ticking.

[saxo_boi]

when you turn your engine off and leave it after using it why does it make big like cracking sort of sounds does anyone know? hard sound to explain though!

thank you!!

[saxo_boi]

so what actually makes this sound?

[MORELLO]

Metal components contracting as they cool. Dark coloured plastic things, such as gutters make a similar sound as they expand on a hot, sunny day.

[saxo_boi]

cheers, always wondered what it was!