An alternator is one of the most important parts of a car. A good and effective alternator helps the battery to work effectively and boosts the performance of the car. But, when the alternator starts making any kind of noise, it is something you need to worry about. If there is any problem with the alternator, it means that the working of the battery will also get highly affected. So, if you want to save yourself from spending your bucks on this, make sure to take good care of the alternator of your vehicle.
In this article, we will be discussing a few ways that can be used to how to fix a squeaky alternator bearing making a squeaky noise. For this, first, we need to go through the various reasons that affect the swift working of the alternator and make it noisy when being used. Once we have discovered the reasons, we will then be going to discuss the several ways to fix it.
Reasons for the alternator making a squeaky noise
Loosened bolts of the alternator
The most common reason for your alternator being super noisy while working can be the loose bolts. If the alternator is not fixed properly with some tight and fixed bolts, when the vehicle will be running on the streets, it will make a lot of sound due to the jerks and the vibrations.
If you have been facing this issue with your vehicle, you need to check for the bolts of the alternator and if they are loose, fix them tightly and then see the difference. Loose bolts are one of the major reasons for the alternator making a very squeaky noise when the vehicle is running.
Wearing out of the bearings
If the bearings of the alternator are worn out, there will be a very squeaky grinding noise made by the same. The rotor present inside the alternate rotates freely due to the presence of these bearings only. And when they are worn out due to continuous use, the rotor is not able to rotate properly and smoothly and this results in it making a lot of noise.
The bearings of the alternate can get worn out due to many reasons. The regular and rigorous use of them and the accumulation of gunk and dirt in the same can adversely affect the working of the bearings and can make them non-functional. If the bearing is not functioning well, the alternator will face a lot of problems in working correctly. This is the reason that the bearings are to be changed after being used for a lot of time.
Faulty alternator belt
The belt that helps the rotor to spin inside the alternator is called the alternator belt. If there is some fault with this belt, the alternator will not be able to deliver a good performance. The belt can suffer through several issues such as it can be too loose, too tight, or worn out. And this will affect the performance of the alternator belt that will in turn affect the performance of the alternator. It can make the alternator noisy and difficult to work.
These are the three main reasons behind the alternator being super noisy while being used. Before going ahead with the fixing of this issue with your vehicle, you first need to identify what is the root cause of the problem. You need to analyze your vehicle’s alternator and determine what part of it is faulty and replace the same.
How To Fix A Squeaky Alternator Bearing-5 ways to fix an alternator
1. Try to inspect the bearings
The bearings of the alternator need to be inspected to know if there are some issues with them and that is leading to a noisy and squeaky alternator. You need to follow the steps mentioned below to check the bearings of the alternator-
Step 1: First, you need to switch off the engine of your vehicle before opening the hood of the car. Once the engine is cooled down, only then you should start the inspection of the alternator bearings.
Step 2: Now locate the alternator in your car and try to rotate it with your hand.
Step 3: While rotating, try to find if there are any issues you can notice on the bearings. Keep your hand on the bearings and check for any scratches, loose screws, etc.
Step 4: If the bearings show some problems like working roughly or making some sort of a sound when or if they suffer any major scratches, take them out of the alternator properly.
Step 5: After taking them out, see if the alignment is wrong, align them properly in order. And if you see some major scratches or nicks on them, make sure to replace them with new ones. Worn out bearings tend to cause several problems like producing a squeaky or whining sound.
This is how you can inspect as well as change the bearings if they are causing any sort of issue to the alternator. Worn out bearings will affect the performance of the alternator and need to be changed on time.
2. Fix the belt if needed
The belt of the alternator can also cause the bearings to make a lot of noise. If the alternator belt is just too tight or is too loose, it will affect the swift functioning of the alternator and this will result in the bearings making a lot of noise. If you are facing such an issue with your vehicle, make sure to check the belt of the alternator if it is too tight or too loose and whether you need to replace it.
The wearing out of the belt can also be one possible reason why the alternator bearings make noise. If needed, you can replace the belt, and this way you will be able to fix the issue of the alternator bearings making a lot of noise.
3. Check the bolts of the alternator
If the bolts or the screws of the alternator and the bearings will be loose due to any reason, it will affect the normal working of the same. The bolts that are used for the fixing of the alternator with its bearings and other components tend to get loosened with time and this is due to the continuous use of the same. If you have been using your vehicle a lot and have not paid any attention to the maintenance of the alternator bearings, it might be possible that the screws have loosened up and this is giving rise to the unpleasant squeaky noise made by the alternator bearings when used.
Once checked, you can tightly fix the bolts and can replace them if needed as per their condition and then you will be able to get your hands on the smooth functioning of the alternator and the bearings of the same will not at all make any noise.
4. Replace the bearings if needed
If the alternator bearings of your vehicle are making a lot of noise when being used. The best option to fix this issue is to replace them with new ones. Mostly, the squeaky noise that is produced by the loose or worn-out bearings can only be fixed by replacing the alternator with a new pair of these. If the alternator is not able to work perfectly and is making a lot of grinding and whining noise while working, the best way to deal with such a situation is to replace the old ones with a new pair.
5. Take your vehicle for servicing
Another reason why your vehicle’s alternator bearings are making noise when used can be the lack of maintenance of the vehicle. To deal with the same, you need to make sure that you are taking your vehicle for a proper factory servicing wherein all the parts of the vehicle as well as the engine are repaired, replaced, and oiled well for your vehicle to deliver a smooth performance. This might fix the issue of the bearings making noise if there was just the need for proper cleaning, repairing, and oiling of the vehicle.
These are the 5 effective ways that will help you solve the problem of your alternator bearing making squeaky noise when used.
Conclusion
A noisy alternator can be a tough ordeal when you are driving your vehicle. It will not only irritate your but can also affect the working of the battery adversely and can damage it permanently. To make sure that nothing of this sort happens, you need to fix the issue as soon as it arises. Whenever you notice that your alternator bearings are making a lot of noise, make sure that you identify what is the reason behind it and fix the same using any of the above-mentioned ways.