Pacifica V6-3.8L VIN L (2005)
Oil Cooler: Description and Operation
OIL COOLER & LINES
DESCRIPTION
An engine oil cooler is used on 3.8L engines (Heavy Duty Cooling Only) (Fig. 126). The cooler is a coolant-to-oil type and mounted between the oil
filter and engine block.
OPERATION
Engine oil travels from the oil filter and into the oil cooler. Engine oil then exits the cooler into the main gallery. Engine coolant flows into the cooler
from the heater return tube and exits into the water pump inlet.