Hello,
My truck randomly started fluctuating rpms while idling and now i got a derate sign. Any idea what could be the case! Posting and will update after i go to shop but its good incase someone else has issue one day. Let me know what yall think
X15 2018 cummins
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by TruckerOnDuty13, Mar 19, 2024.