When a damaged cam phaser is left in for too long, it could potentially damage the pistons. ... Using a phaser lockout that locks the cam phaser into a fixed position prevents any movements that could rattle.

What does a cam phaser lockout do?

Our CNC Billet Cam Phaser Lockouts will completely lock the cam timing in the fully advanced position and will eliminate movement and noise associated with failing cam phasers. Cam phaser knock is a common problem in the 5.4 3V Ford Trucks especially in higher mileage or fleet applications.

What is a phaser lock kit?

55760. Details. The phaser lock kit features a unique plug design that eliminates all slack in the system and prevents the VVT phaser from moving, giving consistent cam timing with no variability. Additionally, locking the phaser simplifies the ECU tuning process.