Home Auto Repair 2003 Chevrolet Draining and Filling Cooling System

2003 Chevrolet Draining and Filling Cooling System

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Download 2003 Chevrolet Chevy C Silverado – 2WD Draining and Filling Cooling System Important If you do not follow the procedure below, a low or high coolant level condition and/or vehicle damage could result. 1. Park the vehicle on a level surface. 2. Follow the steps below in order to remove the surge tank fill cap: A. Slowly rotate the cap counterclockwise. B. Stop rotating and allow the hissing to stop. C. After all hissing stops, continue turning counterclockwise in order to remove the cap. 3. Open the radiator drain cock. 4. Allow the system to drain completely. 5. Inspect the engine coolant for the following: {Discolored – follow the flush procedure below. {Normal in appearance – continue with the next step. 6. Close the radiator drain cock. 7. Fill the system through the surge tank opening. 8. Pre-mix a 50 to 60 percent solution of DEX-COOL® and clean, drinkable water. 9. Slowly add the pre-mixed solution to the surge tank until the level is slightly above the surge tank split line. 10. Start the engine. 11. Idle the engine for 1 minute. 12. Loosely install the surge tank cap. Do not allow the system to build uppressure. 13. Cycle the engine from idle to 3000 RPM in 30 second intervals until the engine coolant reaches 99°C (210°F) and the thermostat opens. 14. Shut off the engine. 15. Refer to step 2 in order to remove the surge tank cap. 16. Start the engine. 17. Idle the engine for 1 minute.