Variable Valve Timing Solenoid: Description and Operation

Variable Cam Timing (VCT) Solenoid Valve

Variable Cam Timing (VCT) Solenoid Valve:

The VCT solenoid valve (Figure 128) is an integral part of the VCT system. The solenoid valve controls the flow of engine oil to the variable cam timing unit assembly. As the PCM duty cycles the solenoid valve, oil is allowed to flow to the VCT unit assembly and advance or retard the cam timing.