Ranger 4WD L4-153 2.5L SOHC VIN C SFI (2001)
Variable Cam Timing (VCT) Solenoid Valve
Variable Cam Timing (VCT) Solenoid Valve
The VCT solenoid valve (Figure 130) 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.
Variable Cam Timing Unit Assembly
Variable Cam Timing (VCT) Unit Assembly
The variable cam timing unit assembly (Figure 131) is coupled to the camshaft through a helical spline in the VCT unit chamber. When the
flow of oil is shifted from one side of the chamber to the other, the differential change in oil pressure forces the piston to move linearly along
the axis of the camshaft. This linear motion is translated into rotational camshaft motion through the helical spline coupling. A spring installed
