engine CHEVROLET CORVETTE 2009 6.G Service Manual

{CAUTION:
The brake system might not be working properly if
the brake system warning light is on. Driving with
the brake system warning light on can lead to a
crash. If the light is still on after the vehicle has
been pulled off the road and carefully stopped,
have the vehicle towed for service.
If this warning light stays on after the engine is started,
the parking brake may still be set or there could be
a brake problem. Refer toParking Brake on page 2-32
to see if it is set. If the parking brake is not set, have
the brake system inspected right away.
If the light comes on while driving and a CHECK
BRAKE FLUID message shows on the DIC, pull off the
road and stop carefully. The pedal may be harder to
push or the pedal may go closer to the oor. It may take
longer to stop. If the light is still on, have the vehicle
towed for service. SeeTowing Your Vehicle on
page 4-28andDIC Warnings and Messages on
page 3-54for more information.
Antilock Brake System (ABS)
Warning Light
For vehicles with the
Antilock Brake System
(ABS), this light comes on
briey when the engine
is started.
If it does not, have the vehicle serviced by your
dealer/retailer. If the system is working normally the
indicator light then goes off.
If the ABS light stays on, turn the ignition off. If the light
comes on while driving, stop as soon as it is safely
possible and turn the ignition off. Then start the engine
again to reset the system. If the ABS light stays on,
or comes on again while driving, the vehicle needs
service. If the regular brake system warning light is
not on, the vehicle still has brakes, but not antilock
brakes. If the regular brake system warning light is also
on, the vehicle does not have antilock brakes and
there is a problem with the regular brakes. SeeBrake
System Warning Light on page 3-38.
For vehicles with a Driver Information Center (DIC),
seeDIC Warnings and Messages on page 3-54for all
brake related DIC messages.
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Traction Control System (TCS)
Warning Light
The Traction Control
System (TCS) Warning
light comes on briey while
starting the engine.
If it does not, have the vehicle serviced by your
dealer/retailer. If the system is working normally the
indicator light then goes off.
If the light stays on, or comes on while driving and a
SERVICE TRACTION SYSTEM message displays in
the Driver Information Center (DIC), the vehicle
needs service.
This light comes on when the TCS is turned off and a
TRACTION SYSTEM OFF message displays on the
DIC. When this light is on, the TCS system does not limit
wheel spin.This light turns off when the TCS is turned back on
and a TRACTION SYSTEM ON message displays on
the DIC.
SeeTraction Control System (TCS) on page 4-6and
DIC Warnings and Messages on page 3-54for more
information.
This light also comes on while the vehicle is in the
Competitive Mode. SeeActive Handling System
on page 4-8.
Active Handling System Light
The Active Handling
System light comes on
briey as the engine
is started. If the light
does not, have the
vehicle serviced by your
dealer/retailer. If the
system is working normally
the light goes off.
If the light stays on or comes on while driving, a chime
sounds and a SERVICE ACTIVE HANDLING SYSTEM
message appears on the DIC and the vehicle need
service.
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The system is not working properly and the vehicle
needs service.
This light also comes on when the Competitive Drive
mode is selected.
When the Active Handling System is turned off, the light
comes on, a chime sounds, and the TRACTION
SYSTEM AND ACTIVE HANDLING – OFF message
displays in the DIC. The Traction Control System is off
and the Active Handling System does not assist
with controlling the vehicle.
When the Active Handling System is turned back on,
the light turns off, a chime sounds and the TRACTION
SYSTEM AND ACTIVE HANDLING – ON message
displays in the DIC.
SeeDIC Warnings and Messages on page 3-54for
more information.Engine Coolant Temperature Gage
This gage shows the engine coolant temperature. If the
gage pointer moves into the shaded area, the engine
is too hot.
This means that the engine coolant has overheated.
If the vehicle has been operating under normal driving
conditions, pull off the road, stop the vehicle and
turn off the engine as soon as possible.
SeeEngine Overheating on page 5-39for more
information.United States
Canada
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Tire Pressure Light
For vehicles with a tire
pressure light, this light
comes on briey when the
engine is started and
provides information about
tire pressures and the
Tire Pressure Monitoring
System.
When the Light is On Steady
This indicates that one or more of the tires is signicantly
underinated.
A tire pressure message in the Driver Information
Center (DIC), can accompany the light. SeeDIC
Warnings and Messages on page 3-54for more
information. Stop and check the tires as soon as it is
safe to do so. If a tire is underinated, inate to the
proper pressure. SeeTires on page 5-62for more
information.
When the Light Flashes First and Then is
On Steady
This indicates that there could be a problem with the
Tire Pressure Monitor System. The light ashes
for about a minute and stays on steady for the remainder
of the ignition cycle. This sequence repeats with every
ignition cycle. SeeTire Pressure Monitor System on
page 5-73for more information.
Malfunction Indicator Lamp
Check Engine Light
A computer system called OBD II (On-Board
Diagnostics-Second Generation) monitors operation of
the fuel, ignition, and emission control systems. It makes
sure that emissions are at acceptable levels for the
life of the vehicle, helping to produce a cleaner
environment.
This comes on briey
while starting the engine.
If it does not come on,
have the vehicle serviced
by your dealer/retailer.
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If the check engine light comes on and stays on, while
the engine is running, this indicates that there is an
OBD II problem and service is required.
Malfunctions often are indicated by the system before
any problem is apparent. Being aware of the light
can prevent more serious damage to the vehicle.
This system assists the service technician in correctly
diagnosing any malfunction.
Notice:If the vehicle is continually driven with
this light on, after a while, the emission controls
might not work as well, the vehicle’s fuel economy
might not be as good, and the engine might not
run as smoothly. This could lead to costly repairs
that might not be covered by the vehicle warranty.
Notice:Modications made to the engine,
transmission, exhaust, intake, or fuel system of
the vehicle or the replacement of the original tires
with other than those of the same Tire Performance
Criteria (TPC) can affect the vehicle’s emission
controls and can cause this light to come on.
Modications to these systems could lead to
costly repairs not covered by the vehicle warranty.
This could also result in a failure to pass a
required Emission Inspection/Maintenance test.
SeeAccessories and Modifications on page 5-3.This light comes on during a malfunction in one of
two ways:
Light Flashing:A misre condition has been detected.
A misre increases vehicle emissions and could
damage the emission control system on the vehicle.
Diagnosis and service might be required.
The following can prevent more serious damage to the
vehicle:
Reduce vehicle speed.
Avoid hard accelerations.
Avoid steep uphill grades.
If the light continues to ash, when it is safe to do so,
stop the vehicle. Find a safe place to park the vehicle.
Turn the key off, wait at least 10 seconds, and restart
the engine. If the light is still ashing, follow the previous
steps and see your dealer/retailer for service as soon
as possible.
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Light On Steady:An emission control system
malfunction has been detected on the vehicle.
Diagnosis and service might be required.
An emission system malfunction might be corrected by
doing the following:
Make sure the fuel cap is fully installed. SeeFilling
the Tank on page 5-9. The diagnostic system can
determine if the fuel cap has been left off or
improperly installed. A loose or missing fuel cap
allows fuel to evaporate into the atmosphere. A few
driving trips with the cap properly installed should
turn the light off.
If the vehicle has been driven through a deep
puddle of water, the vehicle’s electrical system
might be wet. The condition is usually corrected
when the electrical system dries out. A few driving
trips should turn the light off.
Make sure to fuel the vehicle with quality fuel.
Poor fuel quality causes the engine not to run
as efficiently as designed and may cause: stalling
after start-up, stalling when the vehicle is changed
into gear, misring, hesitation on acceleration,
or stumbling on acceleration. These conditions
might go away once the engine is warmed up.
If one or more of these conditions occurs, change
the fuel brand used. It will require at least one
full tank of the proper fuel to turn the light off.
SeeGasoline Octane on page 5-6.
If none of the above have made the light turn off, your
dealer/retailer can check the vehicle. The dealer/retailer
has the proper test equipment and diagnostic tools to
x any mechanical or electrical problems that might have
developed.
3-44

Emissions Inspection and
Maintenance Programs
Some state/provincial and local governments have or
might begin programs to inspect the emission control
equipment on the vehicle. Failure to pass this inspection
could prevent getting a vehicle registration.
Here are some things to know to help the vehicle pass
an inspection:
The vehicle will not pass this inspection if the check
engine light is on with the engine running.
To perform a check engine light bulb check with the
keyless ignition, make sure the transmitter fob is
in the passenger compartment. SeeIgnition
Positions on page 2-22. Press the bottom of the
Acc. button on the instrument panel and hold
the button down for ve seconds. The instrument
panel, including the check engine light, will light up
and the ignition will be on, but the engine will not
start — press the bottom of the Acc. button only
briey, less than ve seconds, the accessory power
mode will be turned on, but not the ignition.
After the bulb check, press and release the Acc.
button again to turn the ignition off and avoid
draining the vehicle’s battery.
The vehicle will not pass this inspection if the
OBD II (on-board diagnostic) system determines
that critical emission control systems have not been
completely diagnosed by the system. The vehicle
would be considered not ready for inspection.
This can happen if the battery has recently
been replaced or if the battery has run down.
The diagnostic system is designed to evaluate
critical emission control systems during normal
driving. This can take several days of routine
driving. If this has been done and the vehicle still
does not pass the inspection for lack of OBD II
system readiness, your dealer/retailer can prepare
the vehicle for inspection.
3-45

Engine Oil Pressure Gage
{CAUTION:
Do not keep driving if the oil pressure is low.
The engine can become so hot that it catches re.
Someone could be burned. Check the oil as soon
as possible and have the vehicle serviced.
Notice:Lack of proper engine oil maintenance can
damage the engine. The repairs would not be
covered by the vehicle warranty. Always follow the
maintenance schedule in this manual for changing
engine oil.
The engine oil pressure gage shows the engine
oil pressure in psi (pounds per square inch) or
kPa (kilopascals) when the engine is running.
Oil pressure should be 20 to 80 psi (140 to 550 kPa).
In certain situations such as long, extended idles on hot
days, it could read as low as 6 psi (40 kPa) and still
be considered normal. It may vary with engine speed,
outside temperature and oil viscosity, but readings
above the shaded area show the normal operating
range. Readings in the shaded area tell you that the
engine is low on oil, or that you might have some other
oil problem. SeeEngine Oil on page 5-20. United States
Canada
United States — Z06
and ZR1 ModelsCanada — Z06 and
ZR1 Models
3-46

The engine oil pressure can also be displayed using the
GAGES button on the Driver Information Center (DIC).
SeeDriver Information Center (DIC) on page 3-49.
Security Light
For information regarding
this light and the vehicle’s
security system, see
Theft-Deterrent System
on page 2-18.
Fog Lamp Light
The fog lamp light comes
on when the fog lamps
are in use.
The light goes out when the fog lamps are turned off.
SeeFog Lamps on page 3-16for more information.
Lights On Reminder
This light comes on
whenever the parking
lamps are on.
SeeHeadlamps on Reminder on page 3-15for more
information.
Highbeam On Light
This light comes on when
the high-beam headlamps
are in use.
SeeHeadlamp High/Low-Beam Changer on page 3-8
for more information.
3-47

Fuel Gage
The fuel gage shows
how much fuel the vehicle
has left while the engine
is on.
An arrow on the fuel gage indicates the side of the
vehicle the fuel door is on.
When the needle approaches the low fuel symbol, a
chime sounds and LOW FUEL appears on the Driver
Information Center (DIC) display. There is still a little fuel
left, but the vehicle’s fuel tank should be lled soon.
Press the RESET button to acknowledge a DIC
message(s). Pressing the RESET button also turns off a
DIC message but the LOW FUEL message comes on
again in 10 minutes if fuel is not added to the vehicle.Here are ve things that some owners ask about.
All these things are normal and do not indicate that
anything is wrong with the fuel gage.
At the service station, the gas pump shuts off
before the gage reads the full.
It takes a little more or less fuel to ll up than the
gage indicated. For example, the gage may have
indicated half full, but it took a little more or
less than half of the tank’s capacity to ll the tank.
The gage pointer may move while cornering,
braking or speeding up.
The gage may not indicate the tank is empty when
the ignition is turned off.
The gage reading may change slightly within the
rst several minutes after starting the vehicle.
SeeDIC Operation and Displays on page 3-49for more
information.
3-48