Fuel System - Ticking/Thumping Noise at Idle

Classification:
EC06-004

Reference:
ITB06-012

Date:
May 24, 2006

TICKING NOISE FROM ENGINE AREA

APPLIED VEHICLE(S):
2003-2006 G35 (V35 and CV35),
2002-2006 Q45 (F50),
2003-2006 FX35/45 (S50),
2003-2004 M45 (Y34),
2006 M35/45 (Y50)

IF YOU CONFIRM

There is a ticking, clicking, thumping, or knocking noise heard in the passenger compartment at idle. The noise could be from the engine compartment.

ACTION





^ With the engine idling, feel the fuel damper hose while the noise is occurring. The fuel damper hose is located on the Bank 1 side of the engine.





^ If the vibration of the fuel damper hose coincides with the noise heard inside the vehicle, replace the fuel damper and attached hose on that cylinder bank (Bank 1).

^ See the respective ESM and Engine Mechanical (EM) section for replacement of the damper with hose.

^ Confirm the noise at idle from the passenger compartment is not present.





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