Troubleshooting 7.1 Diagnosis Chart
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Fault Remedy
Engine fails or is difficult to start Check P
Engine starts but runs unevenly or stalls Adjust E
Engine overheats. Temperature monitor gives warning Replace W
Engine gives poor performance Clean R
Engine not firing on all cylinders Top up A
Engine has little or no oil pressure Lower level S
Engine oil consumption excessive
Engine smokes - blue
- white
- black
Section
Cause
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
Table 2 of 2
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