Troubleshooting 7.1 Diagnosis Chart Injector defective Fault Engine fails or is difficult to start Engine starts but runs unevenly or stalls Engine overheats. Temperature monitor gives warning Engine gives poor performance Engine not firing on all cylinders Engine has little or no oil pressure Engine oil consumption excessive Engine smokes - blue - white - black Cause 7 Fault Remedy Engine fails or is difficult to start Engine starts but runs unevenly or stalls Engine overheats.
Temperature monitor gives warning Engine gives poor performance Engine not firing on all cylinders Engine has little or no oil pressure Engine oil consumption excessive Engine smokes - blue - white - black Cause Check P Adjust E Replace W Clean R Top up A Lower level S Section Engine starts but runs unevenly or stalls Engine overheats. Temperature monitor gives warning Engine gives poor performance Engine not firing on all cylinders Engine has little or no oil pressure Engine oil consumption excessive Engine smokes - blue - white - black Cause Engine overheats.
Temperature monitor gives warning Engine gives poor performance Engine not firing on all cylinders Engine has little or no oil pressure Engine oil consumption excessive Engine smokes - blue - white - black Cause Engine gives poor performance Engine not firing on all cylinders Engine has little or no oil pressure Engine oil consumption excessive Engine smokes - blue - white - black Cause Engine not firing on all cylinders Engine has little or no oil pressure Engine oil consumption excessive Engine smokes - blue - white - black Cause Engine has little or no oil pressure Engine oil consumption excessive Engine smokes - blue - white - black Cause Engine oil consumption excessive Engine smokes - blue - white - black Cause Engine smokes - blue - white - black Cause - white - black Cause - black Cause Cause Section ● Electrics cable connections to starter, electrical system loose or oxidized Electrics P ● Starter defective or pinion does not engage P ● ● ● ● ● Incorrect valve clearance Engine E ● ● ● ● Leaking injection line P ● Vent pipe blocked (coolant heat exchanger) P / R ● ● Glow plugs defective P ● ● ● ● ● ● ● Injector defective P / W ● ● ● ● Air in fuel system P / W ● ● ● ● Fuel filter/prefilter dirty P/ R /W ● Oil filter defective W ● ● ● Incorrect lube oil SAE class or quality Operating media W ● ● ● ● Fuel quality not as per Operation Manual P/ W ● Coolant level too low P/ A