I recently took my manifold off to get to the knock sensors, i finally got it all back together, engine now sounds loud and angry and i have a hissing noise coming from around the crank case when i turn the engine off, it sounds like air escaping under pressure, any ideas, its probably also running and sounding a 100% cause i punched one of the fan blades off disconnecting a hose, was going to get the car running and than, sort that fan blade out at the wreckers.
rough idle and hissing
