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NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING EM-259 < SYMPTOM DIAGNOSIS > [K9K] C D E F G H I J K L M A EM N P O Use the Chart Below to Help You Find the Cause of the Symptom INFOID:0000000010282041 1. Locate the area where noise occurs. 2. Confirm the type of noise. 3. Specify the operating condition of engine. 4. Check specified noise source. If necessary, repair or replace these parts. A: Closely related B: Related C: Sometimes related —: Not related Location of noise Type of noise Operating condition of engine Source of noise Check item Refer- ence page Before warm- up After warm- up When start- ing When idling When racing While driving Top of en- Ticking or C A — A B — Tappet Valve clearance Crank- Slap or A — — B B A Piston Piston ring end gap Front of Tapping or A A — B B B Timing Timing belt tensioner Front of Squeak- A B — B — C Drive belts Drive belts deflection Squall A B — B A B Water Water pump operation |