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Central South Dakota | I am looking for ideas. I recently did a complete overhaul on an 855 cummins. I did not rebuild the fuel pump as it had very few hours on it before we decided to tear the engine down. Now the truck runs great, but it returns to idle too slowly, and it almost dies off before it comes back up to idle. It has run long enough it should have all the air out and I don't see any external leaks when not running. Thanks in advance for helping. | |
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855 Cummins ?
