Slow Thud from underneath the car
Posted: Sun Oct 22, 2017 1:58 pm
Hi all,
Just joined and just purchased an 2.7 04 plate.
Just wondered if anyone has experienced this. When first starting the car a noise which I can only describe as a continuous knocking sound ( about a second delay in-between knocks) starts from underneath the car near the rear.
Seems to go away when driving but after stopping and turning the engine off it comes back for about a minute. I've taken it to a mechanic who has never heard it before and seems to think its coming from the petrol tank.
I found this video on YouTube, this is the identical noise to what mine is making. https://www.youtube.com/watch?v=GxxcPHvUUg8
Just joined and just purchased an 2.7 04 plate.
Just wondered if anyone has experienced this. When first starting the car a noise which I can only describe as a continuous knocking sound ( about a second delay in-between knocks) starts from underneath the car near the rear.
Seems to go away when driving but after stopping and turning the engine off it comes back for about a minute. I've taken it to a mechanic who has never heard it before and seems to think its coming from the petrol tank.
I found this video on YouTube, this is the identical noise to what mine is making. https://www.youtube.com/watch?v=GxxcPHvUUg8