Yes a humming out back could be a fuel pump failing. I have gone through 2 in my 1993 Century - 150 k miles - They have to drain and drop the tank to repair
when the pump is going out it will make a humming noise from the bearings even if the resivore is full.
wheel bearings are going bad, need to change your hub assembly
the most likely cause of that would be the power steering pump failing.
A failing alternator with sticky or worn out brushes.
old fuel filter
You can try replacing the ballast as the humming noise may indicate it is failing. Additionally, check if the fixture is securely mounted to reduce vibrations, which can cause humming. Finally, ensure the light bulbs are properly seated and not loose, as this can also contribute to the humming noise.
The bearings on the blower are failing. You will need to replace the blower.
There are several reasons that can cause your 1995 Buick Century to quit running. The most common reason is a lack of fuel. A bad fuel pump can cause the engine to quit running.
i have a 1996 buick century just came back from mechanic head gasket is gone and there is anti freeze in my oil i guess if you had water in your rad then you would have water in your oil.
Certain types of tires may cause a brief humming noise after your initial acceleration. The transmission may also cause a brief humming noise.
A failing wheel bearing is a likely cause.
mabye the O2 sensors