2004 JEEP WRANGLER transmission fluid

²Do not downshift into a low gear while traveling at too
high a speed for that gear. Engine, clutch, or transmis-
sion damage may result.
²Do not rest your foot on the clutch pedal. This causes
heat buildup and damages the clutch.
²When you slow down or go up a grade, downshift as
speed requires or the engine may overheat.
²Never hold the vehicle stopped on a hill by using the
clutch pedal. The clutch may be damaged.
²During cold weather, you may experience increased
effort in shifting until the transmission fluid warms
up. This is normal.
²Push in the clutch pedal completely when shifting.
Otherwise, transmission or clutch damage may result.
²When ªrockingº a stuck vehicle by shifting between a
forward gear and reverse, do not spin wheels faster
than 15 mph (24 km/h), or drivetrain damage may
result.
²The manual transmission may be equipped with a
ªReverse Blockerº to prevent inadvertent shifts from
5th gear to Reverse. If you experience difficulty shift-
ing into ªReverseº, make sure that you are not inad-
vertently moving the shift lever toward 5th gear when
shifting into ªReverse.º
Recommended Manual Transmission Shifting
Speeds
The ªShift Indicator Lightº in the instrument cluster
reminds you when to shift to the next higher gear (4.0L
Only). The manufacturer recommends that you use the
SIL for normal driving. The desired shift speeds are listed
in the chart below.
Manual Transmission Shift Speeds in MPH (KM/H)
Engine Speeds 1 to 2 2 to 3 3 to 4 4 to 5
2.4L Accel. 15 (24) 25 (40) 40 (64) 45 (72)
Cruise 15 (24) 25 (40) 40 (64) 45 (72)
4.0L Accel. 14 (23) 23 (37) 36 (58) 44 (71)
Cruise 14 (23) 20 (32) 28 (45) 38 (61)
164 STARTING AND OPERATING

²The weight of any other type of cargo or equipment
put in or on your vehicle.
Remember that everything put in or on the trailer adds to
the load on your vehicle.
Warranty Requirements
The manufacturer's warranty will apply to vehicles used
to tow trailers for noncommercial use, however the
following conditions must be met:
²The ªDº Overdrive range can be selected when tow-
ing. However, if frequent shifting occurs move the
shift lever to the next lower position to eliminate
excessive automatic transmission shifting. This action
will also reduce the possibility of transmission over-
heating and provide better engine braking. Refer to
ªTransmission Shiftingº in this section for additional
information.
²A load equalizing hitch is recommended for loaded
trailer weights above 1,000 lbs (454 kg).
CAUTION!
If the trailer weighs more than 1,000 lbs (454 kg)
loaded, it should have its own brakes and they
should be of adequate capacity. Failure to do this
could lead to accelerated brake lining wear, higher
brake pedal effort, and longer stopping distances.
WARNING!
Connecting trailer brakes to your vehicle's hydraulic
brake lines can overload your brake system and
cause it to fail. You might not have brakes when you
need them and could have an accident.
²Whenever you pull a trailer, regardless of the trailer
size, stop lights and turn signals on the trailer are
mandatory for motoring safety.
²Follow the maintenance intervals in schedule ªBº for
changing the automatic transmission fluid and filter, if
you REGULARLY tow a trailer for more than 45
minutes of continuous operation.
STARTING AND OPERATING 203
5

NOTE:Refer to ªRecommended Fluids, Lubricants,
and Genuine Partsº in Section 7 for axle differential
lubrication specifications for towing.
SNOW PLOW
Snow plowsshould notbe added to the front end of your
vehicle.
RECREATIONAL TOWING (BEHIND
MOTORHOME, ETC.)
CAUTION!
Internal damage to the transfer case will occur if a
front or rear wheel lift is used when recreational
towing.
NOTE:The transfer case must be shifted into N (Neu-
tral) for recreational towing.
Shifting Into Neutral (N)
Use the following procedure to prepare your vehicle for
recreational towing.
CAUTION!
It is necessary to follow these steps to be certain that
the transfer case is fully in N (Neutral) before
recreational towing to prevent damage to internal
parts.
1. Depress brake pedal.
2. Shift automatic transmission into N (Neutral) or de-
press clutch pedal on manual transmission.
3. Shift transfer case lever into N (Neutral).
4. Start engine.
5. Shift automatic transmission into D (Drive) or manual
transmission into gear.
STARTING AND OPERATING 205
5

NWindshield Washers...................238
NExhaust System......................238
NCooling System.......................239
NHoses And Vacuum/Vapor Harnesses.......242
NBrake System........................243
NAutomatic Transmission................245
NHydraulic Clutch Fluid Ð
Manual Transmission..................246
NManual Transmission..................246
NTransfer Case........................247
NFront/Rear Axle Fluid..................248
NAppearance Care And Protection
From Corrosion......................248mFuse Panel...........................254
NInterior Fuses........................254
NUnderhood Fuses
(Power Distribution Center)..............256
mVehicle Storage........................256
mReplacement Bulbs Ð If Equipped.........257
mFluid Capacities.......................258
mRecommended Fluids, Lubricants And
Genuine Parts
.........................259
NEngine.............................259
NChassis............................260
222 MAINTAINING YOUR VEHICLE

Use only brake fluid that has been in a tightly closed
container to avoid contamination from foreign matter. Do
not allow petroleum base fluid to contaminate the brake
fluid as seal damage will result.
Automatic Transmission
Selection of Lubricant
It is important that the proper lubricant is used in the
transmission to assure optimum transmission perfor-
mance. Use only manufacturer's recommended transmis-
sion fluid, refer to Recommended Fluids, Lubricants, and
Genuine Parts for correct fluid type. It is important that
the transmission fluid be maintained at the prescribed
level using the recommended fluid.
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 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 Ð 42RLE
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.
MAINTAINING YOUR VEHICLE 245
7

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 180É F
(82É C), the fluid level is correct if it is in the HOT region
(cross-hatched area) on the oil level indicator. The fluid
level indicator should be in the COLD region at 70É F (21É
C) fluid temperature.
If the fluid level is low, add sufficient fluid to bring to the
proper level. Refer to Recommended Fluids, Lubricants
and Genuine Parts for correct fluid type.
Fluid is added through the dipstick tube.NOTE:To prevent dirt and water from entering the
transmission after checking or replenishing fluid, make
certain that the dipstick cap is properly reseated.
Special Additives
The manufacturer strongly recommends against the ad-
dition of any additives to the transmission. The only
exception to this policy is the use of special dyes to aid in
detecting fluid leaks. The use of transmission sealers
should be avoided as they may adversely affect seals.
Hydraulic Clutch Fluid Ð Manual Transmission
The clutch hydraulic system is a sealed maintenance free
system. In the event of leakage or other malfunction, the
system must be replaced.
Manual Transmission
Selection of Lubricant
Use only manufacturer's recommended manual trans-
mission fluid, refer to Recommended Fluids, Lubricants,
and Genuine Parts for correct fluid type.
246 MAINTAINING YOUR VEHICLE

Chassis
Component Fluid, Lubricant, or Genuine Part
Automatic Transmission MopartATF+4 Automatic Transmission Fluid.
Manual Transmission MopartManual Transmission Lubricant or equivalent.
Transfer Case MopartATF+4 Automatic Transmission Fluid.
Axle Differential (front-rear) MopartHypoid Gear Lubricant (SAE 80W-90) (API GL5) or equivalent. For
trailer towing, use a SAE 75W-140 Synthetic Gear Lubricant. Models
equipped with Trac-Lok require an additive.
Brake Master Cylinder MopartDOT 3, SAE J1703 should be used. If DOT 3, SAE J1703 brake fluid
is not available, then DOT 4 is acceptable. Use only recommended brake flu-
ids.
Power Steering Reservoir MopartATF+4 Automatic Transmission Fluid.
Steering Gear & Linkage, Ball
Joints, Prop Shafts & Yokes, Wheel
BearingsMopartMulti-Purpose Lubricant NLGI Grade 2 EP, GC-LB
260 MAINTAINING YOUR VEHICLE

NOTE:Most vehicles are operated under the conditions
listed for Schedule ªB.º
Second is ScheduleªAº. It is for vehicles that are not
operated under any of the conditions listed under Sched-
ule ªB.º
Use the schedule that best describes your driving condi-
tions. Where time and mileage are listed, follow the
interval that occurs first.
CAUTION!
Failure to perform the required maintenance items
may result in damage to the vehicle.
At Each Stop for Fuel
²
Check the engine oil level about 5 minutes after a fully
warmed engine is shut off. Checking the oil level while
the vehicle is on level ground will improve the accu-
racy of the oil level reading. Add oil only when the
level is at or below the ADD or MIN mark.
²Check the windshield washer solvent, add as required.
Once a Month
²
Check the tire pressure and look for unusual wear or
damage.
²Inspect the battery and clean and tighten the terminals
as required.
²Check the fluid levels of the coolant reservoir, brake
master cylinder, and transmission, and add as needed.
²Check all lights and all other electrical items for correct
operation.
At Each Oil Change
²
Change the engine oil filter.
²Inspect the exhaust system.
²Inspect brake hoses.
²Check the coolant level, hoses, and clamps.
²Inspect manual transmission fluid level Ð if
equipped.
MAINTENANCE SCHEDULES 263
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