Manual:HUMMER Hummer H3 Base 2010Page:9946 / 37523



Filling Procedure — 2010 Hummer H3 Base, Automatic Service Manual

Filling Procedure

CAUTION: The procedure below must be followed. Improper coolant level could result in a low or high coolant level condition, causing engine damage.
  1. If a complete block drain was required, install the coolant heater. Refer to Coolant Heater Replacement (LLR)  or Coolant Heater Replacement (LH9) .
  2. Install the lower radiator hose.
  3. Using the J 38185  slide the lower radiator hose clamp into the original position. See Special Tools .
  4. Lower the vehicle.
  5. NOTE: Slowly add a mixture of 50/50 DEX-COOL antifreeze and deionized water to the cooling system through the top of the radiator until full. Refer to Approximate Fluid Capacities .
  6. Install the radiator cap.
  7. Remove coolant recovery reservoir cap.
  8. Fill the coolant recovery reservoir with the remaining coolant.
  9. Install coolant recovery reservoir cap.
  10. Start the engine.
  11. Run the engine at 2,000-2,500 RPM until the engine reaches normal operating temperature.
  12. Allow the engine to idle for 3 minutes.
  13. Shut the engine off.
  14. Allow the engine to cool.
  15. Top off the coolant recovery reservoir as necessary.
  16. Inspect the cooling system for leaks.
  17. Rinse away any excess coolant from the engine and the engine compartment.
  18. Inspect the concentration of the engine coolant using J 26568  . See Special Tools .