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International Automotive Technicians Network
Re: Unexplained loss of compression
Posted to Technical Discussion Forum on 1/14/2022

There is a rare chain of events in which large carbon flakes come off the piston head and get stuck to the exhaust valve seats. So, compression goes away and engine gets flooded. Then you “do things” to try to start it and eventually the carbon breaks up enoug... Login to read more.