acceleration knocking

[laik]

Hi, new here, but not newbie with my QX56... I ever noticed some knocking after hard acceleration - seems like valves, but it does not correspond with my RPM´s , and sometimes, it comes from rear end too, sometime booth end are "knocking..." Any idea what I´m hearing?
Thanks!

 

[marctronixx]

since we cant hear it over the internet, this will be difficult to say.

you are welcome to take a sound recording and post it here for those who may be able to help and offer an opinion.