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Water pump Go to Step 20 Go to Step 13 13 1. Pressure test the cooling system. Refer to Cooling System Leak Testing. 2. With the cooling system pressurized, visually inspect the components listed in Are any leaks present? Go to Step 20 Go to Step 14 14 Pressure test the coolant pressure cap. Refer Go to Step 16 Go to Step 21 15 Pressure test the coolant pressure cap. Refer Go to Step 32 Go to Step 21 16 Inspect for the following conditions: A coolant smell inside of the vehicle Coolant in the HVAC module drain tube Coolant on the vehicle floor covering Go to Step 22 Go to Step 17 17 Inspect the underside of the engine oil fill cap Go to Step 18 Go to Step 19 18 Inspect the engine oil fluid level indicator for Go to Step 23 Go to Step 19 19 Inspect the automatic transmission oil fluid
2007 Hummer H3 2007 ENGINE Engine Cooling - H3
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