Keith Browning Posted April 28, 2010 Share Posted April 28, 2010 My latest 6.4L ass whooping. This cylinder along with a friend got all washed up and polished. This is the end result of a failed high pressure fuel pump... remember my post and video of the fluctuating fuel pressure gauge? This is the engine with 32,000 miles. Along with fuel trim above 12% and some pretty sparkley debris in the fuel line this is what I found... and a compression reading of 60 PSI below baseline. Quote Link to comment Share on other sites More sharing options...
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