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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1451 (Engine Cooling System) >> Repair Instructions >> Draining and Filling Cooling System (LL8) >> Coolant Filling Procedure

Coolant Filling Procedure

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
    NOTE: 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 plug.
  2. Install the lower radiator hose.
  3. Using J 38185  slide the clamp into the original position.
  4. Lower the vehicle.
    5. IMPORTANT: 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 Capacities - Approximate Fluid in General Information.
  5. Remove coolant recovery reservoir cap.
  6. Fill the coolant recovery reservoir with the remaining coolant.
  7. Install coolant recovery reservoir cap.
  8. Install the radiator cap.
  9. Start the engine.
  10. Run the engine at 2,000-2,500 RPM until the engine reaches normal operating temperature.
  11. Allow the engine to idle for 3 minutes.
  12. Shut the engine OFF.
  13. Allow the engine to cool.
  14. Top off the coolant recovery reservoir as necessary.
  15. Rinse away any excess coolant from the engine and the engine compartment.
  16. Inspect the cooling system for leaks.
  17. Inspect the concentration of the engine coolant using J 26568  . See Special Tools and Equipment .
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