Home Auto Repair 2004 Chevrolet Silverado 2500 HD Water Pump Replacement

2004 Chevrolet Silverado 2500 HD Water Pump Replacement

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Download Removal Procedure 1. Remove the left fender wheelhouse inner panel. Refer to Wheelhouse Panel Replacement in Body Front End. 2. Drain the engine coolant and the engine block. Refer to Draining and Filling Cooling System (with HP2) or Draining and Filling Cooling System (without HP2). 3. Remove the thermostat housing crossover. Refer to Thermostat Housing Crossover Replacement (6.6L (LB7) Engine) or Thermostat Housing Crossover Replacement (6.6L (LLY) Engine). 4. Remove the fan clutch. Refer to Fan Clutch Replacement. 5. Remove the crankshaft balancer. Refer to Crankshaft Balancer Replacement in Engine Mechanical – 6.6 L. 6. Remove the oil cooler inlet pipe to water pump nuts. 7. Remove the engine wiring harness retainer from the inner stud. 8. Remove the water pump bolts. Note the location of the bolts. The bolts are three different lengths. 9. Remove the water pump. 10. Remove the water pump outlet pipe gasket. 11. If required, clean and inspect the water pump. Refer to Water Pump Cleaning and Inspection in Engine Mechanical-6.6L. Installation Procedure 1. Lubricate the water pump O-ring with engine oil. 2. Install the water pump. Installation Procedure 1. Lubricate the water pump O-ring with engine oil. 2. Install the water pump. 4. Install the water pump to oil cooler inlet pipe gasket. 5. Install the engine wiring harness retainer on the water pump outlet pipe inner stud.