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REPAIR INSTRUCTIONS COOLING SYSTEM DRAINING AND FILLING (STATIC FILL) Tools Required J 26568 Coolant and Battery Tester. See Special Tools. J 38185 Hose Clamp Pliers. Draining Procedure 1. Park the vehicle on a level surface. 2. Allow the engine to cool. 3. Remove the radiator cap. 4. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle . 5. Remove the engine shield. Refer to Engine Shield Replacement . 6. Place a drain pan under the lower radiator hose connection at the bottom of the radiator. 7. Using J 38185 slide the hose clamp back on the lower radiator hose. See Special Tools. 8. Slowly remove the lower radiator hose and drain the coolant into the drain pan. 9. Inspect the engine coolant for the following: Is the repair complete? Go to Step 16 - 15 Replace the fan blades. Refer to Fan Go to Step 16 - 16 Operate the fan clutch to verify proper System OK Go to Step 2 CAUTION: To avoid being burned, do not remove the radiator cap or surge tank cap while the engine is hot. The cooling IMPORTANT: Draining the cooling system with the pressure cap installed will siphon the coolant from the overflow tank.
2007 Hummer H3 2007 ENGINE Engine Cooling - H3
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