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I had to replace one of my fuel pumps in the first motor at 75 hours. Then the second went only a few hours later on the other motor. Any ideas? We replaced furl filters with new Racor fuel/water seperators and new fuel. Also have been reccomended to use WaterAbsorb. The engine run fine until 2000rpms and then start to go crazy and just seems to be starved for fuel. What is going on and what can be done to prevent from happening again? Is this happening with other HPDI's Thanks for any help. from NJ