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SYMPTOM TROUBLESHOOTING 03-03–5 03-03 NO.3 ABNORMAL NOISE AND/OR VIBRATION FROM COUPLING COMPONENT id030300800600 Diagnostic procedure End Of Sie 3 Abnormal noise and/or vibration from coupling component [TROUBLESHOOTING HINTS] • Abnormal noise and/or vibration from coupling component during driving • Propeller shaft is malfunctioning or attached improperly. • Engine mount or differential mount malfunction • Resonance of rotating parts on vehicle (engine, propeller shaft, rear differential, tire, etc.) • Resonance with engine vibration (mainly with exhaust system parts) • Rear differential malfunction • Coupling component malfunction STEP INSPECTION ACTION 1 VERIFY DSC, PCM, AND AWD SYSTEM DTCS • Verify DSC, PCM, and AWD system DTCs using the M-MDS. • Are there any DTCs present? Yes Go to applicable DTC inspection. No Go to next step. 2 VERIFY INSTALLATION CONDITION OF • Verify installation condition for following: — Propeller shaft (including bending and joint operation) — Center bearing — Engine mount — Differential mount — Hub bearing — Exhaust system parts — ABS wheel-speed sensor • Are they properly installed? Yes Go to next step. No Repair or replace malfunctioning part. 3 DETERMINE IF MALFUNCTION IS CAUSED • Install tires of another brand. Note • When tires of another brand are installed, the same malfunction can • Perform simulation driving at the same engine speed, gear position, and vehicle • Does the same malfunction occur? Yes Reinstall customer’s vehicle tire. Go to next step. No AWD system is okay. 4 INSPECT REAR DIFFERENTIAL • Inspect rear differential for following: — Backlash — Teeth contact (See 03-14-10 REAR DIFFERENTIAL ASSEMBLY) • Are they okay? Yes Replace coupling component. No Inspect malfunctioning part and adjust it if necessary. 1871-1U-06B(03-03).fm 5 ページ 2006年3月15日 水曜日 午前11時4分 |