i have this nasty noise, when 2 or more people sit in my car. and i think its pulleys...

i press accelerator and its knocking.

what should i do?

 

That description is way vague man.

When your AC is on? When driving? Idling? high power stereo?

 

It only happens when multiple people are in your car, versus just yourself?

 

ok well, here what it is...
when i drive alone its not knocking. for example on highway or big streets.

when i turn on turns, its knocking..

including me and 2 more people, its knocking so lound i can hear it inside, even when music is playing, but not loud...

1st i was thinking its colivers and my suspension,
but what dose shocks have to do with ecceleration?

yea....and i've been asking some people around, as far as they know its pulleys