2014 JEEP GRAND CHEROKEE check engine

Engine Coolant Checks
Check the engine coolant (antifreeze) protection every
12 months (before the onset of freezing weather, where
applicable). If the engine coolant (antifreeze) is dirty or
rusty in appearance, the system should be drained,
flushed and refilled with fresh coolant. Check the front of
the A/C condenser (if equipped) or radiator for any
accumulation of bugs, leaves, etc. If dirty, clean by gently
spraying water from a garden hose vertically down the
face of the A/C condenser (if equipped) or the back of the
radiator core.
Check the engine cooling system hoses for brittle rubber,
cracking, tears, cuts and tightness of the connection at the
coolant recovery bottle and radiator. Inspect the entire
system for leaks.With the engine at normal operating temperature (but
not running), check the cooling system pressure cap for
proper vacuum sealing by draining a small amount of
engine coolant (antifreeze) from the radiator drain cock.
The radiator drain cock is located in the lower radiator
tank. If the cap is sealing properly, the engine coolant
(antifreeze) will begin to drain from the coolant expan-
sion bottle. DO NOT REMOVE THE COOLANT PRES-
SURE CAP WHEN THE COOLING SYSTEM IS HOT.
Cooling System — Drain Flush And Refill
If the engine coolant (antifreeze) is dirty or contains a
considerable amount of sediment, clean and flush with a
reliable cooling system cleaner. Follow with a thorough
rinsing to remove all deposits and chemicals. Properly
dispose of old engine coolant (antifreeze).
Refer to the “Maintenance Schedule” for the proper
maintenance intervals.
5
MAINTAINING YOUR VEHICLE 85

Disposal Of Used Engine Coolant
Used ethylene glycol-based engine coolant (antifreeze) is
a regulated substance requiring proper disposal. Check
with your local authorities to determine the disposal
rules for your community. To prevent ingestion by ani-
mals or children, do not store ethylene glycol-based
engine coolant (antifreeze) in open containers or allow it
to remain in puddles on the ground. If ingested by a child
or pet, seek emergency assistance immediately. Clean up
any ground spills immediately.
Points To Remember
NOTE:When the vehicle is stopped after a few miles/
kilometers of operation, you may observe vapor coming
from the front of the engine compartment. This is nor-
mally a result of moisture from rain, snow, or high humidity accumulating on the radiator and being vapor-
ized when the thermostat opens, allowing hot engine
coolant (antifreeze) to enter the radiator.
If an examination of your engine compartment shows
no evidence of radiator or hose leaks, the vehicle may be
safely driven. The vapor will soon dissipate.
•
Do not overfill the coolant expansion bottle.
• Check the coolant freeze point in the radiator and
in the coolant expansion bottle. If engine coolant
(antifreeze) needs to be added, the contents of the
coolant expansion bottle must also be protected
against freezing.
• If frequent engine coolant (antifreeze) additions are
required, the cooling system should be pressure tested
for leaks.
5
MAINTAINING YOUR VEHICLE 89

•Maintain engine coolant (antifreeze) concentration at
a minimum of 50% OAT coolant (conforming to
MS-12106) 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.
90 MAINTAINING YOUR VEHICLE

Once A Month Or Before A Long Trip:
•Check engine oil level
• Check windshield washer fluid level
• Check the tire inflation pressures and look for unusual
wear or damage
• Check the fluid levels of the coolant reservoir, brake
master cylinder, power steering and transmission as
needed
• Check function of all interior and exterior lights
Required Maintenance
Refer to the Maintenance Schedules on the following
pages for required maintenance.At Every Oil Change Interval As Indicated By Oil Change Indicator System:
•Change oil and filter.
• Completely fill the Diesel Exhaust Fluid tank.
• Rotate the tires. Rotate at the first sign of irregu-
lar wear, even if it occurs before the oil indicator
system turns on.
• Inspect battery and clean and tighten terminals as
required.
• Inspect automatic transmission fluid if equipped
with dipstick.
• Inspect brake pads, shoes, rotors, drums, hoses
and park brake.
•
Inspect engine cooling system protection and hoses.
• Inspect exhaust system.
• Inspect engine air cleaner if using in dusty or
off-road conditions.
6
MAINTENANCE SCHEDULE 101

Once A Month Or Before A Long Trip:
•Check engine oil level
• Check windshield washer fluid level
• Check the tire inflation pressures and look for unusual
wear or damage
• Check the fluid levels of the coolant reservoir, brake
master cylinder, power steering and transmission as
needed
• Check function of all interior and exterior lights
Required Maintenance
Refer to the Maintenance Schedules on the following
pages for required maintenance.At Every Oil Change Interval As Indicated By Oil Change Indicator System:
•Change oil and filter.
• Completely fill the Diesel Exhaust Fluid tank.
• Rotate the tires. Rotate at the first sign of irregu-
lar wear, even if it occurs before the oil indicator
system turns on.
• Inspect battery and clean and tighten terminals as
required.
• Inspect automatic transmission fluid if equipped
with dipstick.
• Inspect brake pads, shoes, rotors, drums, hoses
and park brake.
•
Inspect engine cooling system protection and hoses.
• Inspect exhaust system.
• Inspect engine air cleaner if using in dusty or
off-road conditions.
6
MAINTENANCE SCHEDULE 105

Adding Engine Coolant (Antifreeze).............87
Adding Fuel ..............................63
Airbag Light .............................19
Air Cleaner, Engine (Engine Air Cleaner Filter) .....77
Antifreeze (Engine Coolant) ...................86
Capacities .............................93
Disposal ..............................89
Anti-Lock Warning Light .....................11
Automatic Transmission Fluid Type .............................96
Axle Fluid ...............................96
Battery .................................84
Brake Fluid ..............................96
Brake System .............................91
Fluid Check ............................91
Master Cylinder .........................91
Warning Light ..........................15 Capacities, Antifreeze (Engine Coolant)
...........93
Capacities, Fluid ...........................93
Caps, Filler Oil (Engine) ............................75
Radiator (Coolant Pressure) .................88
Charge Air Cooler .........................90
Coolant Pressure Cap (Radiator Cap) ............88
Cooling System ...........................84
Adding Coolant (Antifreeze) ................87
Coolant Capacity ........................93
Coolant Level ...........................85
Disposal of Used Coolant ..................89
Drain, Flush, and Refill ....................85
Points to Remember ......................89
Pressure Cap ...........................88
Radiator Cap ...........................88
Selection of Coolant (Antifreeze) .............86
110 INDEX

Diesel Fuel...............................44
Diesel Fuel Requirements ....................44
Bulk Storage of .........................66
Diesel Fuel System, Re-Priming ................81
Disposal Antifreeze (Engine Coolant) .................89
Draining Fuel/Water Separator Filter ............78
Electronic Vehicle Information Center (EVIC) ......18
Engine ..................................72
Air Cleaner ............................77
Block Heater ...........................36
Break-In Recommendations ..................7
Compartment ...........................72
Coolant (Antifreeze) ......................94
Identification ...........................72
Idling ................................40 Oil ..................................74
Oil Filler Cap
...........................75
Temperature Gauge ......................14
Filters Air Cleaner ............................77
Engine Fuel ............................78
Engine Oil .............................76
Engine Oil Disposal ......................76
Flashers Turn Signal ............................12
Fluid, Brake ..............................96
Fluid Capacities ...........................93
Fluid Level Checks Brake ................................91
Fluids, Lubricants and Genuine Parts ............94
Fog Lights ...............................12
7
INDEX 111

Fuel...................................44
Adding ...............................63
Diesel ................................44
Filter .................................78
Gauge ................................16
Requirements ...........................44
Specifications ...........................45
Tank Capacity ..........................93
Fueling .................................63
Gauges Coolant Temperature .....................14
Fuel .................................16
Speedometer ...........................12
Tachometer ............................11
Voltmeter ..............................39
Gross Axle Weight Rating ....................50
Gross Vehicle Weight Rating ..................49High Beam Indicator
........................12
Hitches Trailer Towing ..........................52
Information Center, Vehicle ...................21
Instrument Cluster .........................10
Intervention Regeneration Strategy ..............26
Lights Airbag ................................19
Anti-Lock .............................11
Brake Warning ..........................15
Fog ..................................12
High Beam Indicator ......................12
Malfunction Indicator (Check Engine) ..........12
Seat Belt Reminder .......................11
Security Alarm ..........................20
112 INDEX