ok so I'm having a major problem I have a 87 n/a 7mge supra. I drove it down the street when it started knocking I checked the oil it had 1 quart left in it.I have no idea where its coming from I checked my oil and there's no metal filings to suggest spun bearings. I also pulled off my spark plugs 1 at a tyme and the knocking didn't go away. I'm stumped lol if any1 has n idea and could help it would be appriciated. you can reach me on aim at streetsleeper87 if u want to get into contact with me. thanks