2015 Jeep Grand Cherokee Owner Manual Supplement - Page 96

2015 Jeep Grand Cherokee Manual

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94 MAINTAINING YOUR VEHICLE • If frequent engine coolant (antifreeze) additions are Charge Air Cooler - Inter-Cooler required, the cooling system should be pressure tested The charge air cooler is positioned in front of the radiator for leaks. and the air conditioner condenser. Air enters the engine • Maintain engine coolant (antifreeze) concentration at a through the air cleaner and passes through the turbominimum of 50% OAT coolant (conforming to charger, where it is pressurized. This pressurized air MS.90032) and distilled water for proper corrosion rapidly reaches high temperature. The air is then directed protection of your engine which contains aluminum through a hose to the charge air cooler and through another hose to the intake manifold of the engine. This components. cooling process enables more efficient burning of fuel • Make sure that the coolant expansion bottle overflow resulting in fewer emissions. hoses are not kinked or obstructed. To guarantee optimum performance of the system, keep • Keep the front of the radiator clean. If your vehicle is the surfaces of the charge air cooler, condenser and equipped with air conditioning, keep the front of the radiator clean and free of debris. Periodically check the condenser clean. hoses leading to and from the charge air cooler for cracks • Do not change the thermostat for Summer or Winter or loose clamps resulting in loss of pressure and reduced operation. If replacement is ever necessary, install ONLY engine performance. the correct type thermostat. Other designs may result in unsatisfactory engine coolant (antifreeze) performance, poor gas mileage, and increased emissions.

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•
If frequent engine coolant (antifreeze) additions are
required, the cooling system should be pressure tested
for leaks.
•
Maintain engine coolant (antifreeze) concentration at a
minimum
of
50%
OAT
coolant
(conforming
to
MS.90032) and distilled water for proper corrosion
protection of your engine which contains aluminum
components.
•
Make sure that the coolant expansion bottle overflow
hoses are not kinked or obstructed.
•
Keep the front of the radiator clean. If your vehicle is
equipped with air conditioning, keep the front of the
condenser clean.
•
Do not change the thermostat for Summer or Winter
operation. If replacement is ever necessary, install ONLY
the correct type thermostat. Other designs may result in
unsatisfactory engine coolant (antifreeze) performance,
poor gas mileage, and increased emissions.
Charge Air Cooler — Inter-Cooler
The charge air cooler is positioned in front of the radiator
and the air conditioner condenser. Air enters the engine
through the air cleaner and passes through the turbo-
charger, where it is pressurized. This pressurized air
rapidly reaches high temperature. The air is then directed
through a hose to the charge air cooler and through
another hose to the intake manifold of the engine. This
cooling process enables more efficient burning of fuel
resulting in fewer emissions.
To guarantee optimum performance of the system, keep
the surfaces of the charge air cooler, condenser and
radiator clean and free of debris. Periodically check the
hoses leading to and from the charge air cooler for cracks
or loose clamps resulting in loss of pressure and reduced
engine performance.
94
MAINTAINING YOUR VEHICLE