Operation CHARM: Car repair manuals for everyone.

Cooling System






Cooling System

The cooling system regulates the engine operating temperature. It allows the engine to reach normal operating temperature as quickly as possible, maintains normal operating temperature and prevents overheating.

The cooling system also provides a means of heating the passenger compartment. The cooling system is pressurized and uses a centrifugal water pump to circulate coolant throughout the system.






The engine cooling systems primary purpose is to maintain engine temperature in a range that will provide satisfactory engine performance and emission levels under all expected driving conditions. It also provides hot coolant for heater performance. It does this by transferring heat from engine metal to coolant, moving this heated coolant to the radiator (7), and then transferring this heat to the ambient air.

When the engine is cold: the thermostat is closed, the cooling system has no flow through the radiator (7). The coolant bypass flows through the engine only.

When the engine is warm: the thermostat is open, the cooling system has bypass flow and coolant flow through radiator (7).

The cooling system consists of:

Electric cooling fan.

Transmission oil cooler.

A aluminum core radiator with plastic tanks (7).

Coolant recovery reservoir (8).

Thermostat.

Coolant.

Water pump (6).

Hoses and hose clamps.