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Home >> Buick >> 2015 >> Regal GS, AWD >> Repair and Diagnosis >> Engine Mechanical >> Cooling System (Mechanical) >> Engine Cooling System >> Repair Instructions >> Cooling System Draining and Filling (Static Fill) >> Filling Procedure

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. Raise and support the vehicle.
    2. Fig 1: Radiator Drain Cock
    GM2213415Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Fastener Caution .

  2. Tighten the radiator drain cock to 2 N.m (18 lb in).
  3. Lower the vehicle.
    4. NOTE:

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

  4. 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 .
  5. 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.
  6. Start the engine and allow to the engine to idle in PARK or NEUTRAL with the parking brake engaged.
  7. Slowly fill the coolant mixture until the level stabilizes at the base of the radiator surge tank.
  8. Install the coolant pressure cap.
  9. Raise the engine RPM to 2500 rpm for 3040 seconds.
  10. Shut the engine OFF.
  11. 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.
  12. Inspect the concentration of the engine coolant using the J 26568  Coolant and Battery Fluid Tester
  13. Inspect and if necessary, fill the coolant reservoir bottle as necessary.
  14. Rinse away any excess coolant from the engine and the engine compartment
  15. Inspect the cooling system for leaks.
  16. Top off the radiator surge tank if necessary.
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