CHEVROLET IMPALA NOISES KNOCK

I Just Changed My O2 Sensor And The Next Day My Car Starts Making A Knocking Sound And Doesnt Drive Well At All. But Before I Changed The...

My 06 Chevy Impala Makes A Knocking Sound Coming From The Engine When Idling, And I Dont Know What It Is, How Can I Fix That Problem...

When I Accelerate After Stopping, I Hear A Knocking Noise Coming From Underneath. Whats Wrong With My Car?

Can I Use 10w 40w Synthetic Oil Instead Of 5w 30w Conventional Oil, Will This Damage My Engine Our Cause Any Knocking