1998 CHEVROLET CORVETTE engine overheat

Downloaded from www.Manualslib.com manuals search engine SERVICE RIDE CONTROL: This message is used to
indicate to the driver that the Selective Real Time
Damping (SRTD) system has detected a malfunction
and that the system must be serviced. The SERVICE
RIDE CONTROL message will always come on when a
failure is detected by the Selective Real Time Damping
system. If
a fault is present in the SRTD which causes
the shocks to be in their full soft condition, the
SERVICE RIDE CONTROL, SHOCKS
INOPERATIVE and MAXIMUM
80 MPH (129 km/h)
will display together. You will never get a SHOCKS
INOPERATIVE and MAXIMUM SPEED
80 MPH
(129
km/h) message without a SERVICE RIDE
CONTROLmessage.
SHOCKS INOPERATIVE: You will hear four chimes
when this message is displayed. To acknowledge that
you have read the message and to remove it from the
display, press RESET. The message will reappear every
10 minutes until this condition changes.
This message indicates that a malfunction is present in
the Selective Real Time Damping system which is
causing the shocks to be in their full soft mode. This is a
warning to the driver that the vehicle handling may be
affected. Have your vehicle serviced as soon as possible.
MAXIMUM SPEED 80 MPH (129 km/h): You will
hear four chimes when this message is displayed.
To
acknowledge the warning, press RESET. After you press
RESET, a message will reappear every
10 minutes until
this condition changes.
This message indicates that the vehicle speed will be limited to
80 mph (129 km/h) when the shock absorber
system has failed and the shocks are in their full
soft
mode. Have your vehicle serviced as soon as possible.
LOW COOLANT You will hear two chimes when this
message is displayed. To acknowledge the warning,
press RESET. After you press RESET, a message will
reappear and you will hear a chime every
10 minutes
until this condition changes.
This message indicates that the coolant in the system is
low. You may need to add coolant. See “Engine
Overheating” in the Index.
COOLANT OVER TEMP: You will hear four chimes
and the CHECK GAGES telltale
will come on when this
message is displayed. To acknowledge the warning,
press the RESET button. After you press the RESET
button, a message will be displayed and you will hear a chime every minute until this condition changes. If you
do not press RESET, the message will remain on the
digital display until the condition changes.
2-101

Downloaded from www.Manualslib.com manuals search engine If the engine coolant exceeds 255 “F (124”C), this
message is displayed. If you have been operating your
vehicle under normal driving conditions, you should
pull off from
the road, stop your vehicle and turn off the
engine as soon as possible. You can monitor the coolant
temperature with the GAGES button on the DIC or the
engine coolant gage on the instrument panel cluster. See
“Engine Overheating” in the Index.
HIGH OIL TEMPERATURE REDUCE ENGINE
RPM: You will hear four chimes when this message is
displayed. To acknowledge the warning, press the
RESET button. After you press the RESET button, a
message will be displayed and you will hear a chime
every minute until this condition changes. If you do not
press RESET, the message will remain on the digital
display until the condition changes.
If the engine oil temperature exceeds
320°F (1 60” C),
this message is displayed. You should check the engine
coolant temperature and engine oil level. If your engine
is too hot, see “Engine Overheating’’ in the Index. Your
vehicle may need service,
so see your dealer. You can
monitor the oil temperature with the GAGES button on
the DIC.
HIGH TRANS TEMP: You will hear four chimes
when this message is displayed. To acknowledge this
warning, press the RESET button. After you press the
RESET button, the message will be displayed every
10 minutes until the condition changes. If you do not
press RESET, the message remains on the display until
the condition changes.
If the transmission fluid temperature rises above 263°F
(128°C) or rises rapidly, this message is displayed. The
transmission may shift gears or apply the torque
converter clutch to reduce the fluid temperature. Driving
aggressively or driving on long hills can cause the
transmission fluid temperature to be higher than normal.
If this message appears, you may continue to drive at a
slower speed. You should also monitor the transmission
fluid temperature and allow it to cool to at least 230°F
(1 10°C). The transmission fluid temperature can be
monitored with the GAGES button on the DIC. See
“Automatic Transmission Fluid” in the Index. You
should also check the engine coolant temperature.
If it is
also hot, see “Engine Overheating” in the Index.
If the HIGH TRANS TEMP message is displayed
during normal vehicle operation on flat roads, your
vehicle may need service. See your dealer for an
inspection.
2-102

Downloaded from www.Manualslib.com manuals search engine Other Messages
Here are more messages that you can receive on your
Driver Information Center. To acknowledge a message
and read another message that may have come on at the
same time, press the RESET button.
0
0
0
0
0
0
0
0
BRAKE BEFORE SHIFT
(Automatic Transmissions Only)
CHANGE
OIL NOW
CHANGE OIL SOON
CRUISE DISENGAGED
CRUISE SET
- MPH (- ktn/h)
DOOR AJAR
ENGINE PROTECTION REDUCE ENGINE
RPM
HATCH AJAR (Coupe)
TRUNK AJAR (Convertible)
HIGH VOLTAGE
0 LOW BRAKE F‘LUID (See “Brake Fluid” in
the Index)
0 LOW COOLANT (See “Engine Overheating” in
0 LOW FUEL (fuel range is less than 50 miles (80 km))
the Index)
0 LOW VOLTAGE
LOW WASHER FLUID
0 PULL KEY - WAIT 10 SEC
RESERVE FUEL
UPSHIFTNOW
2-106
. ..

Downloaded from www.Manualslib.com manuals search engine Section 5 Problems on the Road
Here you’ll find what to do about some problems that can occur on the ro\
ad.
5-2
5-3
5-8 5-13 Hazard Warning Flashers
Jump Starting
Towing Your Vehicle
Engine Overheating
5-16 Cooling System
5-22 If a Tire Goes Flat
5-22 If You’re Stuck: In Sand, Mud, Ice or Snow
5-1

Downloaded from www.Manualslib.com manuals search engine Engine Overheating
You will find an engine coolant temperature gage on the
instrument cluster and a COOLANT OVER TEMP
message on the Driver Information Center
(DIC).
Overheated Engine Protection
Operating Mode
Should a low coolant condition exist and the messages
COOLANT OVERTEMP and REDUCED ENGINE
POWER are displayed, along with the Check Engine
light, an overheat protection mode which alternates
firing groups of four cylinders helps prevent engine
damage. In this mode, you will notice a loss in power
and engine performance. This operating mode allows
your vehicle to be driven to a safe place in an
emergency; you may drive up
to 50 miles (80 km).
1 NOTICE:
After driving in the overheated engine protection
operating mode, to avoid engine damage, allow
the engine to cool before attempting any repair.
The engine oil will be severely degraded. Repair
the cause of coolant loss, change the oil and reset
the oil life monitor. See “Engine Oil, When to
Change” in the Index.
5-13

Downloaded from www.Manualslib.com manuals search engine If Steam Is Coming From Your Engine
y4
‘I
CAUTION:
I
Steam from an overheated engine can burn you
badly, even
if you just open the hood. Stay away
from the engine
if you see or hear steam coming
from it. Just turn
it off and get everyone away
from the vehicle until it cools down. Wait until
there
is no sign of steam or coolant before you
open the hood.
If you keep driving when your engine is
overheated, the liquids in
it can catch fire. You or
others could be badly burned. Stop your engine if
it overheats, and get out of the vehicle until the
engine
is cool.
5-14
-. . . .

Downloaded from www.Manualslib.com manuals search engine NOTICE:
If your engine catches fire because you keep
driving with no coolant, your vehicle can be
badly damaged. The costly repairs would not be
covered by your warranty. See “Overheated
Engine Protection Operating Mode” in the Index.
If No Steam Is Coming From Your Engine
If you get the overheat warning but see or hear no
steam, the problem may not be too serious. Sometimes
the engine can get a little too hot when you:
Climb a long hill on a hot day.
0 Stop after high-speed driving.
Idle for long periods in traffic.
If you get the overheat warning with no sign of steam,
try this for a minute
or so:
1. Turn off your air conditioner.
2.
3.
Turn on your heater to full hot at the highest fan
speed and open the window
as necessary.
If you’re in a traffic
jam, shift to NEUTRAL (N);
otherwise, shift to the highest gear while
driving
-- AUTOMATIC OVERDRIVE (@) or
THIRD (3) for automatic transmissions.
If you no longer have the overheat warning, you can
drive. Just to be safe, drive slower for about
10 minutes.
If the warning doesn’t come back on, you can
drive normally.
If the warning continues, pull over, stop, and park your
vehicle right away.
If there’s still no sign of steam, you can idle the engine
for two or three minutes while you’re parked, to
see if
the warning stops. But then, if you still have the
warning,
turn off the engine and get everyone out of the
vehicle
until it cools down. Also, see “Overheated
Engine Protection Operating Mode” listed previously in
this section.
You may decide not to lift the hood but to get service
help right away.
5-15

Downloaded from www.Manualslib.com manuals search engine The coolant level should be at or above the FULL
COLD mark.
If it isn’t, you may have a leak in the radiator hoses,
heater hoses, radiator, water
pump or somewhere else in
the cooling system.
A CAUTION:
I
Heater and radiator hoses, and other engine
parts, can be very hot. Don’t touch them.
If you
do, you can be burned.
Don’t run the engine
if there is a leak. If you run
the engine, it could lose all coolant. That could
cause an engine
fire, and you could be burned.
Get any leak fixed before you drive the vehicle.
NOTICE:
Engine damage if you keep running your engine
without coolant isn’t covered by your warranty.
See “Overheated Engine Protection Operating
Mode” in the Index.
If there seems to be no leak, with the engine on, check to
see if the electric engine cooling
fans are running. If the
engine is overheating, both
fans should be running. If
they aren’t.
vow vehicle needs service.
5-17