well lately there is a nasty squeeking noise coming from the engine bay. I'm almost positive it's the alternator. The only problem is, it works great. Time for a new one?

 

Could be a worn out belt. Thats what my squeak was from.

 

I had the same problem. Went to napa and bought bearings. They sold me the wrong ones. I already had my alternator apart, so I just greased my old bearings. They were dry from my car sitting so much the last few years. No more squeaks.

 

The accessory belt is a common source for engine bay squeeks. Buy a can of belt dressing (around $3) and use it as a diagnostic aide. Spray some on the belt and see if the noise goes away. If the noise is gone, then you know it's the belt and replace the belt.

 

Im willing to bet its the tensioner....

 

Im willing to bet its the tensioner....