L5P Duramax CP4 Failure and the CP3 Conversion That Fixes It
The 2017 and up L5P Duramax runs a CP4.2 pump that can grenade and take the whole fuel system with it. Here is the CP3 conversion...
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Diesel tech guides
What fails on Cummins, Power Stroke and Duramax trucks, why it happens, and the part that fixes it. Written by the people who do the work.
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