Troubleshooting

(Table 50, contd)
Troubleshooting Test Steps
Values Results
6. Altitude
A. Check for operation at high altitude.
Note: The cooling capacity of the ATAAC is reduced as the
engine is operated at higher altitudes.
Altitude Result: The engine is being operated at high altitude.
Repair: Operate the engine at reduced speed or reduced
power.
Result: The engine is not being operated at high altitude.
Proceed to Test Step 7.
7. Running Condition
A. Check that the engine is not operating in the lug condition.
Note: When the load that is applied to the engine is too large,
the engine will run in the lug condition. When the engine is
running in the lug condition, engine rpm does not increase
with an increase of fuel. This lower engine rpm causes a re-
duction in coolant flow through the system.
Running
condition
Result: The engine is operating in the lug condition.
Repair: Reduce the load on the engine or, if possible, in-
crease the power rating of the engine.
Result: The engine is not operating in the lug condition.
Contact the Dealer Solution Network (DSN).
i06042298
NRS Mass Flow Rate Problem
This procedure covers the following diagnostic
trouble code:
Table 51
Diagnostic Trouble Codes
J1939 Code
Code Description
Comments
3358-10 Engine Exhaust Gas Recirculation 1 Intake Pressure : Abnormal Rate of
Change
The ECM detects an air leak in the Exhaust
Gas Recirculation (EGR) system.
The warning lamp will flash. The engine may
be derated.
Probable Causes
• Diagnostic codes
• Electrical connectors and harness
• Air inlet and exhaust system
Recommended Actions
Note: The procedures have been listed in order of
probability. Complete the procedures in order.
108 UENR0612-07
Symptom Troubleshooting
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