Low Engine Oil Pressure - Perkins 1106C Troubleshooting Manual

64
Troubleshooting Section
3. If a fault is suspected with the ECM power and
ground connections refer to Troubleshooting,
"Electrical Power Supply Circuit - Test".
4. Verify that the ECM connections for the power and
ground connections at the fuel pump are correctly
connected.
5. Repair any faults and ensure that the faults have
been eliminated.
6. If the repairs do not eliminate the faults, proceed
to "Fuel Supply".
Fuel Supply
1. Visually check the fuel tank for fuel. The fuel
gauge may be faulty.
2. Ensure that the fuel supply valve (if equipped) is
in the full OPEN position.
3. If the temperature is below 0 °C (32 °F), check
for solidified fuel (wax).
4. Check the primary filter/water separator for water
in the fuel.
5. Check for fuel supply lines that are restricted.
6. Check that the low pressure fuel lines are tight
and secured properly.
7. Check the fuel filters.
8. Check the diesel fuel for contamination. Refer to
Testing and Adjusting, "Fuel Quality - Test".
9. Check for air in the fuel system. Refer to Testing
and Adjusting, "Air in Fuel - Test".
10. Ensure that the fuel system has been primed.
Refer to Testing and Adjusting, "Fuel System -
Prime".
11. Check the fuel pressure. Start the engine and
then use the electronic service tool to check
that the pressure in the fuel rail is more than
18000 kPa (2610 psi).
12. If the repair does not eliminate the fault refer to
"Intake Manifold Pressure".
Intake Manifold Pressure
1. Use the electronic service tool to verify the intake
manifold pressure.
2. Turn the start switch to the ON position.
3. The intake manifold pressure should read
0 ± 0.5 kPa (0 ± 0.07 psi). If the intake manifold
pressure is not within the limits, perform the
following steps.
4. Check the air filter restriction indicator, if equipped.
5. Ensure that the air filter is clean and serviceable.
6. Check the air intake and the exhaust system for
the following defects:
•
Blockages
•
Restrictions
•
Damage to the air intake and exhaust lines and
hoses

Low Engine Oil Pressure

NOTICE
Do not operate the engine with low oil pressure.
Engine damage will result. If measured oil pressure is
low, discontinue engine operation until the problem is
corrected.
Probable Causes
•
Engine oil level
•
Oil specification
•
Engine oil pressure gauge
•
Engine oil filter
•
Engine oil cooler
•
Piston cooling jets
•
Engine oil suction tube
•
Engine oil pump
•
Bearing clearance
Recommended Actions
Engine Oil Level
1. Inspect the engine oil level. If necessary, add oil.
2. If the fault is still apparent, refer to "Oil
Specification".
KENR6933
i02528979