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International Automotive Technicians Network
Re: Timing Chain Noise
Posted to Technical Discussion Forum on 1/11/2018

Right, passenger timing chain has broken chain cassette/ guide is what is sounds like. It is a common problem on 4.0 due to heat and age. Nylon guides fracture and fall apart. Pull the right valve cover and you will see signs of chain wear against the cover. I... Login to read more.