1993 CHEVROLET ASTRO PASSENGER steering

Downloaded from www.Manualslib.com manuals search engine PO667
NOTICE
When adding power steering fluid or making complete fluid change,
use the proper fluid. Failure
to use the proper fl I can cause
1' leaks and damage hoses and seals.
Windshield Washer Fluid
1
1
1
/
PO406
To Add:
Open the cap labeled WINDSHIELD WASHER FLUID ONLY. Add washer fluid
until the bottle is full.
6-3 1

Downloaded from www.Manualslib.com manuals search engine Service & Appearance Care
braking system-for example, when your brake linings 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 brake 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.
Hydro-Boost Brake System (Hydraulic Pump)
The power steering pump is also used as the Hydro-Boost pump. \
Refer to
“Power Steering Fluid” in this section when. checking the fluid level or adding
fluid.
Fluid Leak Check
After the vehicle has been parked for awhile, inspect the surf\
ace beneath the
vehicle for water, oil, fuel or other fluids. Water dripping f\
rom the air
conditioning system is normal. If you notice fuel leaks or fumes, the causes
should be found and corrected at once.
Battery
Every new GM vehicle has
add water
to one of these,
a Delco Freedom@ battery.
the original battery’s label. a Delco Freedom@ battery. You never have
to
When it’s time for a new battery, we recommend
Get one that has the catalog number shown on
Vehicle Storage
If you’re not going to drive your vehicle for 25 days or more, take off the
black, negative
(-) cable from the battery. This will help keep your battery
from running down.
I CAUTION
For more informarlon on vehicle storage, contact your dealer’\
s service
department, or write to:
Adistra Corporation 171 Hamilton Street Plymouth,
MI 48170
General Motors
of Canada, Limited
Customer Services Department
Oshawa, Ontario L1 J5Z6
In
Canada, write
to:
6-34

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PO400
3. Press the tab and turn the socket to the left to remove the socket from
the bezel.
If the socket does not have a tab, turn the socket to the left to remove
the socket from the bezel.
4. Pull out the bulb and replace it with the new bulb.
5. Reverse steps 1-3 to reinstall the taillight.
Other Maintenance Items
Front Suspension and Steering Linkage
The Maintenance Schedule will tell you how often to lubricate the fittings. See
“Recommended Fluids and Lubricants” in the Index for the proper lubricant to
use.
Front Wheel Bearings (Two-Wheel Drive)
If your vehicle is two-wheel drive, the front wheel bearings must \
be cleaned
and repacked at certain intervals. The Maintenance Schedule will tel\
l you how
often this must be done.
Single Belt Accessory Drive
Your new vehicle uses a serpentine belt that is lighter, more durable and fuel
efficient than systems with several belts.
The belt runs over
or around the pulleys on the engine. A tensioner is used
to keep the belt tight at all times. The tensioner also makes replacing the
belt easier.
If you need to replace the belt, be sure to get the correct
6-38

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 Owner Checks and Services
Listed below are owner checks and services which would be made at the
time period specified to help ensure proper safety, emission performance, 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 CertificationRire label or in
Section
6. See “Inflation-Tire Pressure” in the Index.
At Least Once a Year
Key lock cylinder lubrication -Lubricate key lock cylinders with one of the
lubricants recommended in this section.
Transmission neutral start switch operation
I A When you are doing this check, the vehicle could move suddenly\
. If I
it does, you or others could be injured. Follow the steps below. I L
1. Before you start, be sure you have enough room around the vehicle.
2. Firmly apply both the manual parking brake and the regular brake. 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. Try to start the engine in each gear. The starter should work only in P
Steering column lock operation -While parked, try to turn the key to Lock
in each gear shift position. The key should turn to Lock only when the gear
shift is in
P (Park). The key should come out only in Lock.
(Park) or N (Neutral).
7-1 1

Downloaded from www.Manualslib.com manuals search engine Periodic Maintenance Inspections
Listed below are inspections and services which should be performed at least
twice a year (for instance, each spring or fall). You should let your
GM
dealer’s service department or other qualified service center \
do these jobs.
Make sure any necessary repairs are completed at once.
Steering and Suspension lnspectiont -Inspect front and rear suspension
and steering system for damaged, loose or missing parts, signs \
of wear or
lack of lubrication. Inspect power steering lines and hoses for proper \
hook-up,
binding, leaks, cracks, chafing, etc. (On vehicles equipped wit\
h manual
steering gear, check for seal leakage.) Lubricate the steering linkage.
Accelerator Control System -Lubricate all pivot points with engine oil,
except the
TBI throttle shaft. Do not lubricate the cam pulley. Remove all
external deposits from pulley.
Do not oil any accelerator or cruise control
cables. Replace any cables that have high effort or excessive wear.
Exhaust System Inspection -Inspect the complete system including the
three-way catalytic converter. Inspect the body near 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 seep into the passenger
compartments.
Drive Axle Service -Check readfront axle fluid level and add as needed.
Check constant velocity joints and axle seals for leaking.
Transfer Case (all-wheel drive) lnspectiont -Every 12 months or at oil
change intervals, check front axle and transfer case and add l\
ubricant when
necessary. Oil the control lever pivot point (except
L Van) and all exposed
control linkage. Check vent hose at transfer case for kinks an\
d proper installation.
tA fluid loss in these systems may indicate a problem. Have them inspected
and repaired at once.
7-1 3

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 ..
.
E
Engine Block Heater
..................... 2.16. 3-9
Coolant
............................ 5.11. 6-26
Coolant Temperature Gage
...... 2-60
Cover
......................................... 6-1 5
Exhaust ............................ 2.24. 6-41
Fan Noise
.................................. 5-1 6
Identification
..................... 6.60. 6-64
Oil (See “Oil”) Overheating
................................. 5-8
Running While Parked
... 2.22. 2-25
Equipment. Add-on
...................... 6-44
Exhaust System
............................ 6-41
F
Finish Care
........................................... 6-56
Damage
..................................... 6-57
Automatic Transmission
............ 6-20
Brake
......................................... 6-32
Capacities
.................................. 6-64
Coolant
............................ 5.11. 6-26
Leak Check
............................... 6-34
Power Steering
......................... 6-30
Transfer Case
........................... 6-23
Windshield Washer
................... 6-31
Fog Lamps
.................................... 2-42
Four-wheel Antilock
..................... 4-1 5
Front Seats ..................................... 1-2
Fuel
................................................. 6-4
Gage
.......................................... 2-63
In Foreign Countries
................... 6-6
Regulator
................................... 2-1 5
Tank Capacity ........................... 6-65
Fuse Block
.................................... 6-63
Fuses and Circuit Breakers
......... 6-68
Fluid
Filling Your Tank
......................... 6-6
G
Gages
Fuel ............................................ 2-63 ....
Voltmeter .................................... 2-64
Gasolines for Cleaner Air
.............. 6-5
H
Hatch Release Switch .................. 2-27
Hazard Warning Flashers
.............. 5-2
Head Restraints
............................ 1-11
Headlights
...................................... 6-35
High Beams
..................... 2.66. 4-24
High-Low Beam
......................... 2-31
Reminder Light
.......................... 2-44
Heating System
.............................. 3-5
Fan Lever
.................................... 3-5
Rear
............................................. 3-7
Temperature Lever
...................... 3-5
Highway Hypnosis
........................ 4-34
Hitches Hood Block Heater.,
............................ 2-16
Function Lever
............................ 3-5
4-46
...........................................
Latches and Hinge ................... 6-40
Release
........................................ 6-8
Horn
............................................... 2-28
Hydroplaning
................................. 4-27
I
If You’re Stuck in Sand. Mud.
Ice or Snow
.............................. 5-32
Ignition Switch
............................... 2-13
Inflation-Tire Pressure
................... 6-45
Instrument Cluster
........................ 2-52
Standard
.................................... 2-55
Digital
......................................... 2-52
J
Jack Storage ................................. 5-18
Jump Starting
.................................. 5-3
9-3