This bulletin refers to engine knocking or ticking at idle, with the noise usually more noticeable when the engine is warm. The probable cause is excessive clearance at the rocker shaft bridge which causes the rocker shaft to rotate and produce the noise. Affected vehicles includes 2008 Accord V6 with automatic transmission, 2008 Odyssey EX-L/Touring and 2009 Pilot 2DW and 4WD vehicles.
The corrective action involves loosening and re-torquing the rocker shaft bridge bolts.
Note: The bridge is designed to crush around the rocker shaft, so when torquing the bolts, it may initially feel like the bolt is stripped. This is normal. Continue torquing bolts until the appropriate torque valve is reached. Do not replace the bolt, bridge or the head. Do not over-torque the bolts, as they may break. The bridge bolts for VCM and V-TEC engines have the same torque values and tightening sequences.
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