Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Cooling System Bleeding: Intrigue
Ensure the radiator drain cock is closed and the engine block drain is installed. Open the cooling system bleeder screws. Slowly fill the cooling system with a 50/50 mixture of Dex-Cool® coolant and deionized water. Close the cooling system bleeder screws. Install the coolant pressure cap. Start the engine. Run the engine at 2000-2500 RPM until the engine reaches normal operating temperature. Allow the engine to idle for 3 minutes. Turn the engine off. Allow the engine to cool. Top off the coolant as necessary. Using Coolant Tester (J-23688) check concentration of coolant. Inspect cooling system for leaks.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.