Ticking Noise When I Speed Up, Then Take Foot Off Accelerator

[Grandc4]

Basically I have a grand c4 1.6 VTR. 2011 with 40k miles,

 

I have only noticed it the last few weeks. But if I'm in third for instance, and I'm doing 30mph, if I speed up to 40 and then don't change get but let he car slow down by it's self I can hear a ticking noise from underneath the car, the noise only happens for about 3 secs each time, and the ticking noise doesn't happen straight away, I have to do a few miles before I start to hear it,

 

Does anyone have any idea of which it could be? If it was when I was speeding up I would hunk it would be the turbo, but it's when I slow down.

 

Many thanks

[paul.h]

First thoughts are maybe something loose under the car or a stone in one of the tyres but these noises would be all the time. If you park the car and then rev the engine, does the noise occur when you lift your foot off the accelerator - just to try and eliminate something on the engine ?

[Grandc4]

I'll have ago when I go home. It's not even a constant sound which is weird. But I do have to have the window down to hear it. I'll update you ASAP

[Grandc4]

No the noise doesn't happen when I'm stationary, and the noise doesn't start untill I'm a few miles into a journey

[Grandc4]

Took it to the garage and Sod's law the noise had stopped. But it's been doing it the last three days so I will take it back in again :(