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If your Chevy Malibu is showing a P16CF code, it means there's an issue with the rocker arm actuator system. Checking and diagnosing the problem can typically cost around one hour of labor, which is usually between $50 and $70. The repair itself can vary in cost depending on factors like the car's model year, location, and extent of work needed. The rocker arm actuator system is responsible for adjusting the camshaft lift when the engine is running. Each camshaft intake valve has three lobes: two for high lift and one for low lift. The ECM signals the rocker arm solenoid to control the flow of oil to the rocker arm.
The issue with the Chevy Malibu's code P16CF may be due to a defective intake rocker arm solenoid valve. The replacement valve is priced at around $50, and the repair is relatively straightforward.