Nissan Versa
Sedan Service Manual
Engine » Engine mechanical (EM)
Noise, vibration and harshness (NVH) troubleshooting

NVH troubleshooting Chart

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

If necessary, repair or replace these parts.

Location of noise	Type of noise	Operating condition of engine						Source of noise	Check item
Location of noise	Type of noise	Before warmup	After warmup	When starting	When idling	When racing	While driving	Source of noise	Check item
Top of engine rocker cover cylinder head	Ticking or clicking	C	A		A	B		Tappet noise	Valve clearance
Top of engine rocker cover cylinder head	Rattle	C	A		A	B	C	Camshaft bearing noise	Camshaft journal oil clearance Camshaft runout
Crankshaft pulley cylinder block (side of engine) oil pan	Slap or knock		A		B	B		Piston pin noise	Piston to piston pin oil clearance Connecting rod bushing oil clearance
	Slap or rap	A			B	B	A	Piston slap noise	Piston to cylinder bore clearance Piston ring side clearance Piston ring end gap Connecting rod bend and torsion
	Knock	A	B	C	B	B	B	Connecting rod bearing noise	Connecting rod bushing oil clearance Connecting rod bearing oil clearance
	Knock	A	B		A	B	C	Main bearing noise	Main bearing oil clearance Crankshaft runout
Front of engine front cover	Tapping or ticking	A	A		B	B	B	Timing chain and chain tensioner noise	Timing chain cracks and wear Timing chain tensioner operation
Front of engine	Squeaking or fizzing	A	B		B		C	Drive belt (Sticking or slipping)	Drive belt deflection
	Creaking	A	B	A	B	A	B	Drive belt (Slipping)	Idler pulley bearing operation
	Squall Creak	A	B		B	A	B	Water pump noise	Water pump operation