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consistent performance
1) Oil Pump O-Ring
0L Powerstroke riddled with exhaust leaks and poor performance
a polished compressor housing and 360 degree thrust bearing
Airdog II-5G 165 GPH Air Fuel Separation Lift Pump System 15-16 6.6L GM Duramax LML AFE-44-FF011 consistent performanceWhy GM opted to not include a factory fuel lift pump on all of the early model Duramax's is still a mystery. This lack of consistent fuel pressure coupled with the switch from the proven CP3 to a CP4 injection pump beginning in model year 2011 has spelled disaster on these trucks, especially for those trying to increase the horsepower through performance programmers and or larger displacement injectors. Even at stock power levels, this insufficient
