maintenance CHEVROLET CORVETTE 1993 4.G Owner's Manual

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Section A: Scheduled Maintenance Services (cant.)
€xplanation of Scheduled Maintenance Services
Below are explanations of the services listedh Schedule I
and Schedule 11.
ITEM
NO. SERVICE
1 Engine OiI and Filter .Change*-Use -only API
Service SG Energy Conserving II oils of the proper
viscpsity.
To determine the preferred viscosity for
your vehicle'-s engine, see the Index under Engine
Oil. The engine requires a special oil rneethg-GM
Standard GM4718M. Oils meeting-this Standard
may be identgied. as synthetic, and should also be
ifientified as APT .Sc?rvice SG. However, not all
Synthetic
API Service SG oils will meet this GM
Standard. You should look for and use only an.oi1.
that. meets GM, Standard GM47-18M.
Your- vehicle has an Engine Oil Life Monitor. This
monitor will show you when to change the oil. See
the Index under Engine Oil Life Monitor.
The proper fluids and lubricants to use are listed in Section
D, Make sure whoever services. your vehicle uses these. All
parts should be replaced and .all necessary repairs done
before you or anyone else drives the vehicle.
ITEM
NO.
2
3
SERVICE
Chassis Lubrication-Lubricate- the transmission
shift
.linkage, parkhg brake cable guides,
underbody contact points and linkage. Lubricate
the front sus.pension.
Engine
A~ctxsory Drive Beit In'spectim-.Inspect
the bekfor-cixxlcs, fraying, wear and proper
tension. Replace as -needed.
.. -NOTE: .To determine your engine's dispta6mmt and code, see the Index under Eagine Identification.
* An Emission Cpntrol Service.
-i? The US. Environmental ProteGtion Agency has. &ermined that the. failure to perform this maintenance item will not nullify the ewsii;sion
warranty
or limit recallliabilfty priorto ;he completion .of vehicle useful life. Geizel-a1 Motors, however, urgs that a12 recmimended
mairztenanceseruices
be:performed at the indicated intervals and the-maintenance be recorded in Section E: Maintenance Record.
330

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Section A: Scheduled Maintenance Sewices (cant.)
ITEM
NO.
.8
SERVICE
Air Cleaner Filter Replacement*-Replace every
30,000-miles (50 000 km) or more often under
dusty conditions. Ask your dealer for the proper
replacement intervals for your driving conditions.
ITEM
NO. SERVICE
9 Fuel Tank, Cap and Lines Inspection*+inspect
the- fuel tank, cap and lines (including fuel rails
and injection assembly) for damage or leaks.
Inspect fuel cap gasket for 'm even filler ,neck.
imprint oi: any damage.. Replace parts as needed.
Perio-dic replacement of the .fuel filter is not
required.
. * An Emission Control Si?rvi&.
b The U.S. Environmental Protection Agency has determined that the failure to perform this maintenance item will not nullify tho emission
wmlranty or .limit recall liability prior ta the completion of vehicle useful life. General Motors, however, urges that all recommended
maintenance services
be perJomzed at the indicatedtntmals.a.nd the.maintenance be. recorded in Sectioit E: Maintenance Reccyd.
= 332

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Section 6: Owner Checks & Services (Cant.)
CHECK
OR .SERVICE
Key Lock Cylinders
Body Lubrication
WHAT TO DO
Lubricate the key lock cylinders with the lubricant specified ii.1 Section D.
Lubricate all body door hinges. Also lubricate all hinges and latches, .including those for the
hood, rear compartment, glove. box dool; console door and any folding- seat hardware. Section D
tells you what to use.
I. Before you start, be sure you have enough room around the vehicle.
2. Firmly apply both the parking brake (see the Index under Parking Brake if necessary) md the
regular brake.
NOTE: Do not use the accelerator pedal, and be -ready to turn off the engine immediately if -it
Starts.
work only in P (Park) or N (Neutral). If the starter works in any other positbn, your vehicle
needs service.
On manual transmission vehicles, put the shift lever in N (Neutral], push the clutch down
halfway,
and try to start the engine. The starter should work only when the c1.utch.i~ pushed
down d the way to the floor. If the .starter works when the clutch isn't pushed all the way
down, your vehicle needs service.
3. On aummtic transmission vehicles, try to start the engine in ea& gi%i&. The startejc should

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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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Section D: Recommended Fluids .& Lubricants (Conr.>
USAGE
Key Lock Cylinders
Manual Transmission
shift Linkage
Aut~mtic Transmission
Shift Linkage
Clutch Linkage Pivot
Points
'Floor Shift Linkage
Chassis Lubrication
Windshield Washer
Solvent
m m . 338
FUJID/UIBRICANT
Lubricate with Multi-Purpose Lubricant (GM Part No. l2345120), synthetic ;sAE 5W-30. engine
oil.or silicone lubricant (GM PartNo. 105227": or 10522'77).
Chassis lubricant meeting requirements of.NLGI Grade 2,,category LB or GC-LB (or GM .Part
No. 1052@7).
Engine oil.
Engine oil.
Engine 03.
Chassis lubricant meeting requirements of KG1 Grade 2, Categury LB or GC-LB
(or GM Part No. 1052497).
AxleLubriCant (GM Part No. 12345477) or SAE. SOW-90 GL-5 Gear Lubricant,, and Limited-
Slip DBerential Lubricant. Additive (GM Part..NO. 105235,8) or .equivalent where .required. See
the lndar under Rear Axk.
GM Optikke@ Waher SQlvent [GM par?: No. .105l515) Qr equivglgpt-. ,- . -

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Section E: Maintenance Record
After the scheduled services are. jperfomed, tecord the. date,
odometer readingpwd who performed-the service in the
columns indicated. When ccmpleting the Maintenance
Perfmined column, insert-the nurnbeis frm:the Schedule I
or Schedule. I1 'mairitenance charts which correspond to the
maintenance performed. Also, you should retain all
maintenance receipts. your Corvette owner's portfolio is-a
convenient place 'to store them.

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I i.
P
Underbody Maintenance ............... 302
Warnings ............................... 289, 297
Weatherstrips
................................ 301
Windshield and Wiper Blades ...... 295
Cleaning Your C.onvertible Top ....... 297
Climate Control
................................ 136
Air Conditioner ...................... 136, 142
Automatic Electronic Climate Control
........................................ 140
Heater .................................... 137, 144
Ventilation ............................ 137, 145
Clock, Setting the ............................ 148
Clusters, Instrument Panel .............. 100
Compact Disc Player
(see
Audio Systems)
Compact Spare Tire .......................... 235
Concealed Headlights ......................... 90
Control of a Vehicle ........................... 171
Convertible Hardtop ........................ 128
Convertible
Top ............................... 124
Coolant ............. 216, 262, 263, 311, 317
Adding .. 216,218,222,262,263, 266
Pressure Cap ................................. 268
Convex Outside Mirror ...................... 93
Checking &
High Fill Reservoir
Low Coolant Light ......................... 112
Proper Mixture to Use ........... 217. 262
S.a€ety
Warnings .... 106 ,. 217.263.264. 267
Temperature Gage ........................ 106
Corvette Action Center .................... 343
Cruise Control
................................... -84
Cup Holder ......................................... 96
Curves,
Driving on ........................... 179
Customer Assistance Infomation ... 341
DAB (Delayed Accessory Bus) ........ 57
Daytime Running Lights ................... 90
Defensive Driving
............................ 168
Dead Battery: What to . Do ............... 205
Defogger, Power Mirror .................... 139
Defogger. Rear Window ........... 138. 144
Defrosting Window .......................... 137
Dimensions ...................................... 3 16
Directional Controls. Electronic Climate
.......................................... 145
Door Ajar Light ....................’............. 107
Door Locks .......................................... 43
Dcmnshifting ................................. 69, 73
.Driver Idormation Center ............... 112
Driver Pasition .................................. 23
Driving ............................................. 163
At Night ........................................... 184
City ................................................ 190
Controlling a Skid .......................... 183
Drunken ......................................... 169
Freeway ........................................... 191
Hill and Mountain ....................... 195
Driver’s Side SIR (“Air Bag”) ........... 26
Defensively .................................... 168
In a Foreign Country ..................... 243
In Fog, Mist and Haze .................. 189
In the Rain ...................................... 186
Long Distance ............................... 193
Loss of Control ............................. 183
On Cmes ...................................... 179
Passing .................................... 87, 181
Through Deep Standing Water ....... 65
Winter Driving ............................... 198
Drunken Driving ............................ 169
Electric Outside Mirror Control ..... 93
Electrical Equipment,
Electronic Heating
. and
.Adding
.............................. 65., 146, 304
Air Conditioning ............................. 310

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I
= 362
Ingide Rearview Mirror ...................... 92
Instrument Panel ................................ 9.9,
Clusters .......................................... 100
Warning Lights ............................... 102
Jck, Tire .......................................... 226
Jump Startmg .................................... 205
K y, ’I Engine Power ........................... 56
‘Intensity Control .............................. 91
Key Release Button ............................ 60
Keys ..................................................... 42
Lane Change Indicator ............. i ...... 82
Lap-Shoulder Safety Belt .................. 23
Front ................................................. 23
Use by Children .......................... 32, 36
Latches, Seatback ............................... 17
Lighter ................................................. 96
Lights
Daytime Running
Lights ................ 90
Headlights .......................... 89, 90, 185
Keyless Entry System .................. 44, 120
Fog ..................................................... 92
Operation .......................................... 90
Reading/Map ................................... 92
security .......................................... 108
Taillights .......................................... 89
.Removing & Replacing Bulbs ....... 273
Replacement Bulbs ........................ 314
Turn Signal ....................................... 82
Underhood ..................................... 249
Warning Lights ............................... 102
Limited-Slip Rear Axle ....................... 76
Loading Your Vehicle ....................... 280
Lock, Torque .................................... 198
Locks ...............I.. .................................. 43
Long Distance Driving .................... 193
Low Battery ..................................... 205
Low Coolant Warning Light ........... 112
Low Fuel Warning .........;.................. 103
Low Oil Light ................................... 118
Low Oil Pressure Warning ............... 104
Low Tire Pressure Light ................... 113
Low Tire Pressure
Warning System .............................. 113
Lowering Your Convertible Top ..... 125
Lubricants & Fluids ......................... -3 17
Luggage Carrier .................................. 94
Mbtenance Record ...................... 340
Maintenance Schedule ..................... 321.
Malfunction Indicator Lamp ............ 118
Manual Front Seat ............................... 14
Manual Lap4 houlder
Safety Belt ....................................... 23
Manual Reclining Seatback ................. 16
Manual Transmission
Adding Fluid
.................................. 260
Checking Fluid ............................... 259
shifting ............................................ 70
Methanol in Gasoline ....................... 241:
Mileage Indicator
Mirrors (see
Odometer G Speedometer)
Convex Outside ............................... 93
Power Remote
Control .................... 93
Mountain Driving ............................ 195
Inside Manual DayLNight ................ 92
Visor Vanity .................................... 94
New Vehicle “Break-In” Period ........ 59
Night Drivlng .................................... 184

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Replacement. Windshield Wiper
Blade ............................................. 279
Replacing Bulbs ............................... 273
Replacing Tires ................................ 284
Replacing Wheels ............................. 287
Reporting Safety Defects .................. 346
Restraints, Child .................................. 33
Road Signs ....................................... 164
Color ............................................... 164
Shape ............................................. 165
Symbols .......................................... 166
Tr&c Lights ................................. 166
Yom Own Signals ......................... 167
Roads, Hill and Mountain ................ 195
Roadside Assistance Numbers ......... 347
Rocking Your Vehicle ...................... 237
Roof Panel, Removable .................... 120
Rotatron, Tire ..................................... 283
Rough Idling ....................................... 80
Replacing Safety Belts ........................ 58
..
S afety Belts ....................................... 1 7
Adults ................................................ 22
.Checking. .......................................... 37
Children ..................................... 32, 36
Child Restraints .............................. 33
Child Restraints-How to
Install Them .................................. 34
Child Restraints, Where to Put ....... 34
Cinch Feature ............................. 24, 35
Cleaning ......................... .i .............. 295
Driver Position ............................... 23
Extender .......................................... 37
How 'to Wear ............................. 22, 23
INFL REST (Inflatable
Restraint) Light
.................... 27, 115
Larger Children ............................... 36
Lap-Shoulder Belt ............................ 23
Passenger Belts ............................... 31
Pregnancy, Use During .................... 31
Replacement .................................... 38
Questions & Answers ........ .21,24, 36
Reminder Light ................................ 22
Right Front, Adult Passenger ......... 31
Smaller Children and 3abies ............ 32
Supplemental Inflatable 'Restraint
(SIR) .............................. 26
Top Strap ........................................ 34
Torn .................................................. 38
Twisted ............................................. 25
Why You Should Wear Safety Belts ... 19
Scheduled Maintenance Services .... 524
Scotchgard'" Fabric Protector ........ '291
Seat Belts (see Safety Bdts)
Seat Controls ........................................ 14
Sea~s .................................................... 14
.Manual Front Seat .......................... 14
. Manual Reclining Seatback ............ 16
Power Seat ...................................... 14
Reclining Seatback. ........................... 16 .
Seatback Latches .............................. 17
Sport Seat ........................................... 15
Secwrity Light ............................ .56, 108
Security Shade ................................... 96
Selective Ride Control ....................... 76
Sewice ASR Light ............................ 116
Service Engine S.oon Light- ............... 118
Service Information .......................... 240
Service LTPWS Light ...................... :114
SeZYice . Parts Identification Label .... 304
Service Publications ........................ 348 .
Service Publications Order Form ... 351
Service Ride Control Light ............... 119
Service Station Information
.............. 368
Setting the Clock .............................. 148
Setting- the Trip Odometer ............... 111
S hilt Light ............................................ 72
c