Envoy 4WD V8-5.3L VIN M (2005)
Water Pump: Service and Repair
Water Pump Replacement
Water Pump Replacement (LM4)
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Tools Required
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J 38185 Hose Clamp Pliers
Removal Procedure
1. Drain the cooling system.
2. Loosen the air cleaner outlet duct clamps at the following locations:
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Throttle body
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Mass air flow (MAF)/intake air temperature (IAT) sensor
3. Remove the air cleaner outlet duct bolt and duct.
4. Remove the accessory drive belt tensioner.
5. Remove the cooing fan and shroud.
6. Using the J 38185, reposition the inlet hose clamp at the water pump.
7. Remove the inlet hose from the water pump.
