
Sorry. Good luck! Dont forget to rate. Thanks, James
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