Originally Posted by SleepWarz
Wow. Just wow.
First people questioning surface rust on the exhaust manifolds.....
Sorry didnt want to come off sounding mean but some of the questions around here just stun me.
The sound you are hearing is what every car does when its turned off. Due to the excessive heat of running your car metal involved with the engine expands, the sound is the metal cooling down and shrinking. Most likely a heatshield or your cats.
Sorry, but you are incorrect.. I hear it too... I know what cooling metal sounds like it... this is not what this is! it's like someone dropping a marble in a plastic box... happens about 5 to 10 seconds after turning the car off... Sounds kind of like a relay...