Do you have a 2008 - 2012 Honda Accord 2.4L?
Does the engine rattle loudly for about 2 seconds on cold start-up? If this sounds like your reliable Honda, the variable valve timing control (VTC) actuator is most likely defective and should be replaced.
What does the VTC Actuator do and do I need to fix it?
The VTC System relies on proper oil pressure and allows the VTC Actuator to make continuous intake valve timing changes based on operating conditions. Intake valve timing is optimized to allow the engine to produce maximum power. If an error occurs, the VTC system control is disabled and the valve timing is no longer variable. This should be repaired sooner rather than later to avoid a potential check engine light possibly accompanied with rough idle and/or lack of power or stalling.
Do I need to replace my timing chain at the same time?
Replacement of the VTC actuator does not require the complete removal of the timing chain and associated parts, but this may be a good time to do so depending on the mileage and specific diagnosis.
How much will a new VTC Actuator on my 2008 - 2012 Honda Accord cost?
Pricing for the VTC Actuator can range from $585 - $845.
What should I do if my 2008 - 2012 Honda Accord is making this rattle sound?
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Article written by an ASE Certified Technician