2008 JEEP LIBERTY engine

The cap should be inspected and cleaned if there is any
accumulation of foreign material on the sealing surfaces.
WARNING!
²The warning words ªDO NOT OPEN HOTº on
the cooling system pressure cap are a safety pre-
caution. Never add 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 scald-
ing or injury, do not remove the pressure cap while
the system is hot or under pressure.
²Do not use a pressure cap other than the one
specified for your vehicle. Personal injury or en-
gine damage may result.
Disposal of Used Coolant
Used ethylene glycol based engine coolant is a regulated
substance requiring proper disposal. Check with your
local authorities to determine the disposal rules for your
community. To prevent ingestion by animals or children,
do not store ethylene glycol based engine 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 immediately.
Coolant Level
The coolant bottle provides a quick visual method for
determining that the coolant level is adequate. With the
engine idling, and warm to normal operating tempera-
ture, the level of the coolant in the bottle should be
between the ranges indicated on the bottle.
The radiator normally remains completely full, so there is
no need to remove the radiator cap unless checking for
coolant freeze point or replacing coolant. Advise your
MAINTAINING YOUR VEHICLE 419
7

service attendant of this. As long as the engine operating
temperature is satisfactory, the coolant bottle need only
be checked once a month.
When additional coolant is needed to maintain 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 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.
²Do not overfill the coolant bottle.
²Check coolant freeze point in the radiator and in the
coolant recovery bottle. If coolant needs to be added,
contents of coolant recovery bottle must also be pro-
tected against freezing.
²If frequent 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 pres-
sure tested for leaks.
²Maintain coolant concentration at 50% HOAT engine
coolant (minimum) and distilled water for proper
corrosion protection of your engine, which contains
aluminum components.
²Make sure that the radiator and coolant recovery
bottle hoses are not kinked or obstructed.
420 MAINTAINING YOUR VEHICLE

²Inspect the brake hoses whenever the brake system is
serviced and at every engine oil change. Inspect hy-
draulic brake hoses for surface cracking, scuffing, or
worn spots. If there is any evidence of cracking,
scuffing, or worn spots, the hose should be replaced
immediately! Eventual deterioration of the hose can
take place resulting in a possibility of a burst failure.
WARNING!
Worn brake hoses can burst and cause brake failure.
You could have an accident. If you see any signs of
cracking, scuffing, or worn spots, have the brake
hoses replaced immediately.
Master Cylinder - Brake Fluid Level Check
Check the fluid level in the master cylinder immediately
if the brake system warning light indicates system fail-
ure.Check the fluid level in the master cylinder when per-
forming underhood services.
Clean the top of the master cylinder area before removing
the cap. If necessary, add fluid to bring the fluid level up
to the requirements described on the brake fluid reser-
voir.
Overfilling of fluid is not recommended because it may
cause leaking in the system.
Fluid level can be expected to fall as the brake pads wear.
Brake fluid level should be checked when pads are
replaced. However, low fluid level may be caused by a
leak and a checkup may be needed.
Use only manufacturer's recommended brake fluid. Re-
fer to ªFluids, Lubricants, and Genuine Partsº in this
section for the correct fluid type.
MAINTAINING YOUR VEHICLE 423
7

WARNING!
²Overfilling the brake fluid reservoir can result in
spilling brake fluid on hot engine parts and the
brake fluid catching fire.
²Use of a brake fluid that has a lower initial boiling
point than the recommended product or a brake
fluid that is unidentified as to FMVSS specifica-
tion may result in sudden brake failure during
hard prolonged braking. You could have an
accident.
Use only brake fluid that has been in a tightly closed
container to avoid contamination from foreign matter or
moisture.
CAUTION!
Do not allow petroleum-base fluid to contaminate
the brake fluid. Seal damage may result.
Clutch Hydraulic System Ð Manual Transmission
(If Equipped)
The clutch hydraulic system is fed by a segregated
volume of fluid within the brake system master cylinder
reservoir. In the event of leakage or wear, use only
manufacturer's recommended brake fluid. Refer to ªFlu-
ids, Lubricants, and Genuine Partsº in this section for the
correct fluid type.
424 MAINTAINING YOUR VEHICLE

Automatic Transmission
Fluid Level Check
Your vehicle is equipped with a capped dipstick tube that
is sealed and it should not be tampered with. Your
authorized dealer has the proper tools to ensure that the
fluid level is set properly.
CAUTION!
Using a transmission fluid other than the manufac-
turer's recommended fluid may cause deterioration
in transmission shift quality and/or torque converter
shudder. Using a transmission fluid other than that
recommended by the manufacturer will result in
more frequent fluid and filter changes. Refer to
ªFluids, Lubricants, and Genuine Partsº in this sec-
tion for the correct fluid type.
Fluid and Filter Changes
Change the automatic transmission fluid and filter at the
intervals shown in the ªMaintenance Scheduleº in Sec-
tion 8 of this manual.
In addition, change the fluid and filter if the transmission
is disassembled for any reason.
NOTE:Be sure to follow the ªpolice, taxi, fleet, off-road,
or frequent trailer towingº maintenance interval if appli-
cable.
Special Additives
Automatic Transmission Fluid (ATF) is an engineered
product and its performance may be impaired by supple-
mental additives. Therefore, do not add any fluid addi-
tives to the transmission. The only exception to this
policy is the use of special dyes to aid in detecting fluid
leaks. In addition, avoid using transmission sealers as
they may adversely affect seals.
MAINTAINING YOUR VEHICLE 425
7

CAUTION!
Avoid getting Scotchguardton the surrounding
weather strips, moldings, paint, or glass. Damage to
these items might occur.
Weather Strip Care
Lubricate the weather strips periodically with Mopar
Weather Strip Lubricant (part number 4773427), to keep
them soft and pliable.
FUSES (INTEGRATED POWER MODULE)
The Totally Integrated Power Module (TIPM) is located
in the engine compartment near the battery. This center
contains cartridge fuses, mini fuses and relays. A label
that identifies each component is printed on the inside of
the cover.Cavity Cartridge
FuseMini
FuseDescription
J1ÐÐÐ
J2 30 Amp
PinkÐ Transfer Case Module
- if equipped
Integrated Power Module (TIPM)
436 MAINTAINING YOUR VEHICLE

FLUID CAPACITIES
U.S. Metric
Fuel (approximate)
3.7 Liter Engine 19.5 Gallons 73.8 Liters
Engine Oil-With Filter
SAE 5W-20, API Certified 5 Qts 4.7 Liters
Cooling System *
MopartAntifreeze/Coolant 5 Year/100,000 Mile Formula or equivalent. 14 Qts 13 Liters
* Includes heater and coolant recovery bottle filled to MAX level.
MAINTAINING YOUR VEHICLE 447
7

FLUIDS, LUBRICANTS, AND GENUINE PARTS
Engine
Component Fluids, Lubricants, and Genuine Parts
Engine Coolant MopartAntifreeze/Coolant 5 Year/100,000 Mile Formula HOAT (Hybrid Or-
ganic Additive Technology) or equivalent.
Engine Oil Use API Certified SAE 5W-20 Engine Oil meeting the requirements of
DaimlerChrysler Material Standard MS-6395. Refer to the engine oil fill cap
for correct SAE grade.
Spark Plugs ZFR6F-11 (Gap.043 in [1.1 mm])
Oil Filter Mopart5281090 or equivalent.
Fuel Selection 87 Octane
448 MAINTAINING YOUR VEHICLE