46 KENR6933
Troubleshooting Section
2. If any flash codes are displayed, diagnose the
flash codes and t
hen rectify the faults.
3. Attempt to start the engine. If the engine will not
start, procee
d to “Visible Faults”.
Visible Faults
1. Visually inspect the engine for the following faults:
•
Missing compo
nents
•
Damaged components
•
Damaged electrical cables or loose electrical
cables
•
Oil leaks
•
Fuel leaks
2. Check the following items:
•
Check for the proper level of fuel, oil and
coolant.
•
If the ambient temperature is below 0 °C (32 °F),
make sure that the correct specification of
engine oil an
d oil for the machine is used.
•
Check that the battery voltage is correct.
•
Use the electronic service tool to check the
average cranking speed of the engine. If the
cranking spe
ed is less than 150 rpm, investigate
the cause of the fault.
•
Make sure th
at all fuel filters are correctly
installed.
•
Drain any wa
ter from the primary fuel filter/water
separator and record the amount of water that
is collected.
3. Rectify any faults that are found during the visual
checks.
4. Attempt to start the engine. If the engine will not
start, proceed to “Air Intake and Exhaust System”.
Air Intake and Exhaust System
1. Check the a
ir filter restriction indicator, if equipped.
2. Ensure that the air filter is clean and serviceable.
3. Check the air intake and exhaust systems for the
following defects:
•
Blockages
•
Restrictions
•
Damage to lines or hoses
4. Repair any defe
cts before attempting to restart
the engine.
5. Attempt to sta
rt the engine. If the engine will not
start, proceed to “Diagnostic Codes”.
Diagnostic Co
des
1. Connect the electronic service tool to the
diagnostic co
nnector.
2. Check for active diagnostic codes on the electronic
service tool.
3. Troubleshoot any active codes before continuing
with this proc
edure. Refer to Troubleshooting,
“Troubleshooting with a Diagnostic Code”.
4. Attempt to st
art the engine. If the engine will not
start, proceed to “Primary Speed/timing Sensor”.
Primary Spee
d/timing Sensor
1. Disconnect the P401 connector from the primary
speed/timin
gsensor.
2. Attempt to start the engine.
3. If the engine starts, inspect the timing ring on the
crankshaft for misalignment.
4. If necessary, repair the timing ring. Refer to
Disassembly and A ssembly, “Crankshaft Timing
Ring - Remov
eandInstall”.
5. Reconnect the P401 connector to the primary
speed/timi
ng sensor.
6. Attempt to start the engine. If the engine will not
start, pro
ceed to “Low Pressure Fuel System”.
Low Pressure Fuel S ystem
1. Ensure that the fuel supply valve (if equipped) is
in the full OPEN position.
2. If the temperature is below 0 °C (32 °F), check
for solidified fuel (wax).
3. Check for fuel supply lines that are restricted.
4. Check that
the low pressure fuel lines are correctly
installed.
5. Check the d
iesel fuel for contamination. Refer to
Testing and Adjusting, “Fuel Quality - Test”.
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