when u turn ur engine off whats that clicking sound?

[adam2007]

u know when u turn ur engine off car, sometimes after 5mins u hear that clicking noise whats that? i heard maybe a EGR valve but not sure any idears? i have heard it on loads of random cars in carparks when walking past

[xpensive]

u know when u turn ur engine off car, sometimes after 5mins u hear that clicking noise whats that? i heard maybe a EGR valve but not sure any idears? i have heard it on loads of random cars in carparks when walking past

If you drive a Koenigsegg, like I do, that's the typical sound after the aluminium engine-block has adapted its
thermal expansion to the carbon fibre body, when the anti-torque pins lock into place.

[tarzoon]

If you drive a Koenigsegg, like I do

can you explain this a bit better?

[CMSMJ1]

the engine "ticks" as it cools down. Just the metal relaxing after a good session.

My Koennigsegg does't tick as much as my Bugatti Royale...

[xpensive]

If you drive a Koenigsegg, like I do

can you explain this a bit better?

Christian von Koenigsegg built me a special edition, called CCX^2, don't know xactly what he meant by "squared" though.

[tarzoon]

koenigsegg^2 =

1 engine
4 seats
16 wheels
1 steering wheel
4 pedals
1 handbrake
4 deca-whatever-dral doors
9 mirrors (1 internal, 4 external) - sorry about my maths here, still trying to understand it

and it goes on

[Pandamasque]

That's even more annoying if you have a time machine like I do. I ticks all the bloody time.

[donskar]

If this sound is NOT the heated metal cooling (it probably is), then it could be the fuel system releasing pressure.

[Giblet]

In some cars you hear oil dripping onto the shallow part of the oil pan as well, which is a louder rhythmic clicking.

[xpensive]

koenigsegg^2 =

1 engine
4 seats
16 wheels
1 steering wheel
4 pedals
1 handbrake
4 deca-whatever-dral doors
9 mirrors (1 internal, 4 external) - sorry about my maths here, still trying to understand it

and it goes on

I don't know, perhaps Christian was referring to the driver?

[alexbarwell]

If its got 16 wheels, we might have seen it on Thunderbirds.
The ticking on mine is usually the exhaust cooling down, there are a couple of valves that motor shut after a while, but the constant pink-pink noise is the exhaust - when hot the original used to just tap on the rear valance...

[Giblet]

Mine lets out a sigh of exasperation and asks me not to drive anymore.

[alexbarwell]

Or its the sound of all the loose bits of metal falling back into the sump...

[Giblet]

My loose 'bit of metal' was the valve head, that had broke off when the timing belt snapped loose, as the piston crashed into the open valves.

I never found the valve head, but the hole in the side of the block, and the top of the piston looking as beaten as an anvil was a clue as to what had happened.

I love Honda engines, bit those timing belts are whores if you don't change them regularly.

[ISLAMATRON]

The've switched to timing chains now havent they?