2007 Chevrolet Colorado Camshaft

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

You need to remove the drive belt, the left wheelhouse liner, and the air conditioning (A/C) suction hose from the compressor, then remove the A/C discharge hose from the compressor, the bolts securing the drive belt Idler Pulley to the engine, and remove drive belt idler pulley from the engine.

You should position the upper Timing Chain Guide to the cylinder head, next apply thread lock to the upper timing chain guide bolt threads, then install the upper timing chain guide bolts and the camshaft cover.