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Home >> Hummer >> 2004 >> H2 4D Utility Pickup >> Repair and Diagnosis >> External Pages >> Different car >> Section 249 (Engine Mechanical - 3.5L (Unit Repair)) >> Description and Operation >> Engine Component Description >> Engine Cooling System
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Engine Cooling System

WARNING: This page is about a different car, the 2002 Oldsmobile Aurora and 2001 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.

The coolant pump is bolted to the engine front cover and is driven by the serpentine belt via a drive pulley. The water outlet collects coolant from the cylinder head for delivery to the radiator. The water crossover also provides important functions for the EGR System. The coolant pump and its housing form an assembly which is inseparable and serviced as one unit.