Engine Timing Camshaft Locking Tool Kit for Ecotec 2010 Buick Lacrosse Chevrolet Equinox GMC Terrain 2.0L 2.4L. Engine model: 2.0L, 2.4L Ecotec Engine. Compatible with Buick LaCrosse 2010. If the intake camshaft actuator independently of the camshaft and did not move the lock, the counterclockwise rotation of the intake camshaft,the locking tool fixing actuator, the actuator locking on the cam.