warning CHEVROLET CORVETTE 1993 4.G Owner's Guide

Downloaded from www.Manualslib.com manuals search engine Problems on the Road
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 Me too hot when you:
9 Climb a long hill on a hot day.
4 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 I Turn off your air conditioner.
2. Turn on your heater to €ull hot at the
highest
fan speed and open the
window as necessary.
3. Try to keep your engine under load
(in
a -drive gear where the engine
runs slower).
If you no longer have the overheat
warning,.you
cm drive. Just to be safe,
drive slower for about ten minutes., If
the warning doesn't co~e back on, you'
can drive normally.
I€ 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 jfthe
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.
You- may decide not to l.23 the ho0.d but
to get service help right away.
r
e

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Adding only plain:water.to
yam cooling system can be
dangerous. Plain water, or some
other .liquid like alcohol, can boil
before the proper coolant mix will.
Your vehicle's coolant warning
system is set for the proper coolant
mix. With plain water or the wrong
mix, your engine could get too hot
but
you wouldn't get the overheat
warning. Your engine could catch
fire and you or others could be
burned. Use a 50/50 mix of clean
water and a proper antifreeze.
You can'bebumed if you
. -spiU"CoolaZit hot engine '
parts. Coolant contains'ethylene
glycol and it will burn .if the engine
parts are hot enough. Don't spill
coolant on a hot engine.
When the coolant in the coolant
recovery
tank is at or above COLD,
start your vehicle.
If the overheat warning continues,
there's one more thing you can try. You
can add the proper coolant mix directly
to the coolant high fill reservoir, but be
sure the cooling system is cool before you
do it.
3

Downloaded from www.Manualslib.com manuals search engine If a tire gaes aat, avoid further tire and
wheel damage by drivmg..slowly.to a
level place: Turn on -your ha-zmd
warning flashers.
II

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c-
If You’re Stuck: In Sand, Mud,
Ice or Snow
What you don’t want to do when your
vehicle is stuck is to spin your wheels.
The method
known as “rocking” can
rou must use caution. I help you get out when you’re stuck, but
CAUT/UN I
A: If :you let.your :tires. spin -at
high speed.when the ASR
, . ‘OFE warning light is on, or when
“the SERVICE ASR warning light is
‘on, your tires can explode and you
or others could be injured. And,
spinning your tires with either of
these lights on can cause the
automatic transmission
or other
parts of the vehicle to overheat.
That could cause an engine
compartment fire or other damage.
When you’re stuck, spin the wheels
as little as possible. Don’t spin the
wheels above 35 mph (56 M) as
shown on the speedometer.
Rocking Your Vehicle to Get It Out:
First, turn your steering wheel left and
right. That will clear the area around
your front wheels. You should turn your
ASR system off. Then, shift back and
forth between R (Reverse) and a
forward gear--or if you have a manual
transmission, between 1 or 2 and
R (Reverse)-spinning the wheels as
little as possible. Release the accelerator
pedal while
you shift, and press lightly
on the accelerator pedal when the
transmission is in gear.
If that doesn’t
get
you out after a few tries, you may
need to be towed out.
If you do need to
be towed
out, see the Index under
Towing Your Corvette and Acceleration
Slip Regulation (ASR) System.
237

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262
Rear Axle (CONT~)
What to Use:
To add lubricant when the level
use Me Lubricant (GM Part Na
12345977) or SAE BOW-90 GL-5
lubricant. To completely refill after
-draining, add four ounces (118 mQ af
Limited-Slip Dlfferential Lubricant
Additive (GM Part No. 1052358). Zmn
fill to the bottom of the filler plug hole
with Axle ‘Lubricant (GM Part No.
12345977) o,r SAE 8OW-90 GL-5 gear
lubricant.
Engine Coolant
e foUowing explains your cooling
sgstm and how to add coolant when it
is Im. If you have a problem with
e~@e overheating, see the Index under
Engine Ouerheating.
The proper coolant for your Corvette
* Give freezing protection down to
Give boiling protection up. to 262°F
Protect against rust and corrosion.
Help keep the proper engine
Let the warning lights work as they
-3m (-37°C).
(128°C) ~
temperature.
should.
What to Use:
Use a mixture of one-half clean wafer
(preferably distilled) and one-half
antifreeze that
meets “GM Specification
1825-M,” which won’t damage
aluminum parts. You can also use a
recycled coolant conforming to GM
Specification 1825-M with a complete
coolant
flush and refill. If you have the
LTl engine, use GM Engine Coolant
Supplement (sealer)
with any complete
coolant change.
If you use these, you
don’t need to add anything else.

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WETen your brake fluid falls to a.low
level,
your brake warning light,
SERVICE ABS light and SERVICE
ASR light will come on. The- anti-lock
brake and .acceleration
slip regulation
systems are disabled when your brake
flu.id falls to
it low level. See thedndex
under
Brake System Warning Light;
To Add Brake Fluid:
Lift the cap and pour in fluid to the
MAX mark on the master cylinder. Do
not oveffiI1.
&%at to Add:
When you do need brake fluid, use-
)nly
DOT-3 brake fluid-such as
lelcrr Supreme 1P (GM Part No.
.052535). Use new brake fluid from a
'eded. container only.
NOTlCE
Replacing Brake System Parts
The braking system on a modern
vehicle is
complex. Its many parts have
to be
of top quality -and work well
together if the vehicle is to haye really
good braking. Vehicles we design and
test have top-quality GM brake-parts in
the&, as
your Corvette does when it is
new. When you replace parts of your
braking 'system-for example, when
your brakelinings wear down and you
have to have new ones put in-be sure
you get new genuine GM replacement
parts. If.you don't, your brakes may no
longer work properly. For example, if
someone.puts
in b.r&e linings that are
wrong for your vehicle, .the balance
between your
front and rear brakes can
change, for the worse. The braking
performance
you've come to expect can
change in many other ways if.-someone
puts
in the wrong replacement brake
parts.
27 I

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Service & Appearance Care
Tra~ti~n-A, 6, C
33% traction grades, from highest to
.lowest are:
A, B, and C. They represent
the tire's ability to stop
on wet pavement
as measured under controlled conditions
on specified ,government test surfaces
of
asphalt and concrete. A tire marked C
may have podr.traction p-erformance.
Warning: The traction grade assigned
to.
this tire is based on braking (straight-
ahead) traction
tests and does not
include cornering (turning) traction.
186.
Temperature-A, B, C
The temperature grades are A (the
highest),
B, and'C, representing the
tire's-resistance to the generation of
heat and its ability to dissipate heat
when tested under controlled conditions
on a specified indoor laboratory test
wheel: Sustained high temperature can
cause the inaterid af the tire to
degenwate.-and
reduce tire @e, and
excessive temperature can
lead to.
sudden tire failure. The-grade
C
corresponds to. a level of performance
which
dl passenger car tires must meet
under:the Federal
Motor Vehicle Sa€ety
Standard
NO.. 109. Grades B.and A
represent higher levels of perfomnance on
the laboratory test wheel than the
minimum
required by law.
Warning: The temperatute grade for
this tire 'is established for a tire that is
properly inftated and not overloaded.
Excessive
speed, underinflation, or
excessive loading, iither separately or in
combination, cah cause heat buildup
and possible
tire failure.
Those grades are
molded on the
sidewalls of passenger car tires.
While the tires available
as standard or
optional equipment on General
Motors
vehicles may vary with. respect to these
grades, all such
tires meet Gene$d.
Motors performance
standards and
have
been appToved for use QII General
Motors vehicles. All passenger type
(P
Metric) tifes .must conform to federal
safety requirements in addition to these.
grades.

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Fuse Usage (CONT.)
Position Rating
(AMP.)
27 5
28 15
29 5
30 10
31 5
32 5
33 5
34 15
35 5
36 5
37 20
38 5
39 5
40 5
41
42 20
43 5
44 15
45 25
Circuit Breakers:
K 30
L
M
N
P
3.0
1 308
Circuitry
Instrument Cluster; Driver Information Center; Supplemental Inflat\
able Restraint (Air Bag) D.E.R.M.; Acceleration
Slip Regulation
Switch
Back-up Lamps Switch Gear Solenoid; Transmission Position Switch
Primary Coaling Fan Relay Coil; Secondary Cooling Fan Relay Coil '
Secondary Butterfly Relay (LT5); Direct Ignition Module; Camshaft Sensor; Traction Buffer; Cannist\
er Purge
Solenoid; Exhaust
Gas Recirculation Control (LT1); Gear Relay (Manual)
Power
Mirror Adjuster Control; Lighted Rearview Mirror; Visor Vanity Mirrors
Cruise Control Engage Switch Daytime Running Lamps Module; Low Tire Pressure Warning Module
Engine Control Module
Supplemental Inflatable Restraint System
Central Control Module
Dome Lamp Relay; Footwell Courtesy Lamps; Do.0~ Cpurtesy Lamps; Glove Compartment Lamps; Lighted Rearview
Mirror
Bose
Amplifier Relay; Power Antenna Relay; Cargo Compartment Lamps
LCD Tone Generator
Central Control Module
2
Radio Receiver Box (Battery); Radio Control Head; Passive Keyless Entry Module
Blank
Power Door Lock Switches
A/C Programmer
Cigar Lighter
Hatch or Deck
Lid Release Relay
4
Power Seats
Blank
Power Windows
Blank
Blank

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Section C: Periodic Maintenance Inspections
Listed below are inspections and services which should be performed at least twice a year (for instance, each spring and fall).
You should let your- GM dealer's service department or other qualified ssvj,cg [email protected] do these j-obs. Make sure any necessary
repairs are completed
at once.
INSPECTION
OR SERVICE
Steering and
Suspension Inspection
Tire and Wheel
Inspection
Exhaust System
Inspection
~-
Rear Axle Service
Brake System
Inspection
WHAT SHOULD BE DOME
Inspect. the front and rear susp-ension and steering system for damaged, loose or missing parts,
signs of wear, or lack of lubrication. Inspect the power steering lines and hoses. for proper
hookup,
bindmg-, leaks, cracks, chafing, etc.
Inspect the tires for uneven wear or damage. If there is irregular or premature wear, check the
wheel alignment. Inspect for damaged wheels.
Inspect the complete exhaust system. Inspect the
body neat the exhaust system. Look for broken,
damaged, missing or out-of-position parts as well as open seams, holes, loose connections, or
other conditions which could cause a heat buildup in the floor pan or could let exhaust fumes
into the- vehicle.
See the Index under Engine Exhaust.
Check:the gear lubricant leve1.h the rear axle and add if needed. See the Index: under Rear Axle.
A fluid loss in this system;may indicate a problem. Check the system and repair it if needed.
Inspect the complete system. Inspect brake lines and
hoses for proper hookup, binding, leaks,
cracks, chafing, etc. Inspect disc brake pads for wear and rotors for surface condition. Inspect
-other brake parts, .hcluding calipers, parking brake, etc. Check parking brake adju\
stment. You
may need
to have your brakes inspected more often if your driving habits or conditions result in
frequent braking.
NOTE:. A low brake fluid level can indicate worn disc brake pads which may need to be
serviced.
Also, if 'the brake system warning light stays on or comes on, something may be wrong
with .the brake system. See the Index under Brake System Warning Light. 'If your anti-lock brake
systemwarning light stays on, comes on or flashes, something may be wrong with the anti-lock
brake system. See the Index under Anti-Lock Brake System Warning Light.

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ABS Active Light ........................... 117
ABS Service Light ........................... 117
ABS Light ......................................... 117
Acceleration Slip Regu’laticin
(ASR) System .......................... 89,. 175
Accessory Wiring . Plug .................... 147
Action Center, Corvette ................... 343
Adding
Brake Fluid
.......... ........... ............ . 27 1
Electrical Equipment ...... 65, 146, 304
Engine Coolant ..... 216, 262,311,3.27
Engine Oil ............................... 250, 31 1
Hydraulic Clatch Fluid’ ......... 260, 3 17
Power Steeting Fluid ............ 269, 318
Rear Axle Fluid ..................... 262, 318
Sound Equipment ........................... 146
Transmission Fluids. ..... 25.9,260, 317
Windshield Washer
Fluid ............................... 84, 269, 3 17
Air .Bag (see Supplemental Inflatable
AirCieaner Filter ..................... 254, 312
.Air Conditioner ....................... 136., ‘142
Alcohol, .Driving Under thi Influence
of ..................................................... 169
Restraint)
Alcohol in Gasoline ......................... 242
Aluminum Wheels
Cleaning
................................ 296. 301
Antenna, Power ............................... 161
Antifreeze ......... 216, 262, 263, 311., 317
Anti-Lock Br.& e
Removing ....................................... 228
System (ABS) ....................... 117? 1-73
Anti-Lock Brake System Light ........ 117
Ashtray and Lighters .......................... 96
ASR Off Light .............................. .... 116
ASR System ................................. 89, 175
Cassette Playek ........................... 149
Music System) ............................ 152
Music System) ............................ 155
Appearance Care .............................. 289
ASR Active Light ............................. 115
Audio Systems ................................. 146
AM/FM Stereo with
.AM/F M. Stereo-with
Cassette Player
(Delco-Base@
AM/FM Stereo with CassetteKD
Player (Delco-Bose*
Care of Audio Systems ................. 160
-Radio Reception. For the Best ...... 159
Setting.the Clock ............................ I48
Automatic Electroriic Climate
Aptomatic
Transmission
Control ........................................... 140
Adding Fluid ................................. 259
Axle, Rea Liniited-Slip ....................... 76
Checking Fluid ................................. 2.56
Shifting., ....................................... 67, 78
&ry ..................................... 205, 272
Jump Starting ..........................?........ 205
Warnings .......................... 205, 206, 272
Battery Warning . Gage ..................... 105
Battery Warning Light ....................... 118
Blizzard ............ ..i.. ........................... 200
Block Heater, Engine ......................... 66
“Blowout, ” Tire .................................. 224
Brake AdjustmenL
..................................... 178
Fluid ...................................... 270, 317
Master Cylinder ............................ 270
Parking ............................................. 77
Pedal Travel .................................... 178
Warning Light .................................. 106
Wear Indicators .............................. 177
351 I..
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