2005 DODGE VIPER coolant temperature

Trunk Ajar Light
This light indicates that the trunk is not latched.
Engine Coolant Temperature Light
A red LED light on the Coolant Temperature
gauge will illuminate to warn of an overheated
engine coolant condition.
Low Oil Pressure Light
A red LED light on the Oil Pressure gauge will
illuminate to indicate low engine oil pressure. The
light should come on briefly as a bulb check when the
engine is first started. If the light stays on or comes on
while driving, stop the vehicle and shut off the engine.
DO NOT operate the vehicle until the cause is corrected.
NOTE:This light does not indicate how much oil is in
the engine. The engine oil level must be checked under
the hood.
Charge System Light
A red LED light on the Voltage gauge will illumi-
nate when there is a charging system malfunction
or a possible accessory drive belt failure.
CAUTION!
The accessory belt also drives the water pump.
Operating the vehicle with a failed belt can cause
engine overheating and possible severe engine dam-
age.
Fog Light ON Indicator
This light indicates that the fog lights are on.
90 UNDERSTANDING YOUR INSTRUMENT PANEL

Gauges
Tachometer
This gauge shows engine speed in revolutions-
per-minute (RPM) times 1,000. Avoid excessive
engine speeds in any part of the red warning
zone, particularly when driving downhill or in
lower gears.
Coolant Temperature Gauge
This gauge shows the engine coolant tempera-
ture. The gauge pointer will likely show higher
temperatures when driving in hot weather, up
mountain grades, or in heavy stop and go
traffic. If the red LED light turns on, stop the vehicle and
turn off the engine until the cause is corrected.
Oil Temperature Gauge
This gauge shows the oil temperature. The
gauge pointer will likely show higher tempera-
tures when driving in hot weather, up moun-
tain grades, or in heavy stop and go traffic. If
the red LED light turns on, stop the vehicle and turn off
the engine until the cause is corrected.
Oil Pressure Gauge
This gauge shows engine oil pressure when the
engine is running. The pressure will vary with
engine speed, oil viscosity, and engine tem-
perature. Oil pressures will be higher as the
engine is warming up. The normal operating pressure is
between 20 and 80 psi (pounds per square inch). If the
pointer remains in the red range, turn off the engine until
the cause is corrected.
92 UNDERSTANDING YOUR INSTRUMENT PANEL

•In city traffic—While moving, shift into the highest
gear possible to reduce engine RPM.
NOTE:There are steps that you can take to slow down
an impending overheat condition. If your air conditioner
is on, turn it off. The air conditioning system adds heat to
the cooling system and turning off the A/C removes this
heat. You can also turn the Temperature control to
maximum heat, the Mode control to floor, and the fan
control to High. This allows the heater core to act as a
supplement to the radiator and aids in removing heat
from the cooling system.WARNING!
A hot cooling system is dangerous. You or others
could be badly burned by steam or boiling coolant.
If your temperature gauge pointer is in the red area,
turn off the engine immediately. You may want to
call a service center for service. If you decide to look
under the hood yourself, see Section 7 of this
manual. Follow the warnings under the Radiator
Cap paragraph.
WHAT TO DO IN EMERGENCIES 149
6

Adding Coolant
When adding coolant, or refilling the system, a minimum
solution of 50% recommended HOAT ethylene glycol
engine coolant (antifreeze) and distilled water should be
used. Use higher concentrations (not to exceed 70%) if
temperatures below
34°F(
37°C) are anticipated.
Use only high purity water such as distilled or deionized
water when mixing the water / antifreeze solution. The
use of lower quality water will reduce the amount of
corrosion protection in the engine cooling system.
NOTE:It is the owner’s responsibility to maintain the
proper level of protection against freezing according to
the temperatures occurring in the area where the vehicle
is operated.WARNING!
Never add coolant to the radiator when the engine is
overheated. Do not loosen or remove pressure cap to
cool overheated engine. The coolant is under pres-
sure and severe scalding could result.
Cooling System Pressure Cap
The cap must be fully tightened to prevent loss of
coolant, and to insure that coolant will return to the
radiator from the coolant reserve tank.
The pressure cap should be inspected and cleaned if there
is any accumulation of foreign material on the sealing
surfaces.
MAINTAINING YOUR VEHICLE 185
7

the vehicle is not going to be driven in the next 3
weeks, follow the battery recharge procedure in the
Service Manual, then disconnect the battery at the
negative terminal or use the save feature described in
Maintaining your Vehicle section under the Mainte-
nance Procedures sub-section, within Maintenance-
Free Battery.
CAUTION!
Use care when disconnecting the remote positive
cable. It is connected to the battery and can short out
to any metal on the vehicle. Always tape or wrap the
exposed cable end to prevent electrical shorts.
•Disconnecting the battery causes the engine control
system to lose memory of some“learned”functions,
unless using the Battery Save feature described inMaintaining your Vehicle section under the Mainte-
nance Procedures sub-section, within Maintenance-
Free Battery. The engine may run rough when first
started after a battery disconnect until the control
module“relearns”these functions.
Check the battery every 4 to 6 weeks to ensure that the
voltage is above 12.40. Voltage will drop more rapidly
in hot temperatures. If battery voltage drops below
12.40, follow the battery recharge procedure in the
Service Manual.
•Check that the radiator coolant level of protection is to
at least -20°F (-29°C).
•Block the wheels. Do not apply the Parking Brake.
•Make sure that all tires are inflated to the optimum
pressure, (29 PSI).
MAINTAINING YOUR VEHICLE 203
7

SCHEDULE“B”
Follow schedule“B”if you usually operate your vehicle
under one or more of the following conditions.
•Day or night temperatures are below 32°F(0°C).
•Stop and go driving.
•Extensive engine idling.
•Driving in dusty conditions.
•Short trips of less than 10 miles (16 km).
•More than 50% of your driving is at sustained high
speeds during hot weather, above 90°F (32°C).
•Trailer towing.
•Taxi, police, or delivery service (commercial service).
•Off-road or desert operation.
•If equipped for and operating with E-85 (ethanol)
fuel.
NOTE:IfANYof these apply to you then change your
engine oil every 3,000 miles (5 000 km) or 3 months,
whichever comes first and follow schedule“B”of the
Maintenance Schedulessection of this manual.
NOTE:IFANYof these apply to you then flush and
replace the engine coolant every 102,000 miles (164,000
km) or 60 months, whichever comes first, and follow
schedule B of theMaintenance Schedulessection of this
manual.
SCHEDULE“B”221
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Fuses................................ 197
GasCap .............................. 145
Gasoline.............................. 142
Gasoline, Clean Air...................... 142
Gasoline, Reformulated................... 142
Gasoline/Oxygenate Blends................ 143
Gauges................................ 92
Coolant Temperature..................90,92
Fuel................................ 93
Oil Pressure........................... 92
Speedometer.......................... 86
Tachometer........................... 92
Voltmeter............................ 93
General Information...................... 18
Glass Cleaning.......................... 195
Ground Clearance....................... 141
Hazard Warning Flasher.................87,148Headlights............................ 207
Aiming............................. 212
High Beam........................... 78
High Beam/Low Beam Select Switch......... 78
Passing.............................. 78
Switch............................... 75
Time Delay........................... 76
Heater............................... 104
High Beam Indicator...................... 89
Hood Latch Maintenance.................. 180
Hood Release........................... 71
Hoses.............................188,189
Hydraulic Clutch Fluid.................... 192
Ignition
Key ................................. 11
Timing.............................. 170
Wiring System........................ 170
Infant Restraint.......................... 34
INDEX 249
10

Steering
Linkage............................. 180
Power...........................121,178
Tilt Column........................... 78
Storage............................... 202
Stuck, Freeing.......................... 155
Supplemental Restraint System - Airbag........ 41
Tachometer............................. 92
Temperature Gauge, Engine Coolant........... 92
Theft Alarm............................ 20
Theft System............................ 20
Tilt Steering Column...................... 78
Tire and Loading Information Placard......126,127
Tire Identification Number (TIN)............. 125
Tire Markings.......................... 122
Tire Safety Information.................... 122
Tires ............................52,130,241
Air Pressure.......................... 130Alignment........................... 138
Chains.............................. 140
Compact Spare........................ 134
General Information.................... 130
High Speed.......................... 133
Inflation Pressures..................... 131
Load Capacity.....................126,127
Quality Grading....................... 241
Radial.............................. 134
Replacement......................... 137
Rotation............................. 141
Safety..........................52,122,130
Sizes............................... 123
Snow Tires........................... 140
Spinning............................ 136
Storage............................. 141
Tread Wear Indicators................... 137
Top Cover.............................. 59
Towing............................146,155
INDEX 255
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