Download SN415d service manual

ENGINE GENERAL INFORMATION AND DIAGNOSIS (K9K ENGINE) 6-2-71
Table 2 The engine does not start
Troubleshooting
Step
Action
1
Check that the fuel tank is correctly filled and
that the fuel type is suitable.
Is the fuel type suitable and the tank correctly
filled?
2
Is the starter motor working properly?
3
4
5
6
7
8
Yes
Go to Step 2.
No
Refill the fuel tank correctly.
Go to Step 3.
Carry out the required
repairs.
Carry out the required
repairs.
Check the following:
Go to Step 4.
• Check the low pressure circuit referring to
“Test 1: Low Pressure Circuit Check” in this
section
• Check for leaks in the high pressure circuit
• Check the electrical circuit referring to “Test
2: Electrical Circuit Check” in this section
• Check the engine parameters referring to
“Test 4: Parameter Check” in this section
• Check the air inlet circuit referring to “Test 5:
Air Inlet Circuit Check” in this section
Is it in good condition?
Is the fuel flow actuator blocked?
Carry out the required
repairs.
Is the engine wiring harness cut off or jammed? Carry out the required
repairs.
Check that the glow plugs are working properly. Replace the glow plugs.
Is the glow plug resistance above 1 Ω?
Are the compressions correct?
Go to Step 8.
Check the injectors referring to “Test 3: Injector End of fault finding.
Check” in this section.
• Check the injection pump referring to “Test
7: High Pressure Pump Check” in this section
• Check the ECM referring to “Test 6: ECM
Check” in this section
Is it in good condition?
Go to Step 5.
Go to Step 6.
Go to Step 7.
Carry out the required
repairs.
Carry out the required
repairs.