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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1310 (Engine Cooling System -- 5.7L) >> Repair Instructions >> Draining and Filling Cooling System >> Draining Procedure >> Filling Procedure

Filling Procedure

WARNING: This page is about a different car, the 2004 Chevrolet Corvette. 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. Raise and support the vehicle.
    2. Fig 1: Radiator Drain Cock
    GM457901Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
  2. Close the radiator drain cock.

    Tighten:  Tighten the radiator drain cock to 2 N.m (18 lb in).

  3. Lower the vehicle.
    4. IMPORTANT: Use a 50/50 mixture of DEX-COOL antifreeze and deionized water.
  4. Slowly fill the cooling system with a 50/50 coolant mixture. Refer to Capacities - Approximate Fluid in General Information.
  5. Install the coolant pressure cap.
  6. Start the engine.
  7. Run the engine at 2,000-2,500 RPM until the engine reaches normal operating temperature.
  8. Allow the engine to idle for 3 minutes.
  9. Shut the engine off.
  10. Allow the engine to cool.
  11. Top off the coolant as necessary.
  12. Inspect the concentration of the engine coolant using the J 26568  . See Special Tools and Equipment .
  13. Rinse away any excess coolant from the engine and the engine compartment.
  14. Inspect the cooling system for leaks.
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