Operation CHARM: Car repair manuals for everyone.

Coolant Condition and Protection Test

WARNING:
SCALDING HOT COOLANT, WATER OR STEAM

NEVER remove the radiator cap under any conditions while the engine is operating. Failure to follow these instructions could result in personal injury and/or damage to the cooling system or engine. To avoid having scalding hot coolant or steam blow out of the radiator, use extreme care when removing the radiator cap from a hot radiator. Wait until the engine has cooled, then wrap a thick cloth around the radiator cap and turn it slowly to the first stop. Step back while the pressure is released from the cooling system. When you are certain all the pressure has been released, press down on the radiator cap (with a cloth), turn, and remove.

Corrosion Damage/Cooling System Requirements
This engine has aluminum components and requires a special corrosion inhibiting coolant to avoid cooling system damage.

PROCEDURES
1. Turn the engine OFF.
2. Check engine coolant for dirty or rusty appearance. Replace dirty or rusty coolant to protect the cooling system from corrosion damage. Replace the coolant or recycle using Rotunda Coolant Recycler 181-00003 or equivalent.
3. If coolant condition is satisfactory, check coolant concentration for proper protection level. Use Rotunda Battery and AntiFreeze Tester 014-R1060 or equivalent or a hydrometer for testing. Maintain a protection level of at least -30°C (-20°F) to preserve anti-rust corrosion protection and ensure proper engine operating temperature.
4. If concentration level is low, partially drain the coolant. Add 100 percent concentration of Premium Cooling System Fluid E2FZ-19549-AA or B in Oregon, F5FZ-19549-CC, in Canada, CXC-8-B, Recycled Coolant, or equivalent that meets Ford specification ESE-M97B44-A to obtain the recommended protection level.
5. Wet the rubber sealing surface of the pressure relief cap before installing the pressure relief cap tightly on degas bottle.