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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 357 (Engine Cooling System) >> Repair Instructions >> Cooling System Draining and Filling (Static) >> Filling Procedure

Filling Procedure

WARNING: This page is about a different car, the 2017 GMC Acadia. However, it is still accessible from the selected car via links, so may be relevant.
    CAUTION:

    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. Refer to Lifting and Jacking the Vehicle
  2. Fig 1: Radiator Drain Cock
    GM4371913Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Fastener Caution .

  3. Tighten the radiator drain cock (1). Refer to Radiator Drain Cock Replacement 
  4. Lower the vehicle.
  5. NOTE:

    Use a 50/50 mixture of DEX-COOL antifreeze and clean drinkable water.

  6. Slowly fill the radiator with a 50/50 coolant mixture until the coolant level reaches the base of the radiator surge tank. Refer to Approximate Fluid Capacities
  7. Allow 30 seconds for the coolant level to stabilize and continue to fill the coolant filler neck until the level stabilizes for at least 2 minutes.
  8. Start the engine and allow to the engine to idle in PARK or NEUTRAL with the parking brake engaged.
  9. Slowly fill the coolant mixture until the level stabilizes at the base of the radiator surge tank.
  10. Install the coolant pressure cap.
  11. Raise the engine RPM to 2500 RPM for 30-40 seconds.
  12. Shut the engine OFF.
  13. Allow the engine to cool, remove coolant fill cap and repeat steps 4-10 until the coolant level has completely stabilized within the radiator surge tank.
  14. Inspect the concentration of the engine coolant using the GE-26568  Coolant and Battery Fluid Tester.
  15. Inspect and if necessary, fill the coolant reservoir bottle as necessary.
  16. Rinse away any excess coolant from the engine and the engine compartment.
  17. Inspect the cooling system for leaks.
  18. Top off the radiator surge tank if necessary.