2005 Chevrolet Colorado Idler Pulley

You should install the Balance Shaft Chain guide, the balance shaft chain guide bolts, and the balance shaft drive chain.

You should remove the camshaft cover, the Camshaft Position (CMP) sensor, and the engine front cover, install the -J 44221 to the rear of the camshafts, and remove the exhaust camshaft position actuator bolt, the exhaust camshaft position actuator, the intake camshaft sprocket bolt, the intake camshaft sprocket, the Timing Chain, and the crankshaft sprocket.

You should install the lower Timing Chain Guide bolts, the cylinder head access hole plug, the crankshaft sprocket to the crankshaft sprocket snout, and the timing chain tensioner shoe.