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Without being able to hear the sound it's hard to point you in the right direction without more details. My first assumption from what you've described would be that the noise is present only while cranking/initial starting. If this is so, there are a few possible reasons for this. 1. The starter that was put is is faulty. 2. The starter was incorrectly installed. (Some starters actually have an alignment and/or shims although it's uncommon on most cars.) 3. The starter that was installed was the incorrect starter for your vehicle. (A lot of vehicles have different starters for automatic and manual transmissions that'll look identical and bolt on but the throw of the starter gear is different and/or the gear's teeth on the starter is different and doesn't properly mesh with the ring gear. This will ruin the teeth on the ring gear on your flex plate/flywheel.) 4. The teeth on the ring gear of your flex plate/flywheel were previously worn because of your old starter and now the teeh on the starter gear are not properly meshing. (This will ruin any starter that you put in.)
Hope this helps. If you can provide any more information, I'd be happy to help you to further narrow down the problem. e.g. Year, make, model, engine size, transmission type of the vehicle and part number of the starter installed. A better description of the noise and conditions of occurrence. e.g. A rough grinding noise while holding the key in the start position followed by a hollow metallic pinging noise or prolonged whining. Etc.
If it only happens when while cranking its possible that the starter gear is failing to engage with the flywheel all the way. Have the starter tested. If the pinging sound comes after you release the key from the cranking position it is still possible that the starter solenoid is having issues or the spring for the starter gear is bad, Either way I would have the starter tested. Worst case is the teeth on the flywheel are toast.
Knocking noises like ball-bearings bouncing around against metal. Sometimes this problem can be attributed to the use of gasoline that is graded too low for maximum engine performance. Other problems that can cause a pinging sound are carbon that has deposited inside the cylinder, incorrect ignition timing or using the wrong spark plugs.
The grinding noise when you are braking is worn out pads. Metal against metal is not good for your discs - replace the pads otherwise your up for machining of the discs or replacing. That noise on start-up is common with worn teeth on the fly wheel. The fly wheel will stop in "common" positions just how the momentum of the motor works and the teeth can wear out at these spots - sounds horrid but is not "unsafe" problem is one day you may not be able to start the car if the starter cannot engage the fly wheel to turn the motor over. This is where you hear of people turning the motor over a little by hand (they usually remove the stone plate from below the fly wheel to hand crank the engine) I don't recommend this practice probably better to price a replacement and while it is apart consider any other work eg. Clutch or minor seal leaks as it is not a small job to replace the flywheel.
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 starter is bad, the drive that extends out to engage the flywheel has failed. If this has been going on for a long time, there's a chance the teeth on the flywheel are damaged, this should be checked when the starter is replaced.
It could be the starter, is it high pitch screeching, metal against metal, sound? Or more of whine? If it's metal against metal, the teeth on the flywheel ring gear might be damaged. If it's a high whine you are probably hearing the electric motor part of the stater and the "starter drive" is bad. The stater drive is part of the starter, it's the gear that engages with the flywheel gear. It is a one way clutch, it is supposed to hold when the starter is turning the engine. But, freewheel when the engine starts so it doesn't over rev the starter motor. When the drive goes bad it freewheels both ways. If you think the flywheel teeth are damaged you could try turning the engine by hand a little, WITH THE KEY OFF! Sometimes you can put a wrench on the alternator pulley nut and turn the engine a little. This will move the damaged teeth away from the starter and it might work now. Good luck.
pull a spark plug wire off at spark plug put another plug in wire lay plug and wire against metal of engine and turn motor over looking at plug for spark. as for pump noise turn key on not to start and listen for whine noise for a couple seconds. if hear whine that is your fuel pump noise. not a clear filter canister about under drivers seat on inside of fram