
(Table 54, contd)
Troubleshooting Test Steps
Values
Results
3. Cylinder Head
A. Check the cylinder head for flatness. Refer to Systems Op-
eration, Testing, and Adjusting, “Cylinder Head - Inspect” for
the correct procedure.
B. Check the mating face of the cylinder head for faults and
signs of leakage. If a fault is found, replace the cylinder head.
If signs of leakage are found, determine the cause of the leak-
age. Refer to Systems Operation, Testing, and Adjusting, “Cyl-
inder Head - Inspect” for the correct procedure.
C. Check the internal core plugs in the cylinder head for signs
of leakage.
Cylinder head
Result:
The cylinder head is not within specification for
flatness.
Install a new cylinder head. Refer to Disassembly and Assem-
bly, “Cylinder Head - Install” for the correct procedure.
Result:
The cylinder head shows signs of a fault or leakage.
Install a new cylinder head. Refer to Disassembly and Assem-
bly, “Cylinder Head - Install” for the correct procedure.
Result:
An internal core plug in the cylinder head shows signs
of leakage.
Replace the faulty core plug.
Result:
The cylinder head is OK.
Proceed to Test Step 4.
4. Cylinder Block
A. Inspect the top face of the cylinder block for faults and signs
of leakage.
Cylinder block
Result:
The top face of the cylinder block has a fault.
Replace the cylinder block.
Result:
The top face of the cylinder block shows signs of
leakage.
Determine the cause of the leakage. Refer to Systems Opera-
tion, Testing, and Adjusting, “Cylinder Block - Inspect” for the
correct procedure.
Result:
The cylinder block is OK.
Install the cylinder head. Refer to Disassembly and Assembly,
“Cylinder Head - Install”.
Remove the oil filter element. Install a new engine oil filter ele-
ment. Fill the engine with clean engine oil to the correct level.
Refer to the Operation and Maintenance Manual, “Engine Oil
and Filter - Change” for more information.
Fill the cooling system. Refer to the Operation and Mainte-
nance Manual for more information.
Contact the Dealer Solution Network (DSN).
i06043604
Oil
Contains
Fuel
This procedure covers the following diagnostic codes:
Table 55
Diagnostic Trouble Codes for Oil Contains Fuel
J1939 Code
Description
Notes
(continued)
UENR0612
111
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