2008 CHEVROLET CORVETTE overheating

When to Check and What to Use
The hydraulic clutch uid
reservoir cap has this
symbol on it. SeeEngine
Compartment Overview
on page 5-14for reservoir
location.
Refer to the Maintenance Schedule for the proper uid
to use. SeeRecommended Fluids and Lubricants
on page 6-12. The uid requires changing every
two years. SeeAdditional Required Services on
page 6-6.
How to Check and Add Fluid
Visually check the clutch uid reservoir to make sure
the uid level is at the MIN (Minimum) line on the side of
the reservoir. The hydraulic clutch uid system should
be kept closed and sealed. Do not remove the cap
to check the uid level or to top-off the uid level.
Remove the cap only when necessary to add the
proper uid until the level reaches the MIN line.
Engine Coolant
The cooling system in your vehicle is lled with
DEX-COOL®engine coolant. This coolant is designed
to remain in your vehicle for ve years or 150,000 miles
(240 000 km), whichever occurs rst, if you add only
DEX-COOL
®extended life coolant.
The following explains your cooling system and how to
add coolant when it is low. If you have a problem
with engine overheating, seeEngine Overheating on
page 5-31.
A 50/50 mixture of clean, drinkable water and
DEX-COOL
®coolant will:
Give freezing protection down to−34°F (−37°C).
Give boiling protection up to 265°F (129°C).
Protect against rust and corrosion.
Help keep the proper engine temperature.
Let the warning lights and gages work as they
should.
Notice:Using coolant other than DEX-COOL
®can
cause premature engine, heater core, or radiator
corrosion. In addition, the engine coolant may
require changing sooner, at the rst maintenance
service after each 30,000 miles (50 000 km) or
24 months, whichever occurs rst. Any repairs would
not be covered by the vehicle warranty. Always use
DEX-COOL
®(silicate-free) coolant in the vehicle.
5-28

Adding Coolant
If you need more coolant, add the proper DEX-COOL®
coolant mixture at the surge tank, but only when the
engine is cool.
{CAUTION:
You can be burned if you spill coolant on hot
engine parts. Coolant contains ethylene glycol,
and it will burn if the engine parts are hot
enough. Do not spill coolant on a hot engine.
When replacing the pressure cap, make sure it is
hand-tight and fully seated.
Coolant Surge Tank Pressure Cap
Notice:If the pressure cap is not tightly installed,
coolant loss and possible engine damage may
occur. Be sure the cap is properly and tightly
secured.
The coolant surge tank pressure cap must be fully
installed on the coolant surge tank. SeeEngine
Compartment Overview on page 5-14for more
information on location.
Engine Overheating
You will nd an engine coolant temperature gage on the
instrument panel cluster and a COOLANT OVER
TEMPERATURE message on the Driver Information
Center (DIC). SeeEngine Coolant Temperature
Gage on page 3-44andDIC Warnings and Messages
on page 3-57for more information.
5-31

{CAUTION:
Heater and radiator hoses, and other engine
parts, can be very hot. Do not touch them.
If you do, you can be burned.
Do not run the engine if there is a leak. If you
run the engine, it could lose all coolant. That
could cause an engine re, and you could be
burned. Get any leak xed before you drive
the vehicle.
If there seems to be no leak, with the engine on, check
to see if the electric engine cooling fan is running.
If the engine is overheating, the fan should be running.
If it is not, your vehicle needs service.Notice:Engine damage from running your engine
without coolant is not covered by your warranty.
SeeOverheated Engine Protection Operating Mode
on page 5-33for information on driving to a safe
place in an emergency.
Notice:Using coolant other than DEX-COOL®can
cause premature engine, heater core, or radiator
corrosion. In addition, the engine coolant could
require changing sooner, at 30,000 miles (50 000 km)
or 24 months, whichever occurs rst. Any repairs
would not be covered by the vehicle warranty.
Always use DEX-COOL
®(silicate-free) coolant in
the vehicle.
5-35

Tires
Your new vehicle comes with high-quality tires
made by a leading tire manufacturer. If you ever
have questions about your tire warranty and where
to obtain service, see your vehicle Warranty
booklet for details.
{CAUTION:
Poorly maintained and improperly
used tires are dangerous.
Overloading your tires can cause
overheating as a result of too much
exing. You could have an air-out and
a serious accident. SeeLoading the
Vehicle on page 4-24.
CAUTION: (Continued)
CAUTION: (Continued)

Underinated tires pose the same
danger as overloaded tires. The
resulting accident could cause serious
injury. Check all tires frequently to
maintain the recommended pressure.
Tire pressure should be checked when
your tires are cold. SeeInflation - Tire
Pressure on page 5-66.
Overinated tires are more likely to
be cut, punctured, or broken by a
sudden impact — such as when you
hit a pothole. Keep tires at the
recommended pressure.
Worn, old tires can cause accidents. If
your tread is badly worn, or if your tires
have been damaged, replace them.
SeeHigh-Speed Operation on page 5-68for
ination pressure adjustment for high
speed driving.
5-58

Engine
Air Cleaner/Filter.........................................5-25
Check and Service Engine Soon Light............3-45
Coolant......................................................5-28
Coolant Temperature Gage...........................3-44
Drive Belt Routing.......................................6-15
Engine Compartment Overview......................5-14
Exhaust.....................................................2-35
Oil .............................................................5-17
Oil Life System...........................................5-23
Oil Pressure Gage.......................................3-48
Overheated Protection Operating Mode...........5-33
Overheating................................................5-31
Starting......................................................2-23
Entry/Exit Lighting...........................................3-19
Event Data Recorders.....................................7-18
Extender, Safety Belt.......................................1-26
Exterior Lamps...............................................3-15
Exterior Lighting Battery Saver..........................3-19
F
Filter
Engine Air Cleaner......................................5-25
Finish Damage...............................................5-95
Flashers, Hazard Warning.................................. 3-6
Flash-to-Pass.................................................3-10Flat Tire........................................................5-86
Floor Mats.....................................................2-54
Fluid.............................................................5-27
Automatic Transmission................................5-27
Power Steering...........................................5-39
Windshield Washer......................................5-41
Fog Lamp
Fog ...........................................................3-17
Fog Lamp Light..............................................3-49
Front Air Dam................................................2-21
Fuel............................................................... 5-5
Additives...................................................... 5-7
California Fuel.............................................. 5-6
Filling a Portable Fuel Container....................5-11
Filling the Tank............................................. 5-8
Fuels in Foreign Countries.............................. 5-8
Gage .........................................................3-50
Gasoline Octane........................................... 5-5
Gasoline Specications.................................. 5-6
Running Out of...........................................2-36
Fuses
Engine Compartment Fuse Block.................5-104
Fuses and Circuit Breakers.........................5-100
Instrument Panel Fuse Block.......................5-100
Windshield Wiper.........................................5-99
5