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Diesel IQ - Power Stroke & Cummins Diesel Engines

Power Stroke & Cummins Diesel Engines

Rough Idle, Warm Engine

December 2, 2020 by DieselIQ Leave a Comment

CauseCorrection
Idle Speed Too LowCheck / adjust low idle screw setting.
OK

Air in Fuel SystemBleed the fuel system and check for suction leaks.
OK

Malfunctioning Fuel Return Overflow ValveCheck / replace fuel return overflow valve.
OK

Fuel Transfer Pump MalfunctioningCheck / replace fuel transfer pump.
OK

Injection Pump Timing IncorrectCheck / correct injection pump timing.
OK

Injector Nozzles Plugged or InoperativeReplace injectors.
OK

Broken Engine MountsReplace engine mounts.
OK

Injection Pump Worn or MalfunctioningRemove injection pump, check calibration.
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