Gas Engine

Fig 1: COOLING SYSTEM FLOW - 2.4L

Courtesy of CHRYSLER LLC

1 - WATER PUMP	7 - COMBINATION COOLER
2 - RETURN TUBE	8 - RADIATOR
3 - WATER PLENUM	9 - SECONDARY THERMOSTAT
4 - PRIMARY THERMOSTAT	10 - CYLINDER BLOCK
5 - TRANSMISSION	11 - CYLINDER HEAD
6 - INTERNAL TRANSMISSION COOLER	12 - HEATER CORE

The primary purpose of a cooling system is to maintain engine temperature in a range that will provide satisfactory engine performance and emission levels under all expected driving conditions.

Fig 2: Cooling System Operation - 2.7L

Courtesy of CHRYSLER LLC

1 - HEATER CORE

2 - COOLANT PRESSURE CONTAINER

3 - COOLANT OUTLET CONNECTOR

4 - ENGINE

5 - WATER PUMP

6 - THERMOSTAT

7 - RADIATOR

The cooling system also provides hot water (coolant) for heater performance.

Fig 3: COOLING FLOW - 3.5L W/ENGINE OIL COOLER ENGINE

Courtesy of CHRYSLER LLC

1 - RADIATOR

2 - HOT BOTTLE/COOLANT RECOVERY BOTTLE

3 - HEATER CORE

4 - CYLINDER HEAD

5 - CYLINDER BLOCK

6 - WATER PUMP

7 - ENGINE OIL COOLER

8 - THERMOSTAT