Symptom Tree t096
| Cause | Correction |
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Electronic fault codes active or high counts of inactive fault codes |
Refer to Section TF in the Troubleshooting and Repair Manual for CELECT™ Plus Systems, Bulletin 3666130, or the Troubleshooting and Repair Manual for CELECT™ Systems, Bulletin 3666084. |
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Intake manifold temperature sensor is malfunctioning |
Check the intake manifold temperature sensor. Refer to Procedure 019-059 in the Troubleshooting and Repair Manual for CELECT™ Plus Systems, Bulletin 3666130, or the Troubleshooting and Repair Manual for CELECT™ Systems, Bulletin 3666084. |
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Intake manifold temperature gauge is malfunctioning, if equipped |
Test the temperature gauge. Refer to the OEM service manual. |
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Vehicle speed is too low for adequate cooling with high engine load |
Reduce the engine load. Increase the engine (fan) rpm by downshifting. |
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Radiator shutters are not opening completely or the shutterstat setting is wrong |
Inspect the radiator shutters. Repair or replace if necessary. Refer to the manufacturer’s instructions. Check the shutterstat setting. |
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Cold weather radiator cover or winterfront is closed |
Open the cold weather radiator cover or the winterfront. Maintain a minimum of 784 cm2 [122 in2] or approximately 28 x 28 cm [11 x 11 in] of opening at all times. Refer to Operation of Diesel Engines in Cold Climate, Bulletin 3379009. |
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Charge air cooler fins, radiator fins, or air conditioner condenser fins are damaged or obstructed with debris |
Inspect the charge air cooler, air conditioner condenser, and radiator fins. Clean, if necessary. Refer to Procedures 010-027 and 008-042. |
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Fan shroud is damaged or missing or the air recirculation baffles are damaged or missing |
Inspect the shroud and the recirculation baffles. Repair, replace, or install, if necessary. Refer to Procedures 008-038. |
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Fan drive belt is loose |
Check the belt tension and tighten if necessary. Refer to Procedure 008-002. |
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Fan drive or fan controls are malfunctioning |
Check the fan drive and controls. Refer to Procedures 008-026, 008-027, and 008-028. |
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Fan is not an adequate size for the application |
Verify that the fan is the correct size. Refer to the engine and OEM specifications. |
