7 7.1 Diagnosis Chart Troubleshooting Engine fails or is difficult to start P Engine starts but runs unevenly or stalls E W Engine gives poor performance R Engine not firing on all cylinders A S P P P A S P / E P / E P / W P P P / W P / R P / R P / R P / W *LDA = Aneroid device of 2 P P Fault 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 ● Not declutched (where possible) Operation P ● ● Below starting limit temperature P ● ● Engine shutdown lever in stop position (faulty solenoid) P ● ● Oil level too low A ● ● ● ● Oil level too high S ● ● ● Excessive inclination of engine P / E ● Speed control lever set to middle position P / E ● ● ● Dirty air cleaner/Faulty turbocharger Combustion air P / W ● ● ● Air cleaner service switch/indicator defective P ● ● LDA* defective (leaking line) P ● ● ● Charge air line leaking P / W ● Coolant pump defective Cooling system P / R ● ● Charge air cooler contaminated P / R ● Coolant heat exchanger dirty P / R ● ● ● ● ● Cooling fan defective, split or loose V-belt (belt-driven fuel pump) P / W ● ● Cooling air temperature rise/ hot air recirculation P ● Battery defective or discharged Electrics P