Silly Ticking noise when car turned off

[ian_jemo]

Hi all

Sometimes when I turn my car off I get a silly ticking noise coming from under the bonnet I not to sure where from. Just seeing anyone know what the problem could be??

Thanks

Ian

[sal_s2]

Most likely a cracked exhaust manifold, contracting whilst cooling down

[ian_jemo]

If it is the exhaust manifold is this a serious problem??

[alg]

Normal not a sign of exhaust manifold. Unless all my previous cars had cracked manifolds !!

[WabTheKing]

could be the relay for the fan, mine used to tick

[alg]

Usually its from cooling alloy.....the head, the calipers, discs, the exhaust system etc which expand then contract as they cool.
In the present weather my RS2 ticks away for a good few minutes after arriving home.

[SteveH]

Yeah, likely to be heatshields, exhaust, other hot bits cooling down. Quite normal and nothing to worry about...famous last words!

[Crawford_S2]

Mine does all of the above but also the afterrun pump to circulate the water after the engine is switched off can make a sort of ticking noise!

[Crawford_S2]

Or it could be the bomb Only joking!

[ian_jemo]

Yeah I get the normal ticking sounds from under the bonnet because of the heat but the sound I'm hearing is a continuous ticking for about 5 seconds, i don't get it all the time. I was just interested in knowing what it could be.

I think you right it probably is the afterrun pump. The noise doesn't stay on for to long, I don't think its a serious problem.