VARIABLE VALVE TIMING (VVT) NOISE WHEN STARTING ENGINE 2007 Mazdaspeed 3 2006-2007 Mazdaspeed 6 2007 Mazda CX-7

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Filed Under (Mazda) by admin on 20-10-2009

APPLICABLE MODEL(S)/VINS
2007 Mazdaspeed3 vehicles with VINs lower than JM1BK******742222 (produced before April 1, 2007)
2006-2007 Mazdaspeed6 vehicles with VINs lower than JM1 GG******109660 (produced before April 1, 2007)
2007 Mazda CX-7 vehicles with VINs lower than JM3ER******166945 (produced before April 1, 2007)
DESCRIPTION
When the engine is first started, some vehicles may exhibit a loud ticking noise from the variable valve timing
(VVT). This is caused by the lock pin of the variable valve timing actuator not fully engaging. Heat treatment has
now been added around the hole of the variable valve timing rotor lock pin to prevent this from happening

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