Envoy 4WD V8-5.3L VIN M (2005)
Water Pump: Service and Repair
Water Pump Replacement - Auxiliary
Water Pump Replacement - Auxiliary
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Tools Required
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J 38185 Hose Clamp Pliers
Removal Procedure
1. Partially drain the cooling system.
2. If equipped with a L6 engine, remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement.
3. If equipped with a V8 engine, remove the air conditioning accumulator. Refer to Accumulator Replacement.
4. Use J 38185 to reposition the front heater inlet hose clamp from the auxiliary heater water pump.
5. Remove the front heater inlet hose (1) from the auxiliary heater water pump.
6. Use J 38185 to reposition the top heater inlet hose clamp from the auxiliary heater water pump.
7. Remove the top heater inlet hose (2) from the auxiliary heater water pump.
8. Disconnect the auxiliary heater water pump electrical connector.