Thus far, we are aware of two issues with the PE pumps:
1) A faulty run of cartridges has caused some early failures of the PE4200 and 4100 pumps. PE has corrected this problem.
2) Improper fuel system design has caused some early failures. PE pumps cannot be installed at the tank where water impregnation can occur. Coating with waterproof substances may prolong pump life, but overheating can occur. The pumps _must_ be installed where water contact on wet roads is minimal. These pumps also cannot be installed with a pre-filter.
PE has temporarily suspended diesel operations, and are undergoing some trials. They intend to test several configurations, however they feel that a system which mounts the pump forward under the hood, utilizing the stock lines from the tank, and -8 lines from lift pump through to the VP44 will work fine. Bench testing will occur, and PE will develop a recommendation of how their pumps should be used on our trucks to ensure maximum life. They want to be part of our merry little band of misfit dieselheads, and as such, we will be working closely with them over the next few weeks to ensure that we can develop a system which will meet everyone's needs.