Just wanted to say thanks for the help last night with my rattle issue. had not thought about spark knock until you mentioned it, put new plugs in tonight and took the the truck out for a drive. MATTED it a few times to try and create the rattle and much to my pleasant suprise,i got no noise. Hopefully that issue is cured. Thanks again!

 

Cool! Glad to hear it worked. And... You are quite welcome. Happy to be of service.