2012 3.6L pinging/knocking
I'm hoping that others here can do a quick test for me. I have a 3.6L 2012 JGC Laredo. Under normal driving load: going up a hill and usually around 2K RPM I get what I would call pinging or knocking. I can't hear it while idling or normal flat running speeds and it's more noticeable with the windows up.