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SYMPTOM TROUBLESHOOTING [L3 WITH TC] 01-03–49 01-03 End Of Sie 22 Is any engine oil found inside turbocharger Yes Wipe oil out vehicle and install all removed parts in No Turbocharger is normal. 23 Inspect for leakage in fuel line. Yes Repair or replace suspected part. No Go to the next step. 24 Access and monitor FUEL_PRES PID. Yes Go to Step 27. No Go to the next step. 25 Replace the high pressure fuel pump. Yes Troubleshooting is completed. No Go to the next step. 26 Inspect the fuel pressure sensor. Yes Go to the next step. No Replace the delivery pipe. 27 Connect the fuel pressure gauge between fuel Yes Go to the next step. No Inspect for the following: • Fuel line restriction • Fuel filter clogging If normal replace the fuel pump. 28 Inspect fuel injector for each cylinder. Yes Go to the next step. No Replace suspected fuel injector. 29 Measure compression pressure for each Yes Replace the injector driver module. No Inspect for the following: • Damaged valve seat • Worn valve stem and valve guide • Worn or stuck piston ring • Worn piston, piston ring or cylinder • Improper valve timing Service if necessary. 30 Verify test results. • If normal, return to the diagnostic index to service any additional symptoms. • If a malfunction remains, inspect the related Service Bulletins and/or On-line Repair Information and perform the repair or diagnosis. — If the vehicle is not repaired or additional diagnostic information is not available, reprogram the PCM if a later calibration is available. Retest. STEP INSPECTION RESULTS ACTION 1871-1U-06B(01-03).fm 49 ページ 2006年3月15日 水曜日 午前10時36分 |