2004-2010 INFINITI QX56; NOISE AND/OR VIBRATION FROM PROPELLER SHAFT U-JOINT (JOURNAL/JOURNAL BEARINGS)
The propeller shaft u-joint (journal/journal bearings) is the source of noise and/or vibration on an Applied Vehicle.
2009-2011 INFINITI G37 SEDAN AWD, G37 COUPE AWD; VIBRATION AND / OR BOOMING NOISE AT HIGHWAY SPEED
One or more of the following during highway speeds:
• Vibration felt in the seat and / or floor
• Inside rear view mirror vibrates, causing blurred reflection
• Vibration heard from the rear parcel shelf
• Booming noise heard
-REVISED- 2011-2013 INFINITI QX56; WHINE NOISE FROM ENGINE AREA
A whine type noise is coming from the Bank 2 (B2) side of the timing chain system.
• The noise is best heard from the high pressure fuel pump area.
• The noise should increase in frequency with engine speed (RPM).
• If the noise does not increase with engine speed, the timing chain system may not be the cause.
Refer to the appropriate section of the Electronic Service Manual (ESM) for further diagnosis.
1997-1999 INFINITI QX4; WHINE (BEARING) NOISE FROM TRANSFER CASE
If a whine or bearing type noise is heard coming from the transfer case of a 1997-99 QX4, the cause may be a combination of the transfer motor assembly and the sub-oil pump assembly.