Download the “Warranty Report” from the engine ECM before performing any troubleshooting or clearing diagnostic trouble codes. Check Caterpillar Electronic Technician (ET) for any associated codes that are listed in Table 1. Troubleshoot any active codes before continuing with this procedure.
|Associated Diagnostic Trouble Codes|
- Throttle Signal
- Air Inlet and Exhaust System
- Fuel System
- Engine Load
- Valve Lash
Note: The procedures have been listed in order of probability. Complete the procedures in order.
Note: If the problem only occurs under certain conditions, test the engine under those conditions. Examples of certain conditions are high engine speed, full load, and engine operating temperature. Troubleshooting the symptoms under other conditions can give misleading results.