Anyone come across this noise my car is making? Only seems to happen when the engine has a load on it. Mainly accelerating but now on deceleration also. Everything looks tight under it..

https://youtu.be/nCCluAw8uB4

Any help would be great, it's driving me nuts haha

 

All I can hear is the exhaust.

 

It's the clicking/squeaking noise

 

i noticed every time it happened , the ac clutch was engageing and disengageing ,if the new tensioner doest fix it i would look at the ac clutch maybe