2005 JEEP GRAND CHEROKEE radiator cap

have an authorized technician inspect the complete ex-
haust system and adjacent body areas for broken, dam-
aged, deteriorated, or mispositioned parts. Open seams
or loose connections could permit exhaust fumes to seep
into the passenger compartment. In addition, inspect the
exhaust system each time the vehicle is raised for lubri-
cation or oil change. Replace as required.
Cooling System
WARNING!
You or others can be badly burned by hot antifreeze/
coolant or steam from your radiator. If you see or
hear steam coming from under the hood, don’t open
the hood until the radiator has had time to cool.
Never try to open a cooling system pressure cap
when the radiator or coolant bottle is hot.
Engine Coolant Checks
Check antifreeze/coolant protection every 12 months
(before the onset of freezing weather, where applicable).
If antifreeze/coolant is dirty or rusty in appearance, the
system should be drained, flushed and refilled with fresh
antifreeze/coolant. Check the front of the A/C condenser
for any accumulation of bugs, leaves, etc. If dirty, clean by
gently spraying water from a garden hose vertically
down the face of the condenser.
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
coolant from the radiator drain cock. If the cap is sealing
properly, the antifreeze/coolant will begin to drain from
MAINTAINING YOUR VEHICLE 329
7

the coolant recovery bottle. DO NOT REMOVE THE
COOLANT PRESSURE CAP WHEN THE COOLING
SYSTEM IS HOT.
Cooling System — Drain, Flush, And Refill
At the intervals shown in the appropriate “Maintenance
Schedule,” the system should be drained, flushed, and
refilled.
If the solution is dirty and contains a considerable
amount of sediment, clean and flush with reliable cooling
system cleaner. Follow with a thorough rinsing to remove
all deposits and chemicals. Properly dispose of old
antifreeze/coolant solution.
Selection Of Engine Coolant
Use only the manufacturer’s recommended antifreeze/
coolant, refer to Recommended Fluids, Lubricants, and
Genuine Parts for correct antifreeze/coolant type.
CAUTION!
Mixing of antifreeze/coolant other than the specified
HOAT antifreeze/coolant may result in decreased
corrosion protection and engine damage. If a non-
HOAT antifreeze/coolant is introduced into the cool-
ing system in an emergency, it should be replaced
with the specified antifreeze/coolant as soon as pos-
sible.
Do not use plain water alone or alcohol base
antifreeze/coolant products. Do not use additional
rust inhibitors or antirust products, as they may not
be compatible with the antifreeze/coolant and may
plug the radiator.
This vehicle has not been designed for use with
Propylene Glycol based antifreeze/coolant. Use of
Propylene Glycol base antifreeze/coolant is not rec-
ommended.
330 MAINTAINING YOUR VEHICLE

Adding Engine Coolant
Your vehicle has been built with an improved antifreeze/
coolant that allows extended maintenance intervals. This
antifreeze/coolant can be used up to 5 Years or 100,000
miles before replacement. To prevent reducing this ex-
tended maintenance period, it is important that you use
the same antifreeze/coolant throughout the life of your
vehicle. Please review these recommendations for using
Hybrid Organic Additive Technology (HOAT)
antifreeze/coolant.
When adding antifreeze/coolant, a minimum solution of
50% recommended Mopar Antifreeze/ Coolant 5 Year/
100,000 Mile Formula HOAT (Hybrid Organic Additive
Technology), or equivalent, in water should be used. Use
higher concentrations (not to exceed 70%) if temperatures
below -34°F (-37°C) are anticipated.Use only high purity water such as distilled or deionized
water when mixing the water/antifreeze (coolant) solu-
tion. The use of lower quality water will reduce the
amount of corrosion protection in the engine cooling
system.
Please note that it is the owner’s responsibility to main-
tain the proper level of protection against freezing ac-
cording to the temperatures occurring in the area where
the vehicle is operated.
NOTE:Mixing antifreeze/coolant types will decrease
the life of the antifreeze/coolant and will require more
frequent antifreeze/coolant changes.
Cooling System Pressure Cap
The cap must be fully tightened to prevent loss of
antifreeze/coolant, and to insure that antifreeze/coolant
will return to the radiator from the coolant recovery tank.
MAINTAINING YOUR VEHICLE 331
7

The cap should be inspected and cleaned if there is any
accumulation of foreign material on the sealing surfaces.
WARNING!
The warning words DO NOT OPEN HOT on the
cooling system pressure cap are a safety precaution.
Never add antifreeze/coolant when the engine is
overheated. Do not loosen or remove the cap to cool
an overheated engine. Heat causes pressure to build
up in the cooling system. To prevent scalding or
injury, do not remove the pressure cap while the
system is hot or under pressure.
Disposal of Used Engine Coolant
Used ethylene glycol-based antifreeze/coolant is a regu-
lated substance requiring proper disposal. Check with
your local authorities to determine the disposal rules for
your community. To prevent ingestion by animals andchildren, do not store ethylene glycol-based antifreeze/
coolant in open containers or allow it to remain in
puddles on the ground. If ingested by a child, contact a
physician immediately. Clean up any ground spills im-
mediately.
Engine Coolant Level
The coolant bottle provides a quick visual method for
determining that the antifreeze/coolant level is adequate.
With the engine idling, and warm to normal operating
temperature, the level of the antifreeze/coolant in the
bottle should be between the ranges indicated on the
bottle.
The radiator normally remains completely full, so there is
not need to remove the radiator cap unless checking for
antifreeze/coolant freeze point or replacing antifreeze/
coolant. Advise your service attendant of this. As long as
the engine operating temperature is satisfactory, the
coolant bottle need only be checked once a month.
332 MAINTAINING YOUR VEHICLE

Auxiliary Electrical Outlet.................. 148
Auxiliary Power Outlet................... 148
Battery............................... 324
Emergency Starting..................... 303
Keyless Transmitter Replacement............ 21
Saving Feature (Protection)............... 112
Belts, Drive............................ 320
Belts, Seat.............................. 28
Body Mechanism Lubrication............... 327
B-Pillar Location........................ 259
Brake System........................... 334
Anti-Lock........................... 246
Hoses.............................. 335
Master Cylinder....................... 335
Parking............................. 244
Trailer Towing........................ 284
Warning Light........................ 164
Brake/Transmission Interlock............... 234Break-In Recommendations, New Vehicle........ 63
Bulb Replacement.....................350,351
Calibration, Compass..................... 182
Capacities, Fluid........................ 357
Caps, Filler
Fuel................................ 281
Radiator (Coolant Pressure)............... 331
Car Washes............................ 341
Carbon Monoxide Warning............64,140,280
Cargo Area Cover....................... 151
Cargo Area Features...................... 150
Cargo Compartment...................... 150
Light............................... 150
Luggage Carrier....................... 157
Cargo Light............................ 150
Cargo Load Floor........................ 154
Cargo Tie-Downs........................ 153
Carpeting............................. 343
INDEX 393
10

Catalytic Converter...................... 321
Caution, Exhaust Gas..................... 140
CD Player..........................186,200
Cellular Phone.......................... 76
Center High Mounted Stop Light............ 356
Chains, Tire............................ 275
Changing A Flat Tire..................... 298
Chart, Tire Sizing........................ 256
Checks, Safety........................... 65
Child Restraint....................53,54,59,61
Child Restraint Tether Anchors.............58,59
Child Safety Locks........................ 16
Climate Control......................... 213
Clock................................ 188
Compact Disc Maintenance................. 212
Compass...........................178,182
Compass Calibration..................... 182
Compass Variance....................... 183
Computer, Trip/Travel.................... 178Console, Overhead....................... 137
Contract, Service........................ 386
Converter, Catalytic...................... 321
Cooling System......................... 329
Adding Coolant (Antifreeze).............. 331
Coolant Capacity...................... 357
Coolant Level......................... 332
Disposal of Used Coolant................ 332
Drain, Flush, and Refill.................. 330
Inspection........................... 329
Points to Remember.................... 333
Pressure Cap......................... 331
Radiator Cap......................... 331
Selection of Coolant..................330,357
Crankcase Emission Control System.......... 323
Cruise Control (Speed Control).............. 134
Cruise Light........................... 169
Cup Holder............................ 149
Customer Assistance..................... 384
394 INDEX