can my harmonic balancer make my engine knock at idle , when driving no knock,stop at a red light it starts knocking. take the fan belt off no knock put belt back on starts knocking sounds just like a rod knock.been all over this motor for 50000 miles and i keep thinking its the harmonic balancer any ideas thoughts or help thanks

 

KR95 sorry to hear about that, what year make and model is your car that you are having these issues with?

 

What year make and model is your car that you are having these issues with?