Symptom Tree t067
| 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 CELECT™ Plus Systems, Bulletin 3666130, or Section TF in the Troubleshooting and Repair Manual for CELECT™ Systems, Bulletin 3666084. |
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Fuel inlet restriction |
Check for fuel inlet restriction. Refer to Procedure 006-020. |
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Air in the fuel system |
Check for air in the fuel system. Refer to Procedure 006-003. |
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Fuel level is low in the tank |
Fill the supply tank. Refer to the OEM vehicle specifications. |
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Fuel drain line restriction |
Check or replace the fuel lines, check valves, or tank vents as needed. Refer to Procedure 006-012. |
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Electronic control module (ECM) calibration is malfunctioning |
Verify the ECM calibration is correct. Check the calibration revision history for applicable fixes to the calibration stored in the ECM. Refer to the calibration history spreadsheet Click here to see ecm_calibration_rev_history.xls on QuickServe® Online or the INCAL™ CD-ROM. Compare the calibration stored in the ECM with the engine rating and the Control Parts List (CPL), Bulletin 4021326 or 4021327. If necessary, recalibrate the ECM. Refer to Procedure 019-032 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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Accelerator pedal or lever position sensor or circuit is malfunctioning |
Check for foot pedal restriction. Check the accelerator pedal or lever position sensor and circuit. Refer to Procedures 019-085 and 019-086 in the Troubleshooting and Repair Manual CELECT ™ Plus Systems, Bulletin 3666130, or the Troubleshooting and Repair Manual for CELECT ™ Systems, Bulletin 3666084. |
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Cruise control/PTO selector switch or circuit is malfunctioning |
Check the cruise control/PTO selector switch and circuit. Refer to Procedures 019-023 and 019-024 in the Troubleshooting and Repair Manual CELECT ™ Plus Systems, Bulletin 3666130, or the Troubleshooting and Repair Manual for CELECT ™ Systems, Bulletin 3666084. |
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Engine position sensor (EPS) or circuit is malfunctioning |
Check the engine position sensor and circuit. Refer to Procedures 019-038 and 019-039 in the Troubleshooting and Repair Manual CELECT ™ Plus Systems, Bulletin 3666130, or the Troubleshooting and Repair Manual for CELECT ™ Systems, Bulletin 3666084. |
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Vehicle speed sensor (VSS) or circuit is malfunctioning |
Use an electronic service tool to monitor the vehicle speed while the vehicle is not moving. Refer to the appropriate electronic service tool manual. If the monitor shows speed, check the sensor and circuit. Refer to Procedures 019-090, 019-091, and 019-093 in the Troubleshooting and Repair Manual CELECT ™ Plus Systems, Bulletin 3666130, or the Troubleshooting and Repair Manual for CELECT ™ Systems, Bulletin 3666084. |
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Injector is malfunctioning |
Perform the cylinder performance test. Replace injectors as necessary. Refer to Procedures 006-005 and 006-026. |
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Fuel pump pulsation damper is cracked |
Inspect the fuel pump pulsation damper. Replace the pulsation damper if necessary. Refer to Procedure 005-031. |
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Automotive and variable speed (VS) governor idle speeds are set too close (STC engines only) |
Adjust the automotive and VS idle speeds. Refer to Procedures 005-028 and 005-029. |
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PT fuel pump calibration is not correct |
Remove the fuel pump. Check the calibration. Refer to Procedure 005-016 and PT Fuel Pump Rebuild and Calibration Manual, Bulletin 3379084. |
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PT fuel pump is not assembled correctly |
Check the fuel pump for correct assembly and installation. Refer to Procedure 005-016 and PT Fuel Pump Rebuild and Calibration Manual, Bulletin 3379084. |
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Camshaft end clearance is excessive |
Check the camshaft end clearance. Refer to Procedure 001-065. |
