2008 DODGE VIPER check engine

²Turn the Mode Select knob to the Sealant/Air Mode.
²Connect the Power Plug (5) to a different power
outlet in your vehicle or another vehicle, if available.
Make sure the engine is running before turning on
the TIREFIT kit.
²The Sealant Bottle (1) may be empty due to previous
use. Call for assistance.
(D) After Injecting TIREFIT Sealant:
1. Allow the air pump to inflate the tire to the pressure
indicated on the tire pressure label on the driver-side
latch pillar. Check the pressure in the tire by looking at
the Pressure Gauge (2).
²If the tire inflates to at least 26 psi (1.8 bar) within 15
minutes, proceed to Step 2 of this procedure.
²If tire fails to inflate to 26 psi (1.8 bar) within 15
minutes, perform the procedure steps described
under ª(G) Distributing TIREFIT Sealant to Better
Enable Tire Inflation.º
²Press the Air Pump Power Button (3) to
turn off the TIREFIT kit.
2. Remove the Speed Limit sticker from the top of the
Sealant Bottle (1) and place the sticker on the steering
wheel.
3. Disconnect the TIREFIT kit from the valve stem and
place it in the vehicle.
(E) Securing TIREFIT Sealant in the Tire
Drive the vehicle for approximately 5 miles (8 km) to
ensure distribution of the TIREFIT Sealant within the tire.
WHAT TO DO IN EMERGENCIES 183
6

MAINTAINING YOUR VEHICLE
CONTENTS
m8.4L Engine Compartment................194
mOnboard Diagnostic System (OBD II).........195
mEmissions Inspection And Maintenance
Programs............................196
mReplacement Parts......................197
mDealer Service.........................198
mMaintenance Procedures..................198
NEngine Oil..........................198
NEngine Oil Filter......................201NDrive Belts Ð Check Condition And Tension . . 202
NSpark Plugs.........................203
NEngine Air Cleaner Filter................203
NFuel Filter..........................204
NCatalytic Converter....................204
NIgnition Wiring System And Ignition
Timing.............................205
NCrankcase Emission Control System........206
NMaintenance-Free Battery................206
7

EMISSIONS INSPECTION AND MAINTENANCE
PROGRAMS
In some localities, it may be a legal requirement to pass
an inspection of your vehicle's emissions control system.
Failure to pass could prevent vehicle registration.
For states, which have an I/M (Inspection and
Maintenance) requirement, this check verifies the
following: the MIL (Malfunction Indicator Light)
is functioning and is not on when the engine is running,
and that the OBD (On Board Diagnostic) system is ready
for testing.
Normally, the OBD system will be ready. The OBD
system maynotbe ready if your vehicle was recently
serviced, if you recently had a dead battery, or a battery
replacement. If the OBD system should be determined
not ready for the I/M test, your vehicle may fail the test.Your vehicle has a simple ignition key-actuated test,
which you can use prior to going to the test station. To
check if your vehicle's OBD system is ready, you must do
the following:
1. Insert your ignition key into the ignition switch.
2. Turn the ignition to the ON position, but do not crank
or start the engine.
3. If you crank or start the engine, you will have to start
this test over.
4. As soon as you turn your key to the ON position, you
will see your MIL symbol come on as part of a normal
bulb check.
196 MAINTAINING YOUR VEHICLE

5. Approximately 15 seconds later, one of two things will
happen:
a. The MIL will flash for about 10 seconds and then
return to being fully illuminated until you turn off the
ignition key or start the engine. This means that your
vehicle's OBD system isnot readyand you shouldnot
proceed to the I/M station.
b. The MIL will not flash at all and will remain fully
illuminated until you turn OFF the ignition key or start
the engine. This means that your vehicle's OBD system
isreadyand you can proceed to the I/M station.
If your OBD system isnot ready,you should see your
authorized dealer or repair facility. If your vehicle was
recently serviced or had a battery failure or replacement,
you may need to do nothing more than drive your
vehicle as you normally would in order for your OBD
system to update. A recheck with the above test routine
may then indicate that the system is now ready.Regardless of whether your vehicle's OBD system is
ready or not ready, if the MIL symbol is illuminated
during normal vehicle operation, you should have your
vehicle serviced before going to the I/M station. The I/M
station can fail your vehicle because the MIL symbol is on
with the engine running.
REPLACEMENT PARTS
Use of genuine Mopartparts for normal/scheduled
maintenance and repairs is highly recommended to en-
sure the designed performance. Damage or failures
caused by the use of non-Mopartparts for maintenance
and repairs will not be covered by the manufacturer's
warranty.
MAINTAINING YOUR VEHICLE 197
7

DEALER SERVICE
Your authorized dealer has the qualified service person-
nel, 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 manuals before attempting
any procedure yourself.
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. 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.
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, which
should operate satisfactorily without periodic mainte-
nance. 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 mal-
function is observed or suspected.
Engine Oil
Checking Oil Level
To assure 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.
198 MAINTAINING YOUR VEHICLE

The best time to check the oil level is approximately 5
minutes after a fully warmed 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.CAUTION!
Overfilling or underfilling will cause oil aeration or
loss of oil pressure. This could damage your engine.
Change Engine Oil
Road conditions and your kind of driving affect the
interval at which your oil should be changed. Check the
following list to see if any apply to you.
²Day or night temperatures are below 32ÉF (0ÉC)
²Stop and go driving
²Extensive engine idling
²Driving in dusty conditions
²Short trip driving of less than 10 miles (16.2 km)
Engine Oil Dipstick
MAINTAINING YOUR VEHICLE 199
7

quality filters should be used to assure most efficient
service. MopartEngine Oil Filters are a high quality oil
filter and are recommended.
Drive Belts Ð Check Condition and Tension
Belt tension is controlled by means of an automatic
tensioner. Therefore, no belt tension adjustments are
required. However, belt and belt tensioner condition
should be inspected at the specified intervals and re-
placed if required. Improper belt tension can cause belt
slippage and failure. Low generator belt tension can
cause battery failure.
At the intervals indicated on the ªMaintenance Sched-
ules,º inspect belt and belt tensioner condition. Inspect
belts for evidence of cuts, cracks, glazing, or frayed cords
and replaced if there is indication of damage, which could
result in belt failure. Also, check belt routing to make sure
there is no interference between the belts and other engine
components. See your authorized dealer for service.8.4L ACCESSORY BELT ROUTING
1 Ð Alternator
2 Ð Tensioner
3 Ð Water Pump
4 Ð Power Steering Pump
5 Ð A/C Compressor
6Ð Routing for Non-A/C Applications 202 MAINTAINING YOUR VEHICLE

NOTE:
²Because of the plastic body shell on your vehicle,
ignition cables should be replaced with the specially
designed RFI cables available at your dealer.
²The ignition timing cannot be set on this engine.
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, it should
be replaced with a new orifice. DO NOT ATTEMPT TO
CLEAN THE OLD ORIFICE!
Check the ventilation hose for indication of damage or
plugging deposits and replace if necessary. See your
authorized dealer for service.
Maintenance-Free Battery
The top of the MAINTENANCE-FREE battery is perma-
nently sealed. You will never have to add water, nor is
periodic maintenance required.
The battery is located underneath an access panel inside
the rear compartment on the left side of the vehicle. A
remote battery terminal is located in the engine compart-
ment for jump-starting.
To gain access to the battery, remove the floor portion of
the rear compartment carpet.
206 MAINTAINING YOUR VEHICLE