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The PCV orificed tube (5) restricts the flow rate of the blow-by gases using a 2.5 mm (0.098 in) DRIVE BELT SYSTEM DESCRIPTION The drive belt system consists of the following components: The drive belt The drive belt tensioner The drive belt idler pulley The crankshaft balancer pulley The accessory drive component mounting brackets The accessory drive components The power steering pump, if belt driven The generator The A/C compressor, if equipped The engine cooling fan, if belt driven The water pump, if belt driven The vacuum pump, if equipped The air compressor, if equipped The drive belt system may use 1 belt or 2 belts. The drive belt is thin so that it can bend Both sides of the drive belt may be used to drive the different accessory drive components. When The drive belt is pulled by the crankshaft balancer pulley across the accessory drive component The drive belt system may have an idler pulley, which is used to add wrap to the adjacent pulleys.
2007 Hummer H3 2007 ENGINE Engine Mechanical - 3.7L - H3
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