My '99 Legacy is far from quiet, but yesterday I heard a new – and somewhat alarming – noise.
Roughly two-thirds of the way through a four-hour drive, I started to hear a rattling or grinding sound coming from the front of the car, perhaps closer to the driver’s side than the passenger’s. It sounded as if a tin soup can or paint can were hitting the road, but when I popped my head under the car, nothing was hanging loose.
I hear the rattling sound as I begin to accelerate, and only when I have my foot on the gas – when I let off, it’s perfectly quiet. What I haven’t been able to determine is whether the noise goes away after I reach a higher speed, or whether the sound of the usually loud engine drowns it out. The noise is most acute around 1500-2000 rpm whether it’s in gear, or whether it’s in neutral and I’m revving the engine.
Any thoughts on what this might be? It would be greatly appreciated!