Use The Chart Below To Help You Find The Cause Of The Symptom
WARNING: This page is about a different car, the 2016 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.
- Locate the area where noise occurs.
- Confirm the type of noise.
- Specify the operating condition of engine.
- Check specified noise source. Repair or replace the identified part as necessary.
Location of noise Type of noise Operating condition of engine Source of noise Check item Reference Before warm-up After warm-up When starting When idling When racing While driving Top of engine
Rocker cover
Cylinder headTicking or clicking C A - A B - Tappet noise Valve clearance VALVE CLEARANCE Rattle C A - A B C Camshaft bearing noise Camshaft journal clearance
Camshaft runoutREMOVAL AND INSTALLATION Crankshaft pulley
Cylinder block (Side of engine)
Oil panSlap or knock - A - B B - Piston pin noise Piston and piston pin clearance
Connecting rod bushing clearanceON-VEHICLE SERVICE Slap or rap A - - B B A Piston slap noise Piston-to-bore clearance
Piston ring side clearance
Piston ring end gap
Connecting rod bend and torsionDISASSEMBLY AND ASSEMBLY Knock A B C B B B Connecting rod bearing noise Connecting rod bushing clearance (Small end)
Connecting rod bearing clearance (Big end)DISASSEMBLY AND ASSEMBLY Knock A B - A B C Main bearing noise Main bearing oil clearance
Crankshaft runoutDISASSEMBLY AND ASSEMBLY Front of engine
Timing chain coverTapping or ticking A A - B B B Timing chain and chain tensioner noise Timing chain cracks and wear
Timing chain tensioner operationEXPLODED VIEW Front of engine Squeaking or fizzing A B - B - C Drive belts (Sticking or slipping) Drive belts deflection CHECKING DRIVE BELT Creaking A B A B A B Drive belts (Slipping) Idler pulley bearing operation Squall
CreakA B - B A B Water pump noise Water pump operation REMOVAL AND INSTALLATION A: Closely relatedB: RelatedC: Sometimes related-: Not related