What would cause a squeaking noise from the left front wheel area?

Answer 1

Many brake pads have a "warning indicator" which will squeak when the brake pads start to get near the end of their life. This "warning indicator" is usually nothing more than a small metal tab that protrudes out from the side of the pads backing plate pointing towards the brake rotor. As the pad wears, the distance between the metal tab and the brake rotor begins to shorten until a point is reached where the metal tab actually comes in contact with the break rotor. This causes the squeak as a warning to the driver that the break pads are low.