2012 · Kenworth · T800 · Cummins ISX15 CM2250
2012 Kenworth T800 - ISX15 Misfire and Rough Idle - No Codes
1 Verified
1 Suggested
Issue / Concern
My 2012 T800 with the CM2250 ISX is running real rough at idle. It sounds like it's missing on one cylinder and there is a weird 'huffing' or 'chuffing' sound coming back through the air intake. There are absolutely no fault codes on my ScanGauge. Performance seems okay once I'm at highway speeds, but at stoplights, the whole cab shakes. I'm worried about the camshaft wear issue these engines are known for.
Mileage
None indicated
Symptoms
None indicated
Tests Performed
No
System
None indicated
DTC Codes
None indicated
Keywords
None indicated
Already tried
Replaced fuel filters and performed an injector cutout test which was inconclusive.
OBD2_Olivia41· 284d ago