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Jeep Wrangler 4xe (2023 year). Manual in english - page 20

SERVICING AND MAINTENANCE

313

DDITIONAL

AINTENANCE

— B6 T

B20 B

IODIESEL

NOTE:



Under no circumstances should oil change intervals exceed 8,000 miles (12,875 km) or six months, whichever comes first when using biodiesel blends greater than 5% (B5).



The owner is required to monitor mileage for B6-B20 biodiesel, the automatic oil change indicator system does not reflect the use of biofuels.



Fuel filter change interval is maintained at every second oil change. This is especially important with biodiesel usage.

For more information on using biodiesel

page 371.

Flush and replace the engine coolant at 10 years or 150,000 miles

(240,000 km) whichever comes first.

Replace accessory drive belt(s).

Change transfer case fluid.

Mileage Or Time Passed (Whichever Comes First)

10,000

20,000

30,000

40,000

50,000

60,000

70,000

80,000

90,000

100,000

110,000

120,000

130,000

140,000

150,000

Or Years:

10 11 12 13 14 15

Or Kilometers:

16,000

32,000

48,000

64,000

80,000

96,000

112,000

128,000

144,000

160,000

176,000

192,000

208,000

224,000

240,000

WARNING!



You can be badly injured working on or around a motor vehicle. Do only service work for which you have the knowledge and the right equipment. If you have any doubt about your

ability to perform a service job, take your vehicle to a competent mechanic.



Failure to properly inspect and maintain your vehicle could result in a component malfunction and affect vehicle handling and performance. This could cause an accident.

314

SERVICING AND MAINTENANCE

ENGINE COMPARTMENT

2.0L G

ASOLINE

NGINE

1 — Battery

6 — Brake Fluid Reservoir Cap

2 — Power Distribution Center (Fuses)

7 — Washer Fluid Reservoir Cap

3 — Engine Oil Dipstick

8 — Engine Air Cleaner Filter

4 — Engine Oil Fill

9 — Power Steering Reservoir Cap

5 — Engine Coolant Pressure Cap

10 — Intercooler Coolant Reservoir Cap

SERVICING AND MAINTENANCE

315

3.6L G

ASOLINE

NGINE

1 — Power Distribution Center (Fuses)

7 — Power Pack Unit Pressure Cap — If Equipped

2 — Battery

8 — Washer Fluid Reservoir Cap

3 — Engine Oil Dipstick

9 — Engine Air Cleaner Filter

4 — Engine Oil Fill

10 — Power Steering Reservoir Cap

5 — Engine Coolant Pressure Cap

11 — Motor Generator Unit Coolant Pressure Cap— If Equipped

6 — Brake Fluid Reservoir Cap

316

SERVICING AND MAINTENANCE

3.0L D

IESEL

NGINE

1 — Battery

6 — Power Distribution Center (Fuses)

2 — Engine Oil Fill

7 — Power Steering Reservoir Cap

3 — Engine Coolant Pressure Reservoir Cap

8 — Engine Oil Dipstick

4 — Brake Fluid Reservoir Cap

9 — Engine Air Cleaner Filter

5 — Washer Fluid Reservoir Cap

SERVICING AND MAINTENANCE

317

HECKING

EVEL

To ensure proper engine lubrication, the engine oil must

be maintained at the correct level. Check the oil level at

regular intervals, such as every fuel stop. The best time to

check the engine oil level is about five minutes after a fully

warmed up engine is shut off.
Checking the oil while the vehicle is on level ground will

improve the accuracy of the oil level readings.
There are four possible dipstick types:



Crosshatched zone.



Crosshatched zone marked SAFE.



Crosshatched zone marked with MIN at the low end of

the range and MAX at the high end of the range.



Crosshatched zone marked with dimples at the MIN

and the MAX ends of the range.

NOTE:

Always maintain the oil level within the crosshatch

markings on the dipstick.

NOTE:

Use care when filling under hood fluids such as engine oil,

washer fluid, antifreeze, etc., to minimize spillage onto the

top of the engine. Any excess fluid that is spilled onto the

top of the engine should be removed using compressed

air or an absorbent cloth.
Adding 1 qt (1 L) of oil when the reading is at the low end

of the dipstick range will raise the oil level to the high end

of the range marking.

DDING

ASHER

LUID

The fluid reservoir for the windshield washers and the rear

window washer (if equipped) is shared. The fluid reservoir

is located in the engine compartment. Be sure to check

the fluid level at regular intervals. Fill the reservoir with

windshield washer solvent only (not radiator antifreeze).

When refilling the washer fluid reservoir, take some

washer fluid and apply it to a cloth or towel and wipe clean

the wiper blades; this will help blade performance.
To prevent freeze-up of your windshield washer system in

cold weather, select a solution or mixture that meets or

exceeds the temperature range of your climate. This rating

information can be found on most washer fluid containers.

NOTE:

Use care when filling under hood fluids such as engine oil,

washer fluid, antifreeze, etc., to minimize spillage onto the

top of the engine. Any excess fluid that is spilled onto the

top of the engine should be removed using compressed

air or an absorbent cloth.

AINTENANCE

-F

REE

ATTERY

Your vehicle is equipped with a maintenance-free battery.

You will never have to add water, and periodic

maintenance is not required.

CAUTION!

Overfilling or underfilling the crankcase will cause

aeration or loss of oil pressure. This could damage your

engine.

WARNING!

Commercial windshield washer solvents are flammable.

They could ignite and burn you. Care must be exercised

when filling or working around the washer solution.

WARNING!



Battery fluid is a corrosive acid solution and can burn

or even blind you. Do not allow battery fluid to

contact your eyes, skin, or clothing. Do not lean over

a battery when attaching clamps. If acid splashes in

eyes or on skin, flush the area immediately with large

amounts of water

page 298.



Battery gas is flammable and explosive. Keep flame

or sparks away from the battery. Do not use a

booster battery or any other booster source with an

output greater than 12 Volts. Do not allow cable

clamps to touch each other.



Battery posts, terminals, and related accessories

contain lead and lead compounds. Wash hands after

handling.



Vehicles with the Stop/Start system will be equipped

with two batteries. Both the main and the supple

mental batteries must be disconnected to

completely de-energize the 12 Volt electrical system.



Serious injury or death could result if you do not

disconnect both batteries. To learn how to properly

disconnect, see an authorized dealer.

318

SERVICING AND MAINTENANCE

RESSURE

ASHING

Cleaning the engine compartment with a high pressure

washer is not recommended.

VEHICLE MAINTENANCE

An authorized dealer has the qualified service personnel,

special tools, and equipment to perform all service

operations in an expert manner. Service Manuals are

available which include detailed service information for

your vehicle. Refer to these Service Manuals before

attempting any procedure yourself.

NOTE:

Intentional tampering with emissions control systems may

void your warranty and could result in civil penalties being

assessed against you.

NGINE

Engine Oil Selection

For engine oil selection

page 374.

American Petroleum Institute (API)

Approved Engine Oil

These symbols mean that the oil has been certified by the

API. The manufacturer only recommends API trademark

oils.

The API Starburst trademark certifies 0W-20,

0W-30 and 5W-30 engine oils.

The API Donut trademark certifies 0W-40 and

5W-40 engine oil.

Synthetic Engine Oils

Your engine was designed for synthetic engine oils, only

use synthetic API approved engine oils.
Synthetic engine oils which do not have both the correct

API trademark and the correct SAE viscosity grade

numbers should not be used.

CAUTION!



It is essential when replacing the cables on the

battery that the positive cable is attached to the posi

tive post and the negative cable is attached to the

negative post. Battery posts are marked positive (+)

and negative (-) and are identified on the battery

case. Cable clamps should be tight on the terminal

posts and free of corrosion.



If a “fast charger” is used while the battery is in the

vehicle, disconnect both vehicle battery cables

before connecting the charger to the battery. Do not

use a “fast charger” to provide starting voltage.



Vehicles with the Stop/Start system will be equipped

with two batteries. Both the main and the supple

mental batteries must be disconnected to

completely de-energize the 12 Volt electrical system.



If the negative battery cables are not isolated prop

erly it can cause a potential power spike or surge in

the system, resulting in damage to essential elec

trical components.

CAUTION!

Precautions have been taken to safeguard all parts and

connections however, the pressures generated by these

machines is such that complete protection against

water ingress cannot be guaranteed.

WARNING!

You can be badly injured working on or around a motor

vehicle. Only do service work for which you have the

knowledge and the proper equipment. If you have any

doubt about your ability to perform a service job, take

your vehicle to a competent mechanic.

CAUTION!

Do not use chemical flushes in your engine oil as the

chemicals can damage your engine. Such damage is

not covered by the New Vehicle Limited Warranty.

SERVICING AND MAINTENANCE

319

Materials Added To Engine Oil

The manufacturer strongly recommends against the

addition of any additives (other than leak detection dyes)

to the engine oil. Engine oil is an engineered product and

its performance may be impaired by supplemental

additives.

Disposing Of Used Engine Oil And Oil

Filters

Care should be taken in disposing of used engine oil and

oil filters from your vehicle. Used oil and oil filters,

indiscriminately discarded, can present a problem to the

environment. Contact an authorized dealer, service

station or governmental agency for advice on how and

where used oil and oil filters can be safely discarded in

your area.

NGINE

ILTER

The engine oil filter should be replaced with a new filter at

every engine oil change.
Engine Oil Filter Selection
A full-flow type disposable oil filter should be used for

replacement. The quality of replacement filters varies

considerably. We recommend using a Mopar® Engine Oil

Filter. If a Mopar® Engine Oil Filter is unavailable only use

filters that meet or exceed SAE/USCAR-36 Filter

Performance Requirements.

NGINE

LEANER

ILTER

For the proper maintenance intervals

page 307 for

gasoline engines or

page 311 for diesel engines.

NOTE:

Be sure to follow the “Severe Duty Conditions” mainte

nance interval if applicable.

Engine Air Cleaner Filter Selection
The quality of replacement engine air cleaner filters varies

considerably. Only high quality Mopar® filters should be

used.

Engine Air Cleaner Filter Inspection and

Replacement— Gasoline Engine

Follow the recommended maintenance intervals as shown

in the Maintenance Schedule in this section.
Engine Air Cleaner Filter Removal
1. Loosen the fasteners from the engine air cleaner

filter cover using a suitable tool.

Engine Air Cleaner Filter Cover

2. Lift the engine air cleaner filter cover to access the

engine air cleaner filter.

WARNING!

The air induction system (air cleaner, hoses, etc.) can

provide a measure of protection in the case of engine

backfire. Do not remove the air induction system (air

cleaner, hoses, etc.) unless such removal is necessary

for repair or maintenance. Make sure that no one is

near the engine compartment before starting the

vehicle with the air induction system (air cleaner, hoses,

etc.) removed. Failure to do so can result in serious

personal injury.

1 — Fasteners
2 — Engine Air Cleaner Filter Cover

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SERVICING AND MAINTENANCE

3. Remove the engine air cleaner filter from the housing

assembly.

Engine Air Cleaner Filter Cover

Engine Air Cleaner Filter Installation

NOTE:

Inspect and clean the housing if significant dirt or debris is

present before replacing the engine air cleaner filter.
1. Install the engine air cleaner filter into the housing

assembly with the engine air cleaner filter

inspection surface facing downward.

2. Tighten engine air cleaner filter cover fasteners using

a suitable tool.

Engine Air Cleaner Filter Inspection and

Replacement — Diesel Engine

Follow the recommended maintenance intervals as shown

in the Maintenance Schedule in this section.
Engine Air Cleaner Filter Removal
1. Loosen the fasteners from the engine air cleaner

filter cover using a suitable tool.

Engine Air Cleaner Filter Cover

2. Lift the engine air cleaner filter cover to access the

engine air cleaner filter.

3. Remove the engine air cleaner filter from the housing

assembly.

Engine Air Cleaner Filter

Engine Air Cleaner Filter Installation

NOTE:

Inspect and clean the housing if significant dirt or debris is

present before replacing the engine air cleaner filter.
1. Install the engine air cleaner filter into the housing

assembly with the engine air cleaner filter

inspection surface facing downward.

2. Tighten engine air cleaner filter cover fasteners using

a suitable tool.

CAUTION!

Do not overtighten the engine air cleaner filter cover lid

screws or damage may result.

1 — Engine Air Cleaner Filter Cover
2 — Fasteners

1 — Engine Air Cleaner Filter Cover
2 — Engine Air Cleaner Filter

CAUTION!

Do not overtighten the engine air cleaner filter cover lid

screws or damage may result.

SERVICING AND MAINTENANCE

321

RAINING

UEL

ATER

EPARATOR

ILTER

— D

IESEL

NGINE

The fuel/water separator housing is located inside the left

frame rail in front of the fuel tank. The best access to this

water drain valve is from under the vehicle.

If necessary remove the fuel filter protective cover to

access the water drain valve.

Fuel/Water Separator Filter

If water is detected in the water separator while the engine

is running, or while the ignition switch is in the ON position,

the Water In Fuel Indicator Light will illuminate and an

audible chime will be heard. At this point you should stop

the engine and drain the water from the filter housing.

Fuel/Water Separator Filter

Within 10 minutes of vehicle shutdown, turn the filter

drain valve (located on the bottom of the filter housing)

counterclockwise to drain fuel/water; allow the

accumulated water to drain. Leave the drain valve open

until all water and contaminants have been removed.

When clear fuel is visible, close the drain valve by turning

it clockwise.
Upon proper draining of the water from fuel filter

assembly, the Water In Fuel Indicator Light will remain

illuminated for approximately 10 seconds. If the water was

drained while the engine was running, the Water In Fuel

Indicator Light may remain on for approximately three

minutes.

NOTE:

Care should be taken in disposing of used fluids from your

vehicle. Used fluids, indiscriminately discarded, can

present a problem to the environment. Contact an autho

rized dealer, service station, or government agency for

advice on recycling programs and for where used fluids

and filters can be properly disposed of in your area.
If more than two ounces or 60 ml of fuel have been

drained, follow the directions for Priming If The Engine Has

Run Out Of Fuel

page 323.

UEL

ILTER

EPLACEMENT

— D

IESEL

NGINE

NOTE:

Using a fuel filter that does not meet the manufacturer’s

filtration and water separating requirements can severely

impact fuel system life and reliability. We recommend you

use Mopar® Fuel Filter. Must meet 3 micron rating.

CAUTION!



Do not drain the fuel/water separator filter when the

engine is running.



Diesel fuel will damage blacktop paving surfaces.

Drain the filter into an appropriate container.

1 — Retainers
2 — Fuel Filter Protective Cover

1 — Water In Fuel Drain Valve

CAUTION!



Diesel fuel will damage blacktop paving surfaces.

Drain the filter into an appropriate container.



Do not prefill the fuel filter when installing a new fuel

filter. There is a possibility debris could be introduced

into the fuel filter during this action. It is best to

install the filter dry and allow the in-tank lift pump to

prime the fuel system.

322

SERVICING AND MAINTENANCE

1. Ensure engine is turned off.
2. Remove the fuel filter protective cover to access the

fuel filter assembly.

Fuel Filter Assembly

3. Place drain pan under the fuel filter assembly.
4. Open the water drain valve, and let any accumulated

water and fuel drain.

5. Close the water drain valve.

Fuel Filter Assembly

6. Wipe clean the underside of the filter housing to

prevent contamination from entering fuel system

during service.

7. Remove the fuel filter cap and filter from the housing

using a socket. Rotate counterclockwise for removal.

Fuel Filter Assembly

8. Remove the used fuel filter cartridge from the cap

and dispose of according to your local regulations.

9. Wipe clean the sealing surfaces of the cap and

housing.

1 — Retainers
2 — Fuel Filter Protective Cover

1 — Water Drain Valve

1 — Fuel Filter Cap
2 — Socket Adapter

CAUTION!

Take care when handling the new fuel filter to prevent

contamination from entering the fuel system.

SERVICING AND MAINTENANCE

323

10. Lubricate o-ring on the cap with clean engine oil.
11. Install the new fuel filter cartridge onto the cap.
12. Insert the cap and filter into the housing with

clockwise rotation, use a socket to tighten.

13. Push the ignition switch twice without your foot on the

brake to place vehicle in RUN position. This will

activate the in tank fuel pump for approximately 30

seconds. Repeat this process twice to prime the fuel

system. Start the engine using the Normal Starting

procedure. After engine start, verify the fuel filter cap

does not leak.

RIMING

NGINE

UEL

— D

IESEL

NGINE

1. Add a substantial amount of fuel to the tank, approx

imately 2 to 5 gal (8L to 19L).

2. Push ignition switch twice without your foot on brake

to put vehicle in RUN position. This will activate the in

tank fuel pump for approximately 30 seconds.

Repeat this process twice to prime the fuel system.

3. Start the engine using the Normal Starting procedure

page 130.

NOTE:

The engine may run rough until the air is forced from all

the fuel lines.

NOTE:



Use of biodiesel mixture in excess of 20% can nega

tively impact the fuel filter's ability to separate water

from the fuel, resulting in high pressure fuel system

corrosion or damage.



In addition, commercially available fuel additives are

not necessary for the proper operation of your diesel

engine.



For extreme cold conditions, "Mopar® Premium Diesel

Fuel Treatment" is recommended to assist with cold

starting.

NTERVENTION

EGENERATION

TRATEGY

— M

ESSAGE

ROCESS

LOW

This engine meets all required diesel engine emissions

standards. To achieve these emissions standards, your

vehicle is equipped with a state-of-the-art engine and

exhaust system. These systems are seamlessly integrated

into your vehicle and managed by the Powertrain Control

Module (PCM). The PCM manages engine combustion to

allow the exhaust system’s catalyst to trap and burn

Particulate Matter (PM) pollutants, with no input or

interaction on your part.
Additionally, your vehicle has the ability to alert you to

additional maintenance required on your vehicle or

engine.
Refer to Instrument Cluster Display for further information

page 108.

IESEL

XHAUST

LUID

Diesel Exhaust Fluid (DEF) sometimes known simply by

the name of its active component, UREA—is a key

component of Selective Catalytic Reduction (SCR)

systems, which help diesel vehicles meet stringent

emission regulations. DEF is a liquid reducing agent that

WARNING!

Do not open the high pressure fuel system with the

engine running. Engine operation causes high fuel

pressure. High pressure fuel spray can cause serious

injury or death.

CAUTION!

The starter motor will engage for approximately

30 seconds at a time. Allow two minutes between

cranking intervals.

WARNING!

Do not use alcohol or gasoline as a fuel blending agent.

They can be unstable under certain conditions and be

hazardous or explosive when mixed with diesel fuel.

CAUTION!

Due to lack of lubricants in alcohol or gasoline, the use

of these fuels can cause damage to the fuel system.

WARNING!

A hot exhaust system can start a fire if you park over

materials that can burn. Such materials might be grass

or leaves coming into contact with your exhaust system.

Do not park or operate your vehicle in areas where your

exhaust system can contact anything that can burn.

324

SERVICING AND MAINTENANCE

reacts with engine exhaust in the presence of a catalyst to

convert smog-forming Nitrogen Oxides (NOx) into

harmless nitrogen and water vapor.
For further information

page 374.

CCESSORY

RIVE

ELT

NSPECTION

When inspecting accessory drive belts, small cracks that

run across the ribbed surface of the belt, from rib to rib,

are considered normal. These are not a reason to replace

a belt. However, cracks running along a rib (not across) are

not normal. Any belt with cracks running along a rib must

be replaced. Also have the belt replaced if it has excessive

wear, frayed cords, or severe glazing.

Accessory Belt (Serpentine Belt)

Conditions that would require replacement:



Rib chunking (one or more ribs has separated from belt

body)



Rib or belt wear



Longitudinal belt cracking (cracks between two ribs)



Belt slips



Groove jumping (belt does not maintain correct posi

tion on pulley)



Belt broken



Noise (objectionable squeal, squeak, or rumble is

heard or felt while drive belt is in operation)

NOTE:

Identify and correct problem before new belt is installed.
Some conditions can be caused by a faulty component

such as a belt pulley. Belt pulleys should be carefully

inspected for damage and proper alignment.
Belt replacement on some models requires the use of

special tools, we recommend having your vehicle serviced

at an authorized dealer.

ONDITIONER

AINTENANCE

For best possible performance, your air conditioner should

be checked and serviced by an authorized dealer at the

start of each warm season. This service should include

cleaning of the condenser fins and a performance test.

Drive belt tension should also be checked at this time.

WARNING!



Do not attempt to inspect an accessory drive belt

with the vehicle running.



When working near the radiator cooling fan, discon

nect the fan motor lead. The fan is temperature

controlled and can start at any time regardless of

ignition mode. You could be injured by the moving

fan blades.



You can be badly injured working on or around a

motor vehicle. Only do service work for which you

have the knowledge and the proper equipment. If

you have any doubt about your ability to perform a

service job, take your vehicle to a competent

mechanic.

WARNING!



Use only refrigerants and compressor lubricants

approved by the manufacturer for your air condi

tioning system. Some unapproved refrigerants are

flammable and can explode, injuring you. Other

unapproved refrigerants or lubricants can cause the

system to fail, requiring costly repairs. Refer to

Warranty Information Book, located in your owner’s

information kit, for further warranty information.



The air conditioning system contains refrigerant

under high pressure. To avoid risk of personal injury

or damage to the system, adding refrigerant or any

repair requiring lines to be disconnected should be

done by an experienced technician.

CAUTION!

Do not use chemical flushes in your air conditioning

system as the chemicals can damage your air

conditioning components. Such damage is not covered

by the New Vehicle Limited Warranty.

SERVICING AND MAINTENANCE

325

Refrigerant Recovery And Recycling —

R–1234yf

R–1234yf Air Conditioning Refrigerant is a Hydrofluo

roolefin (HFO) that is endorsed by the Environmental

Protection Agency and is an ozone-friendly substance with

a low global-warming potential. The manufacturer

recommends that air conditioning service be performed by

an authorized dealer using recovery and recycling

equipment.

NOTE:

Use only the manufacturer approved A/C system PAG

compressor oil, and refrigerants.

Cabin Air Filter

The cabin air filter is located in the fresh air inlet behind

the glove compartment. Perform the following procedure

to replace the filter:
1. Open the glove compartment and remove all

contents.

2. Push up on the glove compartment travel stop and

lower the door.

Glove Compartment Travel Stop

3. Pivot the glove compartment downward.
4. Disengage the two retaining tabs that secure the air

filter access door to the HVAC housing.

Air Filter Retaining Tabs

5. Remove the air filter from the HVAC air inlet housing.

Pull the filter elements out pinching them to the right

for clearance.

Air Filter

6. Install the cabin air filter with the air filter position

indicators pointing in the same direction as removal.

7. Close cabin air filter access door and secure retaining

tabs.

WARNING!

Do not remove the cabin air filter while the vehicle is

running, or while the ignition is in the ACC or ON/RUN

mode. With the cabin air filter removed and the blower

operating, the blower can contact hands and may

propel dirt and debris into your eyes, resulting in

personal injury.

CAUTION!

The cabin air filter is identified with an arrow to indicate

airflow direction through the filter. Failure to properly

install the filter will result in the need to replace it more

often.

326

SERVICING AND MAINTENANCE

8. Rotate the glove compartment door back into

position ensuring you have properly engaged the

travel dampener.

Travel Dampener

For the proper maintenance intervals, see

page 307 for

gasoline engines or

page 311 for diesel engines.

ODY

UBRICATION

Locks and all body pivot points, including such items as

seat tracks, door hinge pivot points and rollers, liftgate,

tailgate, decklid, sliding doors and hood hinges, should be

lubricated periodically with a lithium based grease, such

as Mopar® Spray White Lube to ensure quiet, easy

operation and to protect against rust and wear. Prior to the

application of any lubricant, the parts concerned should

be wiped clean to remove dust and grit; after lubricating

excess oil and grease should be removed. Particular

attention should also be given to hood latching

components to ensure proper function. When performing

other underhood services, the hood latch release

mechanism, and safety catch should be cleaned and

lubricated.
The external lock cylinders should be lubricated twice a

year, preferably in the Fall and Spring. Apply a small

amount of a high quality lubricant, such as Mopar® Lock

Cylinder Lubricant directly into the lock cylinder.

INDSHIELD

IPER

LADES

Clean the rubber edges of the wiper blades and the

windshield periodically with a sponge or soft cloth and a

mild nonabrasive cleaner. This will remove accumulations

of salt or road film.
Operation of the wipers on dry glass for long periods may

cause deterioration of the wiper blades. Always use

washer fluid when using the wipers to remove salt or dirt

from a dry windshield.
Avoid using the wiper blades to remove frost or ice from

the windshield. Keep the blade rubber out of contact with

petroleum products such as engine oil, gasoline, etc.

NOTE:

Life expectancy of wiper blades varies depending on

geographical area and frequency of use. Poor perfor

mance of blades may be present with chattering, marks,

water lines or wet spots. If any of these conditions are

present, clean the wiper blades or replace as necessary.
The wiper blades and wiper arms should be inspected

periodically, not just when wiper performance problems

are experienced. This inspection should include the

following points:



Wear or uneven edges



Foreign material



Hardening or cracking



Deformation or fatigue

If a wiper blade or wiper arm is damaged, replace the

affected wiper arm or blade with a new unit. Do not

attempt to repair a wiper arm or blade that is damaged.

Wiper Blade Removal/Installation

1. Lift the wiper arm to raise the wiper blade off of the

glass, until the wiper arm is in the full up position.

Wiper Blade With Release Tab In Locked Position

1 — Travel Dampener Housing
2 — Travel Dampener Rod

CAUTION!

Do not allow the wiper arm to spring back against the

glass without the wiper blade in place or the glass may

be damaged.

1 — Wiper Blade
2 — Wiper Arm
3 — Release Tab

SERVICING AND MAINTENANCE

327

2. To disengage the wiper blade from the wiper arm,

push the release tab on the wiper blade and while

holding the wiper arm with one hand, slide the wiper

blade down towards the base of the wiper arm.

Wiper Blade With Release Tab In Unlocked Position

3. With the wiper blade disengaged, remove the wiper

blade from the wiper arm.

4. Gently lower the wiper arm onto the glass.

Installing The Front Wipers
1. Lift the wiper arm off of the glass, until the wiper arm

is in the full up position.

2. Position the wiper blade near the hook on the tip of

the wiper arm.

3. Slide the wiper blade up into the hook on the wiper

arm, latch engagement will be accompanied by an

audible click.

4. Gently lower the wiper blade onto the glass.

Rear Wiper Blade Removal/Installation

1. Open swing gate to access the wiper arm.

Rear Wiper Assembly

2. Lift wiper arm off of the glass and rotate wiper blade

outward to disengage the wiper blade from the wiper

arm.

Wiper Blade And Wiper Arm

3. Gently set the arm on the glass.

Wiper Blade Removed From Wiper Arm

1 — Wiper Blade
2 — Wiper Arm J Hook
3 — J Hook Retainer

1 — Wiper Arm
2 — Wiper Blade

1 — Wiper Blade Pivot Pin
2 — Wiper Arm Receptacle

328

SERVICING AND MAINTENANCE

(Continued)

Installing The Rear Wiper
1. Lift the wiper arm off of the glass.
2. Insert the wiper blade pivot pin into the opening on

the end of the wiper arm and rotate the wiper in to

place.

3. Place with wiper on the glass and close the tail gate.

XHAUST

YSTEM

The best protection against carbon monoxide entry into

the vehicle body is a properly maintained engine exhaust

system.
If you notice a change in the sound of the exhaust system;

or if the exhaust fumes can be detected inside the vehicle;

or when the underside or rear of the vehicle is damaged;

have an authorized technician inspect the complete

exhaust system and adjacent body areas for broken,

damaged, deteriorated, or mispositioned parts. Open

seams or loose connections could permit exhaust fumes

to seep into the passenger compartment. In addition, have

the exhaust system inspected each time the vehicle is

raised for lubrication or oil change. Replace as required.

Under normal operating conditions, the catalytic converter

will not require maintenance. However, it is important to

keep the engine properly tuned to ensure proper catalyst

operation and prevent possible catalyst damage.

NOTE:

Intentional tampering with emissions control systems can

result in civil penalties being assessed against you.
In unusual situations involving grossly malfunctioning

engine operation, a scorching odor may suggest severe

and abnormal catalyst overheating. If this occurs, stop the

vehicle, turn off the engine and allow it to cool. Service,

including a tune-up to manufacturer's specifications,

should be obtained immediately.
To minimize the possibility of catalytic converter damage:



Do not interrupt the ignition when the transmission is

in gear and the vehicle is in motion.



Do not try to start the vehicle by pushing or towing the

vehicle.



Do not idle the engine with any ignition components

disconnected or removed, such as when diagnostic

testing, or for prolonged periods during very rough idle

or malfunctioning operating conditions.

OOLING

YSTEM

WARNING!



Exhaust gases can injure or kill. They contain Carbon

Monoxide (CO), which is colorless and odorless.

Breathing it can make you unconscious and can

eventually poison you

page 288.



A hot exhaust system can start a fire if you park over

materials that can burn. Such materials might be

grass or leaves coming into contact with your

exhaust system. Do not park or operate your vehicle

in areas where your exhaust system can contact

anything that can burn.

CAUTION!



The catalytic converter requires the use of unleaded

fuel only. Leaded gasoline will destroy the effective

ness of the catalyst as an emissions control device

and may seriously reduce engine performance and

cause serious damage to the engine.



Damage to the catalytic converter can result if your

vehicle is not kept in proper operating condition. In

the event of engine malfunction, particularly

involving engine misfire or other apparent loss of

performance, have your vehicle serviced promptly.

Continued operation of your vehicle with a severe

malfunction could cause the converter to overheat,

resulting in possible damage to the converter and

vehicle.

WARNING!



You or others can be badly burned by hot engine

coolant (antifreeze) or steam from your radiator. If

you see or hear steam coming from under the hood,

do not open the hood until the radiator has had time

to cool. Never open a cooling system pressure cap

when the radiator or coolant bottle is hot.



Keep hands, tools, clothing, and jewelry away from

the radiator cooling fan when the hood is raised. The

fan starts automatically and may start at any time,

whether the engine is running or not.

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