engine JEEP LIBERTY 2005 Service Manual

Do not use alcohol or gasoline as a fuel blending
agent. They can be unstable under certain conditions
and hazardous or explosive when mixed with diesel
fuel.
To avoid fuel spillage and overfilling, do not “top
off” the fuel tank after filling.
CAUTION!
DO NOT put gasoline in your diesel vehicle (if
equipped). If you accidentally put gasoline in your
vehicle, DO NOT start the engine. This will cause
damage to the fuel system. Have the fuel system
flushed.

Transmission damage may occur if the automatic
transmission is shifted into P (Park) with the transfer
case in N (Neutral) and the engine running. With the
transfer case in N (Neutral) ensure that the engine is
OFF prior to shifting the transmission into P (Park)
(refer to steps7 – 8 above).
Shifting Out Of Neutral (N)
Use the following procedure to prepare your vehicle for
normal usage.
1. Shift transmission into N (Neutral).
2. Turn engine off.
3. Shift transfer case lever to desired position.
4. Shift automatic transmission into P (Park).
288 STARTING AND OPERATING

Driving with a hot cooling system could damage
your vehicle. If the temperature gauge reads “H”,
pull over and stop the vehicle. Idle the vehicle with
the air conditioner turned off until the pointer drops
back into the normal range. If the pointer remains on
the “H”, and you hear continuous chimes, turn the
engine off immediately, and call for service.

In cold weather, always turn off the wiper switch
and allow the wipers to return to the park position
before turning off the engine. If the wiper switch is
left on and the wipers freeze to the windshield,
damage to the wiper motor may occur when the
vehicle is restarted.

On vehicles equipped with a limited-slip differen-
tial, never run the engine with one rear wheel off the
ground. The vehicle may drive through the rear
wheel remaining on the ground and cause you to
lose control of your vehicle.

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.
Brake and Power Steering System Hoses
When servicing the vehicle for scheduled maintenance,
inspect surface of hoses for evidence of heat and me-
chanical damage. Hard and brittle rubber, cracking, tears,
cuts, abrasion, and excessive swelling suggest deteriora-
tion of the rubber. Particular attention should be made to
examining those hose surfaces nearest to high heat
sources, such as the exhaust manifold.Inspect all hose clamps and couplings to make sure they
are secure and no leaks are present.
NOTE:Often fluids such as oil, power steering fluid,
and brake fluid are used during assembly plant opera-
tions to ease the assembly of hoses to couplings. There-
fore, oil wetness at the hose-coupling area is not neces-
sarily an indication of leakage. Actual dripping of hot
fluid when systems are under pressure (during vehicle
operation) should be noted before hose is replaced based
on leakage.
NOTE:Inspection of brake hoses should be done when-
ever the brake system is serviced and every engine oil
change.
MAINTAINING YOUR VEHICLE 331

Use of a brake fluid that may have a lower initial
boiling point or unidentified as to specification, may
result in sudden brake failure during hard pro-
longed braking. You could have an accident.
WARNING!
Overfilling the brake fluid reservoir can result in
spilling brake fluid on hot engine parts and the
brake fluid catching fire.

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 the
manufacturer’s recommended fluid will result in
more frequent fluid and filter changes. Refer to
Recommended Fluids, Lubricants, and Genuine
Parts for correct fluid type.
Fluid Level Check – 3.7L Gasoline Engine (42RLE)
and 2.8L Diesel Engine (545RFE)
This fluid level should be checked when the engine is
fully warmed up and the fluid in the transmission is
heated to its normal operating temperature. Operation of
the transmission with an improper fluid level will greatly
reduce the life of the transmission and of the fluid.To check the automatic transmission fluid level properly,
the following procedure must be used:
1. The vehicle must be on level ground.
2. The engine should be running at curb idle speed for a
minimum of 60 seconds.
3. Fully apply parking brake.
4. Apply the brakes and shift the transmission into P
(Park).
5. The fluidMUSTbe checked with the transmission in
P (Park) to be sure that the fluid level is accurate.
6. Wipe the dipstick clean and reinsert until seated.
Remove dipstick and note reading.
At normal operating temperature (approximately 180° F
(82° C), the fluid level is correct if it is in the HOT region
334 MAINTAINING YOUR VEHICLE

Cavity Fuse Description
11 15 Amp Blue Flasher
12 15 Amp Blue Stop Lights
13 10 Amp Red Body Control Module/
CMTC/Cluster/Pass. Airbag
On,Off Indicator, Auto Day-
light Mirror/Light Bar
Switch (Renegade Only)
14 10 Amp Red PDC Fuel Pump/AC Clutch,
Starter Relay/Engine
Controller/Transmission
Controller (Diesel Only)
15 Spare
16 20 Amp Yel-
lowPower Outlet (Rear)
17 15 Amp Blue Rear Wiper
18 20 Amp Yel-
lowRadio Choke & Relay
MAINTAINING YOUR VEHICLE 343

Cavity Fuse Description
R37 Half ISO Re-
layNGC Trans
R38 Open
R39 Full ISO Re-
layASD
R40 Full ISO Re-
layRad. Fan Lo
Power Distribution Center (Diesel Engines)