2004 Ford Mustang SVT Supplement 1st Printing - Page 18

Maintenance 3. Step back while the pressure releases. 4. When you are sure that all the pressure has been released, use the cloth to turn it counterclockwise and remove the cap. Engine coolant refill procedure The following procedure should be used when refilling the cooling system after it has been drained or become extremely low. 1. Remove the pressure relief cap from the engine coolant reservoir as previously outlined. 2. Slowly add a 50/50 mixture of engine coolant and distilled water to the engine coolant reservoir until the coolant level is at the "cold fill level" as listed on the reservoir. 3. Reinstall the pressure relief cap. 4. Start and idle the engine until the upper radiator hose is warm (this indicates the thermostat is open and coolant is flowing through the entire system). 5. Shut the engine off and let it cool. 6. Remove the pressure relief cap from the engine coolant reservoir as previously outlined. 7. Add a 50/50 mixture of engine coolant and distilled water to the engine coolant reservoir until the coolant level is at the "cold fill level" as listed on the reservoir. 8. Reinstall the pressure relief cap. 9. Check the coolant level in the reservoir before you drive your vehicle the next few times (with the engine cool). 10. If necessary, add a 50/50 mixture of engine coolant and distilled water to the engine coolant reservoir until the coolant level is at the "cold fill level" as listed on the reservoir. After any coolant has been added, check the coolant concentration (refer to Checking Engine Coolant). If the concentration is not 50/50 (protection to -34° F/-36° C), drain some coolant and adjust the concentration. It may take several drains and additions to obtain a 50/50 coolant concentration. 18 2004 Mustang (mus) Supplement USA English (fus)