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
The best time to check the oil level is approximately 5
minutes after a fully warmed up engine is turned off or
before starting the engine after it has sat overnight.
Checking the oil while the vehicle is on level ground also
will improve the accuracy of the oil level readings. Add
oil only when the level is below the SAFE mark.Changing Engine Oil
Road conditions and your kind of driving affects the
interval at which your oil should be changed.
IfANYof the following apply to you, then change your
engine oil every 3,000 miles (5 000 km) or 3 months,
whichever comes first and follow the maintenance rec-
ommendations in ScheduleB.
•Day or night temperatures are below 32°F (0°C)
•Stop and go driving
•Extensive engine idling
•Driving in dusty conditions
•Short trip driving of less than 10 miles (16.2 km)
•More than 50% of your driving is at sustained high
speeds during hot weather, above 90°F (32°C)
•Taxi, Police, or delivery service (commercial service)Engine Oil Dipstick
MAINTAINING YOUR VEHICLE 173
7
To minimize the possibility of catalytic converter dam-
age:
•Do not shut off the engine or interrupt the ignition
when the transmission is in gear and the vehicle is in
motion.
•Do not try to start the engine by pushing or towing the
vehicle.
•Do not idle the engine with any spark plug wires
disconnected for prolonged period.
Ignition Wiring System and Ignition Timing
The ignition cables should be kept clean and properly
connected. Terminals should be fully seated. Do not
remove the nipple assemblies from the coil towers unless
the nipples are damaged or cable testing shows high
resistance or broken insulation. Refer to the ServiceManual for the proper procedure to be followed for
checking ignition cable resistance. Cracked, damaged, or
faulty cables should be replaced.
Because of the plastic body shell on your Viper, ignition
cables should be replaced with the specially designed RFI
cables available at your dealer.
Ignition timing cannot be set on this vehicle.
Crankcase Emission Control System
Proper operation of this system depends on freedom
from plugging due to deposits. As vehicle mileage builds
up, the Crankcase Ventilation Valve orifice may accumu-
late deposits. If a valve is not working properly, replace it
with a new orifice. DO NOT ATTEMPT TO CLEAN THE
OLD ORIFICE!
Check the ventilation hose for indication of damage or
plugging deposits. Replace if necessary.
178 MAINTAINING YOUR VEHICLE
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
At Each Stop for Fuel
•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.
•Check the windshield washer solvent and add if
required.
Once a Month
•Check tire pressure and look for unusual wear or
damage.
•Inspect the battery and clean and tighten the terminals
as required.
•Check the fluid levels of coolant reservoir, brake
master cylinder, power steering and transmission and
add as needed.
•Check all lights and all other electrical items for correct
operation.
At Each Oil Change
•Change the engine oil filter.
•Inspect the exhaust system.
NOTE:Also inspect the 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.
•Inspect the brake hoses.
•Inspect the suspension components.
•Lubricate door hinges and check springs.
•Check the engine coolant level, hoses, and clamps.
•Check power steering fluid level.
228 MAINTENANCE SCHEDULES
8
M
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D
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L
E
S
Defroster, Windshield...................... 53
Delay (Intermittent) Wipers................. 85
Diagnostic System, Onboard................ 169
Dimmer Control......................... 77
Dimmer Switch, Headlight.................. 80
Disposal
Antifreeze (Engine Coolant)............... 193
Door Locks............................. 14
Door Locks, Automatic.................... 16
Doors................................. 14
Drive Belts............................ 176
Driving
On Slippery Surfaces.................... 162
Electric Remote Mirrors.................... 70
Emergency Brake........................ 124
Emergency, In Case of
Freeing Vehicle When Stuck............... 163
Hazard Warning Flasher................. 156Jump Starting......................... 158
Overheating.......................... 156
Towing............................. 163
Emission Control System Maintenance......170,226
Engine............................... 168
Break-In Recommendations................ 52
Checking Oil Level..................... 172
Compartment......................... 168
Coolant (Antifreeze).................190,221
Cooling...........................94,190
Exhaust Gas Caution................26,53,151
Fails to Start.......................... 120
Fuel Requirements..................148,220
Oil ...........................172,220,221
Oil Change Interval.................... 173
Oil Disposal.......................... 175
Oil Filter............................ 175
Oil Selection.......................174,220
Overheating........................94,156
INDEX 253
10
Message Center.......................... 91
Mirrors................................ 69
Electric Remote........................ 70
Outside.............................. 70
Rearview............................. 69
Modifications/Alterations, Vehicle............. 7
Mopar Parts.........................171,245
Multi-Function Control Lever................ 76
New Vehicle Break-In Period................ 52
Occupant Restraints....................... 29
Oil, Engine.......................172,220,221
Capacity............................ 220
Change Interval....................... 173
Checking............................ 172
Disposal............................ 175
Filter............................175,221
Materials Added to..................... 175Pressure Gauge........................ 96
Recommendation...................174,220
Viscosity............................ 220
Oil Filter, Selection....................... 175
Onboard Diagnostic System..............169,170
Operator Manuals (Owner’s Manuals)........... 4
Overheating, Engine...................... 156
Owner’s Manual.......................4,246
Paint Care............................. 200
Panic Alarm............................ 18
Parking Brake.......................... 124
Parking On Hill......................... 125
Passing Light........................... 80
PCV Valve............................ 178
Pedals, Adjustable........................ 82
Pets.................................. 52
Pets, Transporting........................ 52
Placard, Tire and Loading Information......... 134
258 INDEX