MAXIMA/ALTIMA/QUEST; BUZZING/WHINING NOISE FROM TIMING CHAIN AREA
APPLIED VEHICLES: 2004-2008 Maxima (A34), 2004-2006 Altima (L31) with VQ35 engine ONLY, 2004-2009 Quest (V42)
IF YOU CONFIRM:
There is a high frequency buzzing/whining noise coming from the secondary timing chain system.
• 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.
ACTION:
1. Replace both secondary timing chains and both secondary timing chain tensioner “shoes” with the ones from the PARTS INFORMATION section of this bulletin (on Page 2).
2. Change the engine oil and filter.
3. For repair procedure, refer to the SERVICE PROCEDURE section of this bulletin (starting on Page 3).
SERVICE PROCEDURE
1. Write down all radio station presets.
2. Disconnect both battery cables, negative cable first. Download File PDF
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