If you notice a squeaking, squealing, or an irritating noise coming from your car as it runs, it may be coming from your alternator pulley. Not only is this noise annoying, but a slipping or loose pulley could mean bring other problems in the future if left unchecked. In this article you will be thought how to troubleshoot your alternator pulley to stop the noise. It’s a simple method that you can actually carry out even in the comfort of your home, without incurring much cost. So, instead of heading to the nearest vehicle repair shop, give these instructions a shot
1 – KNOW THE SOURCE
This kind of noise may come from your either your fan belt, alternator pulley, or from the modern serpentine belt, thus you will have to figure out which one is the cause. A good way to know if it’s the alternator pulley specifically is to listen for whether or not your car wails even before you touch the steering wheel. You may also check which belt is the problem by applying a few drops of brake fluid on the running engine. If the belt or pulley quickly goes silent, then you know what needs attention. Fortunately, whichever of these belts is the cause, the rest of the steps for fixing them are still the same.
2 – Do the Initial Inspection
Find and thoroughly check the noisy belt. Turn off your car and press down on top of it. Be sure to leave some limp and let the belt decrease an inch. Otherwise, when there is more air on it, the belt may require being tightened or replaced to effectively get rid of the noise.
Do check if you see that the belt or pulley is broken and damaged during your inspection. In this situation, do not proceed to the next step but instead go directly to the mechanic to have it changed entirely. Also, if you see that the belt or pulley is extremely loose, where you can turn it more than half of a 360-degree turn, then you should let a professional fix this for you as well. Your solutions might not be effective if the belt is too loose.
3 – Apply Spray
Turn the car on and apply the silicone spray or belt dressing onto the affected area while the engine is running. Observe and listen to the engine’s sound, and if the noise continue despite the lubricant, move to the next step.
4 – Apply Soap
When applying the soap, be sure to turn off the vehicle; do not touch anything if the engine is still running. This is to avoid accidents. Then, apply a nickel or quarter-sized quantity of dish soap on your fingers and spread in into the side and inner area of the noisy belt or alternator pulley. Coat the affected part as far as your fingers can reach. Then, do check for the noise again once your start the car. The result should be quiet compared to earlier.
These troubleshooting tips are not permanent solutions and will not fix any non-functioning part of the engine. If the noise persists or returns and you can see smoke coming out from the belt or pulley, then take your vehicle directly to the nearest car shop and let the mechanic take care of it.