hard start 03 3500
Cummins Guru


Joined: Feb 2008
Posts: 4,191
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From: Sunny Southern California Land of Fruits and Nuts
I would first tighten all the High pressure tubes to spec (37 ftlbs). 15/16 socket. They will sometimes loosen up enough to give you high return flow from injectors.
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sundance32us
3rd Gen High Performance and Accessories (5.9L Only)
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Dec 13, 2015 07:36 AM



