2004 DODGE VIPER radiator cap

²In city trafficÐWhile 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 133
6

Cooling System
WARNING!
You or others can be badly burned by hot coolant or
steam from your radiator. If you see or hear steam
coming from under the hood, don't open the hood
until the radiator has had time to cool. Never try to
open a cooling system pressure cap when the radia-
tor is hot.
Inspection
Coolant protection checks should be made every 12
months (before the onset of freezing weather, where
applicable). If coolant is dirty or rusty in appearance, the
system should be drained, flushed and refilled with fresh
coolant. Check the front of the radiator for any accumu-
lation of bugs, leaves, etc.Check the coolant bottle tubing for condition and tight-
ness of connection at reserve tank and radiator. Inspect
the entire system for leaks.
NOTE:Check the front of the radiator for debris (leaves,
paper, etc.) regularly. A build up of such material could
lead to engine overheating.
Do not remove the cooling system pressure cap when the
cooling system is hot.
Cooling System Ð Drain, Flush and Refill
The cooling system should be drained, flushed and
refilled at the intervals shown on the Maintenance Sched-
ules.
If the solution is dirty and contains a considerable
amount of sediment, clean and flush with a reliable
cooling system cleaner. Follow with a thorough rinsing to
remove all deposits and chemicals. Discard old antifreeze
solution according to recommended procedure.
166 MAINTAINING YOUR VEHICLE

Adding Coolant
DO NOT remove the pressure cap when checking cool-
ant. When adding coolant or refilling system, a 50%
solution of ethylene glycol antifreeze coolant in water
should be used. Higher concentrations (not to exceed
65%) are required if temperatures below ±37ÉF are antici-
pated.
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.
168 MAINTAINING YOUR VEHICLE

WARNING!
The warning words ªDO NOT OPEN HOTº on the
pressure cap are a safety precaution. Never add
coolant to the radiator when the engine is over-
heated. Do not loosen or remove the pressure cap to
cool overheated engine. Heat causes pressure to
build up in the cooling system. To prevent scalding
or injury, do not remove the pressure cap while the
system is hot or under pressure.
Coolant Level
The coolant recovery bottle provides a visual method for
checking the coolant level without removing the pressure
cap.
With the engine warmed up, the coolant level should be
between MIN and MAX on the coolant recovery bottle.
MAINTAINING YOUR VEHICLE 169
7

Pets.................................. 46
Pets, Transporting........................ 46
Placard, Tire and Loading Information......... 112
Power
Accessory Delay......................13,24
Steering..........................107,161
Windows............................. 23
Pregnant Women and Seat Belts.............. 32
Programming Transmitters.................. 18
Radial Ply Tires......................... 120
Radiator Cap........................... 168
Radio................................. 82
Radio Antenna.......................... 90
Radio Operation......................... 90
Rear Axle............................. 176
Rear Wheel Bearings..................... 177
Reclining Front Seats...................... 57
Reformulated Gasoline.................... 127Refrigerant............................ 160
Reminder, Seat Belt.....................30,77
Remote Keyless Entry..................... 15
Replacement Tires....................... 122
Reporting Safety Defects................... 220
Restraints, Child......................... 33
Restraints, Infant......................... 33
Restraints, Occupant...................... 26
Rotation, Tires.......................... 126
Safety Checks Inside Vehicle................. 48
Safety Checks Outside Vehicle............... 48
Safety Defects, Reporting.................. 220
Safety Information, Tire................... 108
Safety Tips............................. 47
Schedule, Maintenance.................... 200
Scheduled Maintenance................... 148
Seat Belt Maintenance.................... 178
Seat Belt Reminder.....................30,77
INDEX 233
10