If it gets too low on fluid, it’ll whine a lot This is what a bad toyota alternator sound like. Check the fluid level and fill it back up to the factory fill line
Car Alternator (Bearing, Whining, Humming) Noise - VehicleChef
The whining sound should change when you turn you…
A whining sound from the engine bay that changes pitch with engine speed often points.
A whining noise that changes pitch with engine speed is the classic sign of failing alternator bearings Sounds like it could be the a/c tensioner/idler pulley Take off the belt that goes to the a/c and see if the bearings spin. 2002 subaru forester s n/a, just started making whining/screeching noise when i accelerate
Learn what alternator whining noise usually means, what to check first, likely fixes, and when it needs fast repair. Whining or grinding noises can indicate alternator problems The noises often sound similar to serpentine belt or pulley. Make sure your battery has a relatively low series resistance
The battery is a filter for alternator noise
The cause of alternator problems comes down to a few common issues Alternators will wear out over time When you hear these sounds, the best thing you can do is pull over and contact your authorized subaru dealer My first inclination is power steering pump or alternator
It could also be bearing failure on one of the pulleys Similarly, an alternator that isn’t properly secured can lead to poor performance and even complete failure over time If you have a squeaky belt on a cold start, or when you turn your steering wheel, a loose. In my 17' forester i observed a strange noise coming from the alternator or near it when vehicle is idling
