5. Coolant system cleaning.
When the cooling system circuit is fouled with water scales or sludge particles,
cooling efficiently will be lowered. Periodically clean the circuit interior with a cleaner.
a. Drain system coolant in accordance with instructions listed in Replace Engine Coolant (4)
steps a through d.
b. Flush the coolant system with fresh water.
Remove water from the coolant system in accordance with steps a through d in Replace
Engine Coolant Procedures.
d. Add system coolant in accordance with instructions listed in Add Engine Coolant (3)
steps a through h.
Figure 9. Radiator Cap and Radiator Fill Port
Figure 10. Radiator Drain Plug