1993 CHEVROLET SUBURBAN transmission fluid

Scheduled Maintenance Services
Explanation Of Scheduled Maintenance Services
Below are explanations of the services listed in the maintenance charts.
The proper fluids and lubricants to use are listed in this section. 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 ve\
hicle.
1. ENGINE OIL AND OIL FILTER CHANGE* -ALWAYS USE SG OR
SG/CE QUALITY, ENERGY CONSERVING II OILS OF THE PROPER
VISCOSITY. To determine the preferred viscosity oil for your vehicle’s
engine (e.g. SAE 5W-30 or
10W-30), see “Engine Oil” in the Index.
2. CHASSIS LUBRICATION -Lubricate the front suspension, king pin
bushings, steering linkage, transmission, and transfer case shift\
linkage,
parking brake cable guides, propshaft splines
(2 wheel drive), brake
pedal springs, and clutch pedal springs at the intervals specif\
ied.
If you have a 3500 HD, lubricate the king pins and king pin bushings
every
1,500 miles (2500 km) for Maintenance Schedule 1, or every 3,000
(5000 km) for Maintenance Schedule 2.
Ball joints and king pin bushings should not be lubricated unl\
ess their
temperature is
10°F (-12”C), or higher. When the weather is cold, let
them warm up before lubrication
or they could be damaged.
Also, be sure to check all the vehicle fluid levels at this time.
3.
CLUTCH FORK BALL STUD LUBRICATION -Lubricate the clutch fork
ball stud through the fitting on the clutch housing. Lubricant \
must be
added “sparingly” to the fitting, as only.
0066 Ib. (.003 kg) is required to
lubricate the ball stud surface. Do not add lubricant more often than the
intervals in the Maintenance Charts.
Too much lubricant will damage
the clutch
assembly.
4. ENGINE IDLE SPEED ADJUSTMENT (DIESEL ENGINES)* -Adjust to
the specifications shown on the underhood label. You must use
calibrated test equipment.
5. COOLING SYSTEM SERVICE* -Drain, flush and refill system with new
coolant. See “Engine Coolant” in the Index for the proper\
coolant and
mixture
to use in your vehicle.
Also inspect the hoses and replace them if they i cracked, swollen, or
deteriorated. Tighten all hose clamps (except consrant tension clamps).
Remove debris and clean the outside of the radiator and air c\
onditioning
condenser. Wash the radiator neck.
To ensure proper operation, pressure
test the radiator and cap.
* An Emission Control Service
7-1 8
ProCarManuals.com

6. AIR CLEANER FILTER REPLACEMENT* -Replace at 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\
.
7. FRONT WHEEL BEARING REPACK (2 WHEEL DRIVE ONLY) -Clean
and repack the front wheel bearings at each brake relining,
or at the
specified interval, whichever comes first.
8.
TRANSMISSION SERVICE
Automatic Transmission
-Change the transmission fluid and filter every
15,000 miles (25 000 km) for vehicles under 8,600 GVWR or every
12,000 miles
(20 000 km) for vehicles over 8,600 GVWR if the vehicle
is mainly driven under one
or more of these conditions:
In heavy city traffic.
Where the outside temperature regularly reaches 90°F (32°C) or
In hilly or mountainous terrain.
higher.
Frequent trailer pulling.
Uses such as taxi, police, delivery or other commercial service.
If the vehicle is not used mainly under any of these conditions, change
the fluid and filter every
30,000 miles (50 000 km) for vehicles under
8600 GVWR or every
24,000 miles (40 000 km) for vehicles over 8600
GVWR. See “Automatic Transmission Fluid” in the Index for more
information.
Manual Transmission -Transmission fluid does not require periodic
changing.
9. CDRV SYSTEM INSPECTION* -Check the Crankcase Depression
Regulator Valve System
for any worn, plugged or collapsed hoses. Have
the system checked as described in the Service Manual.
10. FUEL FILTER REPLACEMENT --Replace the fuel filter at the specified
interval
or sooner if clogged.
11.
SPARK PLUGS REPLACEMENT” --Replace spark plugs with the type
listed in Section
6. See “Specification Charts” in the Index.
12.
SPARK PLUG WIRE INSPECTION* -Clean wires and inspect for burns,
cracks
or other damage. Check the wire boot fit at the distributor and at
the spark plugs. Replace wires as needed.
*An Emission Control Service
7-1 9
ProCarManuals.com

Scheduled Maintenance Services
When the wheels are removed for rotation, inspect disc brake p\
ads for wear
and rotors for surface condition.
Also inspect drum brake linings for wear and
cracks. Inspect other brake parts, including drums, wheel cylind\
ers, parking
brake, etc., at the same time. Remove any rust
or dirt from the wheel and
mounting surfaces before mounting the wheel.
Inspect brakes more often if driving habits or conditions result in
frequent braking.
Owner Checks and Services
Listed below are owner checks and services which should be made at the
time period specified to help ensure proper safety, emission pe\
rformance, and
dependability of your vehicle.
Be sure any necessary repairs are completed at once. Whenever \
any fluids
or lubricants are added to your vehicle, make sure they are the proper ones,
as shown in this Section.
At Least Once a Month
Tire inflation pressure check --Check the tires for proper inflation. If they
are low, inflate them to the level specified on the certification label
or on the
tire inflation charts. See “Loading Your Vehicle” or “Inflation-Tire Pressure” in
the Index.
At Least Once a Year
Key lock cylinder lubrication --Lubricate key lock cylinders with engine oil.
See the “Recommended Fluid and Lubricants” chart in this section.
Transmission neutral or clutch start switch operation
4 When you are doing this check, the vehicle could move suddenly. If
it does, you or others could be injured. Follow the steps below. I
1. Before you start, be sure you have enough room around the veh\
icle.
2. Firmly apply both the manual parking brake and the regular bra\
ke. See
“Brakes” and “Parking Brake” in the Index.
Do not use the accelerator
pedal.
3. Be ready to turn off the engine immediately if it starts.
4. On automatic transmission vehicles, try to start the engine in each gear.
The starter should work only in
P (Park) or N (Neutral).
7-22
ProCarManuals.com

Recommended Fluids & Lubricants
NOTE: Fluids and lubricants identified below by name, part number or
specification may be obtained from your GM Dealer.
Engine Oil
IEnginelant
II
Hydraulic Clutch System
Hydraulic Brake Systems
Parking Brake Cables
(
(
Power Steering System (
t
Manual Steering Gear
Automatic Transmission
r
Manual Transmission:
a. 5-Speed with Low Gear
1 b. 5-Speed without Low Gear
I
FLUID/LUBRICANT
;M Goodwrench Motor Oil or equivalent for API Service SG
)r SGiCE of the recommended viscosity.
ilixture
of water and a good quality ethylene glycol base
intifreeze conforming to
GM-6038-M (GM Part No. 1052103).
iydraulic Clutch Fluid
(GM Part No. 12345347 or equivalent).
lelco Supreme 11
8 brake fluid (GM Part No. 1052535 or
2hassis grease meeting requirements
of NLGl Grade 2,
2atagory LB or GC-LB (GM Part
No. 1052497).
3iM Power Steering Fluid (GM Part No. 1050017) or
2quivalent conforming to
GM spec 9985010.
3M Lubricant (GM Part No. 1052182) or equivalent.
IEXRON@ IIE Automatic Transmission Fluid (GM Part No.
1051 855). lOT-
3).
a. CastrolCo
Syntorq or equivalent (GM Part No.
b. Standard Transmission Fluid (GM Part No. 12345349). 12346074).
Differential:
a.
Standard (Saginaw) Front
and Rear Axle
I
b. Locking
Transfer Case a. SAE-80W-90 gear lubricant (GM Part
No. 1052271).
b.
SAE-80W-90 gear lubricant (GM Part No. 1052271).
DexronB
IIE Automatic Transmission Fluid (GM Part No.
12345881 ).
IGas- IL
Weather Strips I:
?as Line De-leer (GM Part No. 1051516).
Spray-ASqueek (GM Part No. 1052277).
Column Shift, Transfer Case Shift Lever, and Propeller Shaft.
Clutch Fork Ball Stud
(
(
>hassis grease meeting requirements of NLGl Grade 2,
;ategory LB or GC-LB
(GM Part No. 1052497).
zhassis grease meeting requirements
of NLGl Grade 2,
;ateaorv LB or GC-LB (GM Part No. 1052497).
(Continued next page) TO391
7-25
ProCarManuals.com

Scheduled Maintenance Services
Recommended Fluids & Lubricants
(Cont’d.)
Hood Latch Assembly
a. Pivots and spring anchor b. Release Pawl
Front Wheel Bearings
Propeller
Shaft SplinelUniversal Joint
Automatic Transmission Shift Linkage, Floor
Shift Linkage,
Hood and Door Hinges, Body
Door Hinge Pins, Tailgate Hinge and Linkage,
Folding Seat, Fuel Door Hinae Key Lock Cylinders
Chassis Lubrication
Nindshield Washer Solvent and Anti-Freeze
Neatherstrip
Mer Tailgate Handle Pivot Points a. Engine
oil (GM Part
No. 1050109).
b. Chassis grease meeting requirements
of
GM-6031-M (GM Part No. 1052497).
Chassis grease meeting requirements
of NLGl
Grade 2, Category
LB or GC-LB (or GM Part
No. 1052497).
Chassis grease meeting requirements
of
GM-6031-M EM Part No. 10524971
Engine oil
Use regular engine
oil or a synthetic light
weiaht enaine
oil [SAE 5W-30).
Chassis grease meeting requirements
of
GM-6031 (GM Part No. 1052497).
GM Optikleen washer solvent
(GM Part No.
1051515) or equivalent.
Silicone grease
(GM Part No. 12345579) or
equivalent.
Multi-purpose lubricant meeting requirements
of
GM Part No. 123451 20.
TO392
7-26
ProCarManuals.com

Section
A
Accelerator Control System ........ 6-35
Air Cleaner
.................................... 6-1 6
Air Conditioning
................... 3.5. 6-69
Rear (Wagon Models)
................ 3-8
Refrigerant Capacity
................. 6-69
System Controls
......................... 3-6
Antenna. Fixed Mast
................... 3-21
Antilock Brakes (See “Brakes”)
System Warning Light
............. 2-70
Appearance Care
.......................... 6-57
Materials
.................................... 6-64
Arbitration Program
........................ 8-3
Audio Systems
............................. 3-1 2
AM Radio
................................... 3-1 3
AM-FM Stereo Audio System
with Cassette Deck
.............. 3-14
AM-FM Stereo Audio System
with Cassette Deck and Equalizer
.............. 3-1 7. 3-1 9
Cassette Deck ............................... 3-1 6
Cassette Tape Player Care
.......... 3-21
Automatic Transmission
............... 2-1 7
FI uid
............................................ 6. 1 7
Axle
Front
................................ 2.32. 6-24
Rear
............................................ 6-24
Rear Locking
............................. 2-22
B
Battery ........................................... 6-37
Belts (See “Safety Belts”)
Better Business Bureau Mediation
..................................... 8-3
Blizzard
.......................................... 4-55
Brakes
Adjustment
................................. 4-18
Antilock
...................................... 4-15
Antilock Warning Light
............ 2-70
Fluid
........................................... 6-32
Four-wheel Antilock
................. 4-16
Hydro-Boost System
(Hydraulic Pump)
................. 6-33
Master Cylinder
........................ 6-32
Parking
....................................... 2-23
Pedal Travel
.............................. 4-18
Rear Drum Brakes
................... 4-18
Replacing Parts
........................ 6-33
System Warning Light .2-69, 4-17
Trailer
......................................... 4-60
Wear Indicators
........................ 4-17
Braking
.......................................... 4-13
In Emergencies
........................ 4-18
Break-In, New Vehicle
................ 2-11
Bulb Replacement ....................... 6-37
Replacement Chart
.................. 6-72
9-1
ProCarManuals.com

Skidding ..................................... 4-23
Stuck
in Deep Snow .... 4-56, 5-31
Through Water
............... 2-1 5, 4-34
Uphill
.......................................... 4-28
Winter
........................................ 4-53
With a Trailer
............................ 4-60
Drunken Driving
........................... 4-1 0
E
Electrical System ......................... 6-37
Add-on Equipment
................... 6-67
Engine
Adding Coolant
... 5-1 1, 5-13, 6-27
Air Cleaner
................................ 6-1 6
Block Heater
.......... 2-16, 3-5, 6-16
Computer Command Control
System
..................................... 6-45
Coolant
............................ 6-25, 6-68
Coolant Temperature Gage
...... 2-77
Cooling System
......................... 5-10
Crankcase .................................. 6-69
Exhaust
..................................... 2-28
Fan Noise
.................................. 5-1 6
Identification
................... 6-65, 6-68
Leaving Vehicle While Running
....................... 2-26
Oil (See
“Oil”)
Overheating ................................. 5-8
Running While Parked
............. 2-29
Starting
...................................... 2-1 4
Equipment, Add-on
...................... 6-48
Exhaust System
........................... 6-45
F
Fan Noise ...................................... 5-1 6
Filter Replacement Chart
............ 6-69
Finish
Care
............................................ 6-61
Damage
..................................... 6-62
Automatic Transmission
........... 6-17
Brake
.......................................... 6-32
Fluid Capacities
.................................. 6-68
Coolant
....................................... 5-11
Front Axle ................................. 6-24
Hydraulic
Clutch ....................... 6-21
Leak Check
............................... 6-35
Manual Transmission
............... 6-20
Power Steering
......................... 6-29
Radiator
..................................... 5-13
Rear Axle
.................................. 6-24
Recommended Fluids
.............. 7-25
Transfer Case
............................ 6-23
Windshield Washer
........ 2-40, 6-31
Four-wheel Drive
............... 2-30, 6-23
Transfer Case
................. 2-30, 6-23
Front Axle
..................................... 6-24
Fuel
.................................................. 6-4
Filling Your Tank
......................... 6-6
Foreign Countries
....................... 6-6
Gage
.......................................... 2-76
Gasolines
for Cleaner Air ......... 6-5
Tank Capacity
........................... 6-69
Fuses and Circuit Breakers
.......... 6-43
Fuse Block
................................ 6-44
Headlights
................................. 6-43
Power Windows and
Other Power Options
........... 6-44
Trailer Wiring Harness
............. 6-44
Windshield Wipers
................... 6-44
G
Gages .................................. 2-66, 2-76
Coolant Temperature Gage
..... 2-77
Fuel Gage
.................................. 2-76
Odometer
................................... 2-66
Oil Pressure Gage
.................... 2-78
Speedometer
............................. 2-66
Tachometer
................................ 2-67
Trip Odometer
........................... 2-67
Voltmeter
................. ................. 2-79
Glove Box
..................................... 2-56
9-3
ProCarManuals.com

M
Maintenance Other Items
............................... 6-34
Periodic Inspections
................. 7-24
Record
............................... 7.3. 7-27
Scheduled Maintenance
.. 7.4. 7-1 8
Underbody
................................ 6-62
When Towing a Trailer
............. 4-63
Master Cylinder (See “Brakes”)
Mirrors
........................................... 2-51
Convex Outside
........................ 2-52
Electric Outside
........................ 2-52
Inside
.......................................... 2-51
Model Reference
............................... III
Multifunction Lever ...................... 2-36
...
Turn SignalLane
Change Indicator
........... 2-37, 2-75
0
Odometer ....................................... 2-66
Off-Road Driving (See “Driving”)
Off-Road Recovery
..................... 4-20
Oil ..................................................... 6-9
Additives
................................... 6-1 5
Disposal of Used ...................... 6-1 6
Pressure Gage
.......................... 2-78
To Check
................................... 6-1 0
What Kind to Use .................... 6-12
When
to Add ............................ 6-10
When
to Change ...................... 6-1 5
Owner Checks and Services ...... 7-22
Parking On Hills
...................................... 4.49
Over Things That Burn
............ 2-27
Torque Lock (Automatic
Transmission)
............. 2.24. 4-52
Your Vehicle (Manual Transmission)
........................ 2-26
Parking Brake
............................... 2-23
Passing
Other Vehicles .... 4.21. 4-61
Pavement Markings
........................ 4-8
Periodic Maintenance
Power Inspections
................................ 7-24
Door Locks
.................................. 2-7
Steering
..................................... 4-18
Steering Fluid
........................... 6-29
Winches
..................................... 4-64
Product Service Publications
....... 8-6
R
Radiator Pressure Cap ................ 6-28
Radio (See “Audio Systems”)
Rear Window Defogger
.............. 3-11
Recommended Fluids And Lubricants
......................... 7-25
Recovery Hooks
........................... 5-32
Replacement Parts
...................... 6-68
Reporting Safety Defects
............. 8-4
Road Signs
..................................... 4-2
Roadside Assistance
..................... 8-5
Rocking Your Vehicle
.................. 5-32
S
Safety Belts .................................. 1-13
Center Passenger
........... 1-27, 1-29
Cleaning
..................................... 6-60
Checking Restraint System
.... 1-47
Child Restraints
........................ 1-36
Children
...................................... 1-34
Driver Position
.......................... 1-20
Extender
.................................... 1-46
Lap Shoulder
............................ 1-21
Larger Children
......................... 1-44
Proper Wear
............................. 1-20
Questions and Answers
.......... 1-18
Rear Seat
.................................. 1-30
Replacing After a Crash
......... 1-47
Right Front Passenger
............ 1-27
Small Children and Babies
..... 1-34
Use During Pregnancy
............ 1-26
Why They Work ....................... 1-15
Adults
......................................... 1-20
Reminder Light
......................... 1-19
9-5
ProCarManuals.com