To determine if high inlet air temperature is causing lack of power, perform the following:
1. Test the radiator fan, fan drive, or fan shroud for proper operation or configuration; refer
to OEM guidelines.
NOTE:
The engine will be torque limited to protect the turbocharger and charge air cooler;
(you will receive derate codes 110 and 404, FMI 14). This is normal engine operation
for component protection.
2.Examine test results.
[a] If the radiator fan, fan drive, or fan shroud pass OEM test, check high altitude
operation; refer to section 12.10.
[b] If the radiator fan, drive or shroud did not operate correctly; refer to section 12.9.1.
12.9.1
Radiator Fan, Drive and Shroud Replacement
Perform the following steps to replace the radiator fan, drive and or shroud:
1. Remove and replace the radiator fan, drive and/or shroud; refer to OEM guidelines.
2. Verify replacement; refer to section 12.9.1.1.
12.9.1.1
Test the Engine with Radiator Fan, Fan Drive, or Fan Shroud Replacement
Perform the following steps to determine if replaced radiator fan, fan drive, or fan shroud resolved lack of power condition:
1.2.Start and run the engine.
Test drive the vehicle to ensure lack of power has been resolved.
[a] If no lack of power occurred during the test drive, no further troubleshooting is
required. Shut down the engine.
[b] If lack of power occurred during the test drive, shut down the engine. Check high
altitude operation; refer to section 12.10.
