two questions in one post both im thinking deal with the engine. 1st of all, when im accelerating weather it be from a stop, or on a highway doing 60 my car makes this wierd sound as if metal was hitting or rubbing against something, but the more i accelerate the less it happens, my wheels are straight, and the s/c is not boosting.
2nd of all, when i checked my oil before i realized the cap had a yellowish foam, and than when i looked down into the engine, i realized it was in the oil alittle bit too, mostly along the walls, my car had been sitting for just 3 hours, but when i started it up reved the engine and than looked again, the foam was gone. Should i be worried, or treat it with steam foam?