You were driving around with the cap off for 2 weeks? How low was the oil when you filled it? Was it knocking during those 2 weeks, or just after you refilled the oil and coolant? By itself, having the oil cap off shouldn't cause a problem besides a little oil maybe spilling out. If the car was overheating, it may make more than just a bit off oil shoot out. Just don't drive it until you figure out the knock. My mom ruined her 89 toyota because her oil light came on, she kept checking her tranny fluid (doh!) And the car, which did burn a bit of oil, eventually burned the majority of it up, her car started knocking, and then she locked up the motor! Not fun stuff.
Sunday, December 17th, 2006 AT 11:50 AM