1993 CHEVROLET ASTRO PASSENGER service schedule

Downloaded from www.Manualslib.com manuals search engine 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 th\
e vehicle.
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). See “Engine Oil” in the Index.
bushings, steering linkage, transfer case shift linkage, parking \
brake cable
guides, propshaft splines, universal joints and brake pedal spri\
ngs at the
intervals specified on the proper maintenance schedule or at ev\
ery
engine oil change, whichever comes first.
2.
CHASSIS LUBRICATION -Lubricate the front suspension, king pin
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.
COOLING SYSTEM SERVICE* -Drain, flush and refill system with new
coolant. See the Index under “Engine Coolant” for the pro\
per coolant and mixture to use in your vehicle.
Also inspect the hoses and replace them
if they are cracked, swollen, or
deteriorated. Tighten all hose clamps. Clean the outside of the radiator
and air conditioning condenser. Wash the radiator neck.
To ensure proper
operation, pressure test the radiator and cap.
4. AIR CLEANER FILTER REPLACEMENT* -Replace at specified
intervals. Replace more often under dusty conditions. Ask your \
dealer for
the proper replacement intervals for your driving conditions.
5. 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.
* An Emission Control Service

Downloaded from www.Manualslib.com manuals search engine 13. TIRE AND WHEEL ROTATION AN- INSPECTION -For proper wear
and maximum tire life, rotate tires at the first
6,000 miles (1 0 000
kilometers) for Schedule I or 7,500 miles (12 500 kilometers) for
Schedule
II and then every 7,500 miles (12 500 kilometers) thereafter.
Follow the instructions and patterns shown in Section
6. Check tires for
uneven wear or damage.
If irregular or premature wear is apparent,
check wheel alignment.
Also, check for damaged wheels. See “Tires” in
the Index for more information.
14.
DRIVE AXLE SERVICE -Check readfront axle fluid level and add as
needed. Check constant velocity joints and axle seals for leaki\
ng.
Locking differential -Drain fluid at first oil change and refill. Check
fluid level and add as needed at subsequent oil changes. In d\
usty areas, or trailer towing applications drain fluid at every 15,000 miles
(24 135 kilometers) and refi1l.t
Standard differential -Check fluid level and add as needed at
every oil change. In dusty areas, or trailer towing application\
s, drain
fluid every
15,000 miles (24 135 kilometers) and refi1l.t
15.
BRAKE SYSTEM INSPECTION -When the engine oil is changed,
inspect the lines and hoses for proper hookup, binding, leaks, \
cracks,
chafing, etc. Check the parking brake adjustment, and the fluid\
level in
the master cylinder.
A low fluid level can indicate worn disc brake pads
which may need
to be serviced$
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, wh\
eel
cylinders, parking brake, etc., at the same time.
Inspect brakes more often if driving habits or conditions result in
frequent braking.
tA fluid loss in these systems may indicate a problem. Have them inspected
and repaired at once.
7-1 0

Downloaded from www.Manualslib.com manuals search engine Scheduled Maintenance Services
Parking brake and transmission P (Park) mechanism operation -
I CAUTION
When you are doing this check, your vehicle could begin to mo\
ve. I
/i You or others could be injured and property could be damaged.
Make sure there is room in front of your vehicle in case you\
begin
to roll. Be ready to apply the regular brake at once should the \
vehicle begin to move.
Park on a fairly steep hill, with the vehicle facing downhill.\
Keeping your foot
on the regular brake, set the manual parking brake.
To check the parking brake: With the engine running and the
transmission in
N (Neutral), slowly remove foot pressure from the regular
brake pedal.
Do this until the vehicle is held by the parking brake only.
To check the P (Park) mechanism’s holding ability: Apply the regular
brake and shift to
P (Park). Release the manual parking brake, then
slowly release the regular brake.
Lap and shoulder belts condition and operation -Inspect belt system,
including: webbing, buckles, latch plates, retractors, guide loop\
s and anchors.
Have a belt assembly replaced
if the webbing has been cut or otherwise
damaged.
Body Lubrication Service -Lubricate all body door hinges including the
tailgate, tailgate handle pivot points, and tailgate mounted spa\
re tire carrier
(if
equipped), lubricate the body hood, fuel door and rear compart\
ment hinges, latches, any locks and any moving seat- hardware. Lubricate the\
hood safety
lever pivot and prop rod pivot. More frequent lubrication may \
be required
when exposed to a corrosive environment.
7-1 2

Downloaded from www.Manualslib.com manuals search engine Scheduled Maintenance Services
Recommended Fluids & Lubricants
NOTE: Fluids and lubricants identified below by name, part number or
specification may be obtained from your GM Dealer.
USAGE FLUID/LUBRICANT
Engine Oil GM Goodwrench Motor Oil or equivalent for API Service SG
or SGlCE of the recommended viscositv.
Engine Coolant Mixture
of water and a good quality ethylene
glycol base
antifreeze conforming
to GM-6038-M (GM Part No. 1052103).
Hydraulic Brake Systems Delco Supreme
ll@ brake fluid (GM Part No. 1052535 or
I DOT-3).
Parking Brake Cables Chassis lubricant meeting requirements of GM-6031-M (GM
Part No. 1052497).
Power Steering System GM Power Steering Fluid (GM Part No. 10\
50017) or equivalent conforming
to GM spec 9985010.
Manual Steering Gear GM Lubricant (GM Part No. 1052182) or e\
quivalent.
Automatic Transmission DEXRONB IIE Automatic Transmission Fluid (GM Part No.
~ ~~
1051 855).
Differential:
a. Standard - Front and a. SAE-80W-90 gear lubricant (GM Part No. 1052271).\

Rear Axle
b. SAE-80W-90 gear lubricant (GM Part No. 1052271).
b. Locking
Transfer Case DexronB
IIE Automatic Transmission Fluid (GM Part No.
1051 855).
Column Shift, Propeller Shaft Chassis lubricant meeting requireme\
nts of NLGl Grade
2,
Slip Splines and Universal Category LB or GC-LB (GM Part No. 10524\
97).
Joints.
Hood Latch Assembly
a. Pivots and spring anchor a. Engine oil (GM Part No. 1050109).
b. Release Pawl b. Chassis lubricant meeting requirements of GM-6031-M
Front Wheel Bearings Wheel bearing lubricant meeting requirements\
of NLGl Grade
Constant Velocity
U I Joint Chassis lubricant meeting requirements of GM-6031-M (GM
(GM Part No. 1052497).
2, Category GC or GC-LB (GM Part No. 1051344).
Part
No. 1052497)
Automatic Transmission Shift Engine oil
Linkage, Floor Shift Linkage,
Hood and Door Hinges, Body
Door Hinge Pins, Folding Seat,
Fuel Door Hinge
(Continued next page) TO279
7-1 4

Downloaded from www.Manualslib.com manuals search engine Scheduled Maintenance Services
Maintenance Record
After each of the preceding Scheduled Maintenance Services is performed,
record the date, odometer reading, services performed (list item numbers) \
and
who performed the services in the appropriate column.
In addition, retain
copies of your receipts. It is suggested that receipts be kept with your
Owner’s Manual.
I TO260
7-1 6

Downloaded from www.Manualslib.com manuals search engine Scheduled Maintenance Services
Hood Release,
Lever Engine Oil
See Page 6-9 SW Parnn 6-8 I
1
PO466

Downloaded from www.Manualslib.com manuals search engine fNDEX
K
Keys ................................................ 2-3
L
Lights ............................................. 2-40
Dome
......................................... 2-44
Fog Lamps
................................ 2-42
Front Parking
............................ 6-36
Indicator
..................................... 2-64
Taillights
..................................... 6-37
Interior Override Switch
............ 2-45
Operation
................................... 2-31
Reading
..................................... 2-44
Turn Signal
................................ 6-36
Loading Your Vehicle
................... 6-42
Lubrication
..................................... 6.39
Accelerator Control System
..... 6-39
Body
........................................... 6-40
Front Suspension and Steering Linkage
................... 6-38
Front Wheel Bearings
(Two-Wheel Drive)
................. 6-38
Latches and Hinge
................... 6-40
Lock Cylinders
.......................... 6-41
Propeller Shaft Slip
SplinesAJniversal Joints
........ 6-40
Rear Axle
.................................. 6-23
Transfer Case
........................... 6-23
Luggage Carrier
............................ 2-49
M
Maintenance .................................... 7-2
Other Items
............................... 6-38
Periodic Inspections
.................. 7-13
Record
....................................... 7-1 6
Scheduled Maintenance
..... 7.3. 7-8
Underbody
................................. 6-58
Mirrors
........................................... 2-45
Inside
......................................... 2-45
Outside
............................ 2.46. 2-47
Vanity
......................................... 2-48
Model Reference
............................... iii
When Towing
a Trailer
............. 4-49
0
Odometer ....................................... 2-56
Trip
............................................. 2-57
Oil
.................................................... 6-9
Additives
.................................... 6-14
Disposal of Used
...................... 6-15
Pressure Gage
.......................... 2-62
To Check
................................... 6-10
What Kind
to Use ..................... 6-12
When
to Change ...................... 6-14
Owner Checks and Services
....... 7-11
P
Off -Road Recovery ....................... 4-20
Parking Brake
.......................................... 2-20
Downhill
..................................... 4-38
On Hills
............................ 4-37, 4-49
Uphill
.......................................... 4-38
Passing Other Vehicles
...... 4-21, 4-48
Pavement Markings
........................ 4-7
Payload Capacity
.......................... 6-43
Periodic Maintenance Inspections7-13
Power Mirrors
........................................ 2-47
Other Options
............................ 6-38
Seat
.............................................. 1-2
Visor Vanity
............................... 2-48
Windows
.................................... 2-26
Fluid
........................................... 6-30
Product Service Publications
......... 8-6
R
Radiator Pressure Cap ................ 6-29
Radio (See “Audio Systems”) Over Things That Burn
............ 2-23
Power Steering
............................. 4-18
Reading Lights
.............................. 2-44
Rear Defogger
................................ 3-8
Rear Hatch/Split-Panel Doors
........ 2-8
Rear WiperNVasher
...................... 2-34
Recommended Fluids/Lubricants
. 7-14
Reporting Safety Defects
............... 8-4
9-4

Downloaded from www.Manualslib.com manuals search engine Road Signs ..................................... 4-2
Roadside Assistance ...................... 8.5
Rocking Your Vehicle ................... 5-32
Roof Console ................................ 2-51
S
Safety Belts .................................. 1-12
Care Of ..................................... 6-55
Checking Restraint Systems .... 1-43
Driver Position ........................... 1-1 8
Extender .................................... 1-42
Lap-Shoulder Belt ..................... 1-19
Larger Children ......................... 1-40
Passenger Positions ....... 1-26, 1-30
Proper Wear .............................. 1-1 8
Questions and Answers ........... 1-16
Reminder Light .......................... 1-1 7
Replacing After a Crash .......... 1-43
Shoulder Belt Height Adjuster .... 1-21
Smaller Children and Babies ... 1-32
Use During Pregnancy ............. 1-25
Why They Work ........................ 1-13
Safety Chains ............................... 4-46
Safety Warnings ............................. 0-2
Scheduled Maintenance
Services
............................... 7-3, 7-8
Seats ............................................... 1-2
Bench ........................................... 1-5
Controls ....................................... 1-2
Head Restraints ........................ 1-1 1
Rear ............................................. 1-5
Power Driver’s ............................. 1-3
Reclining Bucket ......................... 1-3
Removable ................................... 1-8
Seatback Latches ....................... 1-7
Service ............................................ 6-3
Do-It-Yourself ............................... 6-3
Parts Identification Label .......... 6-62
Publications ......................... 8-6, 8-8
Replacement ParVFilter Recommendations
................. 6-70
Service Station Checks ................ 7-1 7
Adults ......................................... 1-18
Shifting IntolOut Of Park ... 2-21, 2-23
Single Belt Accessory Drive ........ 6-38
Spare Tire ..................................... 5-19
Specification Charts ...................... 6-64
Speedometer ................................. 2-56
Springs, Fiberglass ....................... 6-58
Starting Your Engine .................... 2-14
Steering
In Emergencies
......................... 4-19
Tips ............................................ 4-18
Storage Compartment .................. 2-51
Storing the JacWSpare Tire ......... 5-30
Sun Visors .................................... 2-48
T
Theft .............................................. 2-12
Thermostat .................................... 6-29
Tilt Wheel ...................................... 2-28
Tires ............................................... 6-44
Chains ........................................ 6-51
Changing A Flat ..A-16, 5.17, 5-21
Compact Spare ......................... 5-31
Inspection and Rotation ............ 6-47
Loading ...................................... 6-42
New ............................................ 6-48
Pressure ..................................... 6-45
Uniform Tire Quality Grading ... 6-49
Top Strap ...................................... 1-34
Towing Your Vehicle ....................... 5-7
Towing a Trailer ............................ 4-43
Backing Up ................................ 4-48
Following Distance .................... 4-48
Making Turns ............................. 4-48
Turn Signals .............................. 4-48
Traffic Lights ................................... 4-6
Trailer
Brakes
........................................ 4-46
Wiring Harness .......................... 2-67
Trailering Package ........................ 6-44
Transfer Case ............................... 6-23
Transmission, Automatic ............... 2-17
Add Fluid ................................... 6-22
Check Fluid ............................... 6-20
Torque Lock ............................... 4-39
9-5