× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
Re: '09 Suburban 5.3 'LC9' flex random engine knock
Posted to Technical Discussion Forum on 10/12/2017

Steve, in the past I've seen cracked flex plates around the crankshaft mounting bolts cause all sorts of noises. Login to read more.