NISSAN MAXIMA WHINING NOISE FROM TIMING CHAIN AREA

NISSAN MAXIMA WHINING NOISE FROM TIMING CHAIN AREA - 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 Write down all radio station presets. Presets 1 2 3 4 5 6 A B C 2. Disconnect both battery cables, negative cable first. 3. Remove the secondary timing chains. Refer to the Electronic Service Manual (ESM) if needed. NOTE: It is not necessary to remove the valve covers or intake collector. • Before removing the crankshaft pulley, set it to 0° Top Dead Center (TDC). • Use Tool J-50288 to secure the flywheel / flex plate when removing the crankshaft pulley and camshaft sprockets (no picture shown).

NOTE : The camshaft sprockets’ bolts will be removed and installed while being held by all three (3) timing chains. • If the crankshaft is determined to be 360° off from 0° TDC on #1 cylinder compression stroke after removing the front timing chain case (front cover), put the crankshaft pulley back on, and then rotate the crankshaft 360° (when camshaft and crankshaft sprocket mating marks are aligned).

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