Engine Cooling System: Operation: 2.4L/3.6L

Fig 1: Cooling System Flow - 2.4L

Courtesy of CHRYSLER GROUP, LLC

COOLING SYSTEM FLOW - 2.4L

• 1 - WATER PUMP
• 2 - RETURN TUBE
• 3 - WATER PLENUM
• 4 - PRIMARY THERMOSTAT
• 5 - TRANSMISSION
• 6 - INTERNAL TRANSMISSION COOLER
• 7 - COMBINATION COOLER
• 8 - RADIATOR
• 9 - SECONDARY THERMOSTAT
• 10 - CYLINDER BLOCK
• 11 - CYLINDER HEAD
• 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 Flow - 3.6L Phoenix

Courtesy of CHRYSLER GROUP, LLC

COOLING SYSTEM FLOW - 3.6L

• 1 - RADIATOR
• 2 - RH CYLINDER HEAD
• 3 - THERMOSTAT
• 4 - WATER CROSSOVER
• 5 - LH CYLINDER HEAD
• 6 - REAR HEATER CORE
• 7 - FRONT HEATER CORE
• 8 - OIL COOLER
• 9 - WATER PUMP
• 10 - CYLINDER BLOCK

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