Looking for troubleshooting help. 92 S-4 with 46k miles. Metallic rattling quite near the cooling blades of the power steering pump(?) on the top front of the engine. Faster engine speeds quiets rattling. Any one BTDT. Long shot: Had new guys change oil the day before. Oil bottle lid (or other item) fall into cover? Do the pulleys come loose? Any suggestions welcome. Michael C.