cooling JEEP COMMANDER 2006 1.G User Guide

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 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.
366 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 MoparAntifreeze/ 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 367
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.
368 MAINTAINING YOUR VEHICLE

When additional antifreeze/coolant is needed to main-
tain the proper level, it should be added to the coolant
bottle. Do not overfill.
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 antifreeze/
coolant 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 recovery bottle.
•Check antifreeze/coolant freeze point in the radiator
and in the coolant recovery bottle. If antifreeze/coolant needs to be added, contents of coolant recov-
ery bottle must also be protected against freezing.
•If frequent antifreeze/coolant additions are required,
or if the level in the coolant recovery bottle does not
drop when the engine cools, the cooling system should
be pressure tested for leaks.
•Maintain antifreeze/coolant concentration at 50%
HOAT antifreeze/coolant (minimum) and distilled
water for proper corrosion protection of your engine
which contains aluminum components.
•Make sure that the radiator and coolant recovery
bottle 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, also.
•Do not change the thermostat for summer or winter
operation. If replacement is ever necessary, install
MAINTAINING YOUR VEHICLE 369
7

ONLY the correct type thermostat. Other designs may
result in unsatisfactory cooling performance, poor gas
mileage, and increased emissions.
Hoses and Vacuum/Vapor Harnesses
Inspect surfaces of hoses and nylon tubing for evidence
of heat and mechanical damage. Hard or soft spots,
brittle rubber, cracking, tears, cuts, abrasions, and exces-
sive swelling indicate deterioration of the rubber.
Pay particular attention to the hoses nearest to high heat
sources such as the exhaust manifold. Inspect hose rout-
ing to be sure hoses do not touch any heat source or
moving component that may cause heat damage or
mechanical wear.
Insure nylon tubing in these areas has not melted or
collapsed. Inspect all hose connections such as clamps
and couplings to make sure they are secure and no leaksare present. Components should be replaced immedi-
ately if there is any evidence of degradation that could
cause failure.
Brake System
In order to assure brake system performance, all brake
system components should be inspected periodically.
Refer to the appropriate “Maintenance Schedule” in
Section 8 for suggested service intervals.
WARNING!
Riding the brakes can lead to brake failure and
possibly an accident. Driving with your foot resting
or riding on the brake pedal can result in abnormally
high brake temperatures, excessive lining wear, and
possible brake damage. You wouldn’t have your full
braking capacity in an emergency.
370 MAINTAINING YOUR VEHICLE

FLUID CAPACITIES
U.S. Metric
Fuel (Approximate)20.6 Gallons 78 Liters
Engine Oil with Filter
3.7 Liter Engine (5W-30, API Certified) 5 Qts 4.7 Liters
4.7 Liter Engine (5W-30, API Certified) 6 Qts 5.7 Liters
5.7 Liter Engine (5W-20, API Certified) 7 Qts 6.6 Liters
Cooling System *
3.7 Liter Engine (MoparEngine Coolant/Antifreeze 5 Year/
100,000 Mile Formula)9 Qts 10 Liters
4.7 Liter Engine (MoparEngine Coolant/Antifreeze 5 Year/
100,000 Mile Formula)14.5 Qts 13.7 Liters
5.7 Liter Engine (MoparEngine Coolant/Antifreeze 5 Year/
100,000 Mile Formula)14.5 Qts 13.7 Liters
* Includes heater and coolant recovery bottle filled to MAX level.
388 MAINTAINING YOUR VEHICLE

Chains, Tire............................ 303
Changing A Flat Tire..................... 332
Chart, Tire Sizing........................ 282
Checks, Safety......................... 70,71
Child Restraint.................... 58,59,64,66
Child Restraint Tether Anchors............. 63,64
Child Safety Locks........................ 19
Climate Control......................... 232
Clock ...........................202,216,223
Command View Skylights.................. 161
Compact Disc (CD) Maintenance............. 231
Compass.............................. 193
Compass Variance....................... 198
Computer, Trip/Travel.................... 193
Console, Overhead....................... 152
Contract, Service........................ 414
Converter, Catalytic...................... 356
Cooling System......................... 365
Adding Coolant (Antifreeze).............. 367Coolant Capacity...................... 388
Coolant Level......................... 368
Disposal of Used Coolant................ 368
Drain, Flush, and Refill.................. 366
Inspection........................... 365
Points to Remember.................... 369
Pressure Cap......................... 367
Radiator Cap......................... 367
Selection of Coolant (Antifreeze).........366,388
Courtesy Lights......................... 121
Crankcase Emission Control System.......... 358
Cruise Control (Speed Control).............. 148
CruiseLight ........................... 184
CupHolder ............................ 164
Customer Assistance..................... 412
Data Recorder, Event...................... 56
Daytime Running Lights................... 125
Dealer Service.......................... 351
422 INDEX

Block Heater......................... 255
Break-In Recommendations................ 68
Compartment......................... 346
Cooling ............................. 365
Exhaust Gas Caution.................. 69,308
Fails to Start.......................... 254
Flooded, Starting...................... 254
Fuel Requirements..................305,388
Jump Starting......................... 338
Oil ..............................352,388
Oil Change Interval.................... 352
Oil Disposal.......................... 355
OilFilter ............................ 355
Oil Filter Disposal...................... 355
Oil Selection.......................... 388
Overheating.......................... 331
Starting............................. 253
Temperature Gauge..................... 182
Engine Oil Viscosity...................... 354Engine Oil Viscosity Chart................. 354
Enhanced Accident Response Feature.......... 55
Entry System, Illuminated.................. 18
Event Data Recorder...................... 56
Exhaust Gas Caution................... 69,308
Exhaust System......................... 364
Extender, Seat Belt........................ 41
ExteriorFinishCare ...................... 377
Filters
Air Cleaner.......................... 358
Engine Oil........................... 355
FinishCare ............................ 377
Flashers.............................. 330
Hazard Warning....................... 330
Turn Signal.......................... 178
Flipper Glass, Liftgate..................... 28
Flooded Engine Starting................... 254
Fluid Capacities......................... 388
424 INDEX

Inflation Pressures..................... 290
Jacking............................. 332
LifeofTires .......................... 294
Load Capacity.....................285,286
Pressure Monitor System (TPMS)........... 297
Pressure Warning Light.................. 181
Quality Grading....................... 417
Radial.............................. 293
Replacement......................... 295
Rotation............................. 304
Safety............................ 71,281
Sizes ............................... 282
Spare Tire........................... 333
Spinning ............................ 293
Tread Wear Indicators................... 294
Wheel Mounting....................... 337
Tongue Weight/Trailer Weight.............. 316
Torque Converter Clutch.................. 262
Tow Hooks, Emergency................... 340Tow/Haul Indicator Light................. 183
Towing ............................312,341
Disabled Vehicle....................... 341
Guide .............................. 315
Recreational.......................... 323
Weight .............................. 315
Traction Control......................... 133
Traction Control Light.................... 180
TrailerTowing .......................... 312
Cooling System Tips.................... 322
Hitches............................. 314
Minimum Requirements................. 317
Trailer and Tongue Weight................ 316
Wiring .............................. 320
TrailerTowingGuide ..................... 315
TrailerWeight .......................... 315
Transfer Case........................... 375
Maintenance.......................... 375
INDEX 435
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