Coolant Filling Procedure

Tools Required 

• J 38185  Hose Clamp Plier
• J 26568  Coolant and Battery Tester

1. If a complete block drain was required, install the coolant heater. Refer to COOLANT HEATER REPLACEMENT (4.2L ENGINE)   or COOLANT HEATER REPLACEMENT (5.3L ENGINE)   .
2. Install the lower radiator hose.
3. Using the J 38185  slide the clamp into the original position.
4. Lower the vehicle.
   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.
5. Install the radiator cap.
6. Remove coolant recovery reservoir cap.
7. Slowly add a mixture of 50/50 DEX-COOL antifreeze and deionized water to the cooling system through the coolant recovery reservoir.
8. Fill the coolant recovery reservoir with the remaining coolant.
9. Install coolant recovery reservoir cap.
10. Install the coolant air bleed hose to the throttle body.
11. Using the J 38185  slide the coolant air bleed hose clamp back to the original position.
12. Start the engine.
13. Run the engine at 2,000-2,500 RPM until the engine reaches normal operating temperature.
14. Allow the engine to idle for 3 minutes.
15. Shut the engine off.
16. Allow the engine to cool.
17. Top off the coolant recovery reservoir as necessary.
18. Inspect the cooling system for leaks.
19. Rinse away any excess coolant from the engine and the engine compartment.
20. Inspect the concentration of the engine coolant using J 26568  .