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▫Body Lubrication.....................186
▫Front And Rear Suspension Ball Joints......186
▫Steering Linkage......................187
▫Body Mechanism Lubrication.............187
▫Windshield Washers...................189
▫Exhaust System......................189
▫Cooling System.......................190
▫Hoses And Vacuum/Vapor Harnesses.......195
▫Brake System........................195
▫Brake, Power Steering, And Fuel System
Hoses.............................196
▫Brake And Clutch Fluid.................197
▫Master Cylinder......................197▫Hydraulic Clutch.....................198
▫Transmission........................198
▫Rear Axle...........................199
▫Wheel Bearings.......................200
▫Appearance Care.....................200
Fuses — Power Distribution Center..........203
Vehicle Storage........................208
Replacement Bulbs......................211
▫Interior Light Bulbs....................211
▫Exterior Light Bulbs — Convertible Models . . . 211
▫Exterior Light Bulbs — Coupe Models......212
Exterior Light Bulb Service................212
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ONBOARD DIAGNOSTIC SYSTEM (OBD II)
To meet new government regulations and promote
cleaner air, your vehicle is equipped with a sophisticated
onboard diagnostic system called OBD II. This system
monitors the performance of the emissions and engine
control systems. When these systems are operating prop-
erly, your vehicle will provide excellent performance and
fuel economy, as well as engine emissions well within
current government regulations.
If any of these systems require service, the OBD II system
will turn on the Malfunction Indicator Light. It will also
store diagnostic codes and other information to assist
your service technician in making repairs. Although your
vehicle will usually be driveable and not need towing,
see your dealer for service as soon as possible.CAUTION!
Prolonged driving with the light on could cause
further damage to the emission control system. It
could also affect fuel economy and driveability. The
vehicle must be serviced before any state emissions
tests can be performed.
If the light is flashing, severe catalytic converter damage
and power loss will soon occur. Immediate service is
required.
If the gas cap is not tightened properly, the light may
come on. Be sure the gas cap is tightened every time you
add fuel.
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NOTE:Intentional tampering with emissions control
systems can result in civil penalties being assessed
against you.
WARNING!
You can be badly injured working on or around a
motor vehicle. Do only that 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.
MAINTENANCE PROCEDURES
The pages that follow contain the maintenance service
recommendations by the engineers who designed your
vehicle.
Besides the maintenance items for which there are fixed
maintenance intervals, there are other items that should
operate satisfactorily without periodic maintenance.
However, if a malfunction of these items does occur, it
could adversely affect the engine or vehicle performance.
These items should be inspected if a malfunction is
observed or suspected.
Engine Oil
Checking Oil Level
To assure proper lubrication of your vehicle’s engine, the
engine oil must be maintained, at the correct level. Check
the oil level at regular intervals, such as every fuel stop.
172 MAINTAINING YOUR VEHICLE
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•Trailer towing
•Off-road or desert driving
•If equipped for and operating with E–85 (ethanol) fuel
If none of these apply to you, then change your engine oil
every 6,000 miles (10 000 km) or 6 months, whichever
comes first and follow the maintenance recommenda-
tions in ScheduleA.
CAUTION!
Overfilling the crankcase will cause oil aeration and
loss of oil pressure. This could damage your engine.
Engine Oil Selection
For best performance and maximum protection under all
types of operating conditions, the manufacturer only
recommends full synthetic engine oils that are API rated
as SL/CF and meet the requirements of DaimlerChrysler
Material Standard MS-10725. Use Mopar or an equivalent
oil meeting the specification MS-10725.
If you choose to operate this vehicle in a very aggres-
sive driving style, the manufacturer recommends the
use of a full synthetic engine oil, such as Mobil 1SAE
0W-40.
Engine Oil Viscosity Chart
The proper SAE viscosity grade of engine oil should be
selected based on the following recommendation and be
within the operating temperature shown in the engine oil
viscosity chart.
174 MAINTAINING YOUR VEHICLE
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Drive Belts — Check Condition and Tension
At the mileage shown in the appropriate “Maintenance
Schedule”, check the condition of the drive belt for
condition and proper tension. Improper belt tension can
cause belt slippage and failure.
Inspect the drive belt for evidence of cuts, cracks, or
glazing and replace it if there is any sign of damage
which could result in belt failure.
Spark Plugs
Spark plugs must fire properly to assure proper engine
performance and emission control. Install new recom-
mended plugs with the recommended gap at the speci-
fied mileage.
Refer to the “Vehicle Emission Control Information” label
in the engine compartment for spark plug information.
Catalytic Converter
The catalytic converter requires the use of unleaded fuel
only. Leaded gasoline will destroy the effectiveness of the
catalyst as an emission control device.
Under normal operating conditions, the catalytic con-
verter will not require maintenance. However, it is im-
portant to keep the engine properly tuned to assure
proper catalyst operation and prevent possible catalyst
damage.
176 MAINTAINING YOUR VEHICLE
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Hood Latch
When performing other underhood services, the hood
latch release mechanism and safety catch should be
inspected, cleaned, and lubricated.
It is important to maintain proper lubrication to insure
that the hood mechanisms work properly and safely.
Multi-Purpose Lubricant, NLGI Grade 2, should be ap-
plied sparingly to all pivot and sliding contact areas.
Other Body Mechanisms
The following body mechanisms should be inspected
and, if necessary, all pivot and sliding contact areas of
these components should be lubricated with the lubricant
specified as follows:
Smooth White Body Lubricant - Such as Mopar Spray
White Lube or equivalent:
•Hood hinge
•D/ lid hinge
•Fuel door hinge
•Lock cylinders
•Parking brake mechanism
•Trunk/liftgate latches
•Ash tray
Points That Should Not Be Lubricated
There are many points that should not be lubricated;
some because they are permanently lubricated, some
because lubricants will be detrimental to the operating
characteristics, and some because lubricants will cause
component failures.
In particular, do not lubricate rubber bushings, since this
not only will cause them to fail, but will destroy their
necessary frictional characteristics.
188 MAINTAINING YOUR VEHICLE
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Brake, Power Steering, and Fuel System Hoses
When servicing the vehicle for scheduled maintenance,
inspect surface of hoses and nylon tubing for evidence of
heat and mechanical damage. Hard and brittle rubber,
cracking, checking, tears, cuts, abrasion, and excessive
swelling suggest deterioration of the rubber. Particular
attention should be made to examining those hose sur-
faces 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.
Insure nylon tubing in these areas has not melted or
collapsed.
NOTE:Often, fluids are used during assembly plant
operations to ease the assembly of hoses to couplings.
Therefore, oil wetness at the hose-coupling area is not
necessarily an indication of leakage. Actual dripping ofhot fluid when systems are under pressure (during
vehicle operation) should be noted before hose is re-
placed based on leakage.
High pressure fuel system hoses have unique material
characteristics that provide adequate sealing and resist
attack by deteriorated gasoline.
Use only manufacturer specified hoses or their equiva-
lent in material and specification, in any fuel system
servicing. It is mandatory to replace all clamps that have
been loosened or removed during service.
NOTE:Inspection of brake hoses should be done when-
ever the brake system is serviced and at every engine oil
change. 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 with
possible burst failure.
196 MAINTAINING YOUR VEHICLE
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Convertible Top Care — Convertible Models Only
Use a mild detergent to clean the top. Avoid heavy
scrubbing and rinse with plenty of clean water. Allow to
dry thoroughly before storage.
Carpeting
Vacuum your carpeting regularly to prevent a soil
buildup. Shampoo soiled carpeting with a reliable uphol-
stery cleaner, using a natural sponge or soft bristle brush.
After carpeting dries, vacuum it thoroughly.
Underbody Maintenance
The corrosive materials used for ice and snow removal or
dust control may accumulate on the underbody of your
vehicle. If not removed, these materials may accelerate
rusting and deterioration of underbody components such
as fuel lines, frame, floor pan, exhaust system, etc.
At least twice during the winter months hose down the
wheel wells and underside of the vehicle. Make sure youremove mud and salt from panels, crevices and ledges,
and that all drain holes and channels are free of debris.
NOTE:You can do more harm by hosing off the vehicle
without removing caked mud and debris.
The frame of your Viper is galvanized for rust-through
protection. It is also dipped in a black E-Coat to protect
the welded areas. Avoid any scratches through to bare
metal.
Commercial Car Washes
We do not recommend that you take your Viper through
a commercial car wash.
In the event that you do take your Viper to a commercial
car wash, move the Heater/Air Conditioning blower
control to the lowest setting. This will prevent the possi-
bility of water entering the system.
202 MAINTAINING YOUR VEHICLE