maintenance schedule CHEVROLET BLAZER 1993 User Guide

Service & Appearance Care
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K2694
What to Add:
Refer to the Maintenance Schedule to determine what kind of fluid to use.
See “Recommended Fluids and Lubricants” in the Index.
NOTICE I
When adding power steering fluid or making a complete fluid change,
always use the proper fluid. Failure
to use the proper fluid can cause
leaks and damage hoses
and seals.
6-30

Service & Appearance Care
Brake Master Cylinder
Your brake master cylinder is here. It is filled with DOT-3 brake fluid.
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K2470
There are only two reasons why the brake fluid level in your master cylinder
might go down. The first is that the brake fluid goes down to an acceptable
level during normal brake lining wear. When new linings are put in, the fluid
level goes back up. The other reason is that fluid is leaking out of the brake
system.
If it is, you should have your brake system fixed, since a leak means
that sooner or later your brakes won’t work well, or won’\
t work at all.
So, it
isn’t a good idea to “top
off your brake fluid. Adding brake fluid won’t correct
a leak.
If you add fluid when your linings are worn, then you’ll have \
too
much fluid when you get new brake linings. You should add (or remove)
brake fluid, as necessary only when work is done on the brake hydraulic
system.
.
4 If you---have too much brake fluid, it can spill on the engine. The fluid
will burnhhe engine is hot enough. You or others could be burned,
and your vehicle could be damaged. Add brake fluid only when \
work
is done on the brake hydraulic system.
Refer to the Maintenance Schedule to determine when to check your brake
fluid. See “Periodic Maintenance” in the Index,
To Check Brake Fluid:
You can check the brake fluid without taking off the cap. Just look at the
windows on the brake fluid reservoir. The fluid levels should \
be above the
MIN
mark. If they aren’t, have your brake system checked to see if there is a leak.
6-32

Service & Appearance Care
Front Suspension and Steering Linkage
Your 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
Your vehicle has front wheel bearings that must be cleaned and repa\
cked.
Your maintenance schedule will
tell you how often this must be done.
Front Shock Absorbers
The front shock absorbers of your vehicle do many things. They help the
vehicle ride smoothly and also control the travel of the suspension system.
When the shock absorbers are serviced, any replacement shock ab\
sorbers must be the same as the original equipment shock absorbers in \
both
extended length and strength.
Wheel Nut Torque
For vehicles with dual wheels, when the vehicle, wheel or fast\
eners are new,
have the torque set at the first
100, 1,000 and 6,000 miles (160, 1600 and
9600 km). Use the torque specified in the appropriate Specification \
Chart later
in this section.
Single Belt Accessory Drive
If your new vehicle uses a serpentine belt, it is lighter, and more durable
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
replacement belt. Your dealership or parts supplier can help you with this.
The Accessory Drive Belt Routing label on your vehicle will sh\
ow you how to route the belt your vehicle uses.
6-34

Windshield Wiper Blade lnserfs
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PO232
To replace the windshield wiper blade insert, lift the wiper arm and rotate the
blade until
it is facing away from the windshield. Unlatch the end of the insert
from the holding clips. Remove the insert and slide a new one in place,
Make sure the blade
is secured in the clips.
Air Conditioning
Every now and then have your dealership check your air conditioning system
to be sure it has not lost any cooling ability,
If you think the system is not
working properly, have your dealership check
it out as soon as possible.
The air conditioning will not work when the temperature is below
40°F (4°C).
Fluid Leak Check
After the vehicle has been parked for a while, inspect the su\
rface under the
vehicle for water, oil, fuel or other fluids. Water dripping from the air
conditioning system after
it has been used is normal. If you notice fuel leaks
or fumes, the causes should be found and corrected at once.
Lubrication
Accelerator Control System
Your maintenance schedule will tell you how often the accelerator linkage
pivot points must be lubricated. See “Recommended Fluids and Lubric\
ants”
in
the Index for the proper lubricant to use.
Accelerator cables and cruise control cables should not be lubr\
icated. Any
cables that are worn or are hard to pull
should be replaced.
6-35

Service & Appearance Care
Hood Laiches and Hood Hinge
Your maintenance schedule will tell you how often to lubricate the hood latch
and hood hinge assembly. See “Recommended Fluids and Lubrican\
ts” in the
Index for the proper lubricant to use.
Propeller Shaft Slip Splines
See your maintenance schedule to find out how often the slip \
splines must
be lubricated, See “Recommended Fluids and Lubricants” in the Index for the
proper lubricant to use.
Constant Velocity Joints
See your maintenance schedule to find out how often the consta\
nt velocity
joints must be lubricated. See “Recommended Fluids and Lubricants”\

in the
Index for the proper lubricant to use.
Body
Normal use of your vehicle will cause metal to metal wear at some points on
the cab and body
if they are not lubricated.
For exposed surfaces, such as door checks, door lock bolts, lo\
ck striker
plates, dovetail bumper wedges, etc., a thin film of engine oil should be
applied.
The seat adjusters and seat track should be lubricated with ch\
assis grease, Door weather strips and rubber hood bumpers should be lightly \
coated with a
rubber lubricant.
Never use too much of any lubricant and be sure to wipe up any extra
lubricant when you are finished.
Your maintenance schedule will tell you how often to lubricate these items.
See “Recommended Fluids and Lubricants” in the Index
for the proper
lubricant to use.
Lock Cylinders
To be sure your locks operate properly, they must be lubricated, Your
vehicle’s maintenance schedule will tell you how often
to lubricate them. See
“Recommended Fluids and Lubricants”
in the Index for the proper lubricant to
use.
You should not use penetrating oils because they could wash out the factory
installed lubricant and cause the lock to bind. De-icers which contain alcohol
could also wash away the lubricant,
so be sure to lubricate the lock after
using a de-icer
of this type.
6-36

Tailgate Handle
The tailgate handle pivot points on your vehicle should be lubricated to keep
it working smoothly.
Your maintenance schedule will tell you how often to lubricate the handle.
See “Recommended Fluids and Lubricants”
in the Index for the proper
lubricant
to use.
Efectricaf System
Battery
Every new GM vehicle has
add water
to one of these,
a Delco Freedom@ battery.
the original battery’s label.
Vehicle Storage
If you’re not going to drive 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
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.
--
CAUTION
1 Batteries have acid that can burn you and gas that can explode. You I
, - , can be badly hurt if you aren’t careful. See “Jump Starting” in the
Index
for tips on working around a battery without getting hurt.
on'^ your dealer to learn how to prepare your vehicle for longer periods.
Bulb Rep/acement
Before you replace any bulbs, be sure that all the lights are off and the
engine isn’t running.
6-37

Service & Appearance Care
Tire lnspecfion and Rotation
To make your tires last longer, have them inspected and rotated at the
mileages recommended in the Maintenance Schedule. See “Scheduled
Maintenance Services” in the Index.
FRT FRT
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K2655
Use this rotation pattern,
If your vehicle has front tires with different load ratings or tr\
ead designs (such
as all season vs. on/off road) than the rear tires, don’t rotate \
your tires front
to rear,
After the tires have been rotated, adjust the front and rear \
inflation pressure
as shown on the CertificationRire label. Make certain that all \
wheel nuts are
properly tightened.
See “Wheel Nut Torque” in the Index.
1 CAUTION
Rust or dirt on a wheel, or on the parts to which it is fastened, can
make the wheel nuts become loose after a time. The wheel could
come
off and cause an accident. When you change a wheel, remove
any rust or dirt from places where the wheel attaches
to the vehicle.
In an emergency, you can use a cloth or paper towel to
do this; but
be sure to use a scraper or wire brush later, if you need to, to get
I
I all the rust or dirt off. (See ‘Changing a Flat Tire” in the Index.) I
&52

Scheduled Mainfenance Services
Section
This section covers the maintenance required for your General Motors \
vehicle.
Your vehicle needs these services
to retain it’s safety, dependability, and
emission control performance.
A Word About Maintenance ........................................................................\
......... 7-3
Your Vehicle and the Environment
...................................................................... 7-3
Recording Maintenance Services
........................................................................\
. 7-3
Scheduled Maintenance Services
........................................................................\
7-4
Selecting The Proper Maintenance Services ............................................... 7-4
Gasoline Engines with Light Duty Emissions- Maintenance Schedule
I ........................................................................\
.... 7-6
Gasoline Engines with Light Duty Emissions- Maintenance Schedule
II ........................................................................\
... 7-8
Gasoline Engines with Heavy Duty Emissions- Maintenance Schedule
I ........................................................................\
.. 7-1 C
Gasoline Engines with Heavy Duty Emissions- Maintenance Schedule
II ........................................................................\
. 7-1 2
6.2L and 6.5L Diesel Engines-
Maintenance Schedule
I ........................................................................\
.. 7-1 4
6.2L and 6.5L Diesel Engines- Maintenance Schedule
II ........................................................................\
. 7-1 6
7-1

Scheduled Mainfenance Services
Explanation of Scheduled Maintenance Services ...................................... 7-18
Owner Checks and Services
........................................................................\
...... 7-22
Recommended Fluids
& Lubricants ................................................................... 7-25
Maintenance Record
........................................................................\
................... 7-27
Service Station Checks
........................................................................\
............... 7-28
7-2

A Word About Maintenance
We at General Motors want to help you keep your vehicle in good working
condition. But we don’t know exactly how you’ll drive it. You may drive very
short distances only a few times a week. Or you may drive long distances
all
the time in very hot, dusty weather. You may use your vehicle in making
deliveries. Or you may drive it to work, to do errands, or in many other ways.
Because of all the different ways people use their GM vehicles, maintenance
needs vary. You may even need more frequent checks and replacements than
you will find in the schedules in this section. So please rea\
d this section and
note how you drive. If you have any questions on how to keep your vehicle
in good condition, see your
GM dealer, the place many GM owners choose
to have their maintenance work done. Your dealer can be relied upon to use
proper parts and practices.
Your Vehicle and the Environment
Proper vehicle maintenance not only helps keep your vehicle in \
good working
condition, but also helps the environment.
All recommended maintenance
procedures are important. Improper vehicle maintenance or the re\
moval of
important components can significantly affect the quality
of the air we breathe.
Improper fluid levels or even the wrong
tire inflation can increase the level of
emissions from your vehicle.
To help protect our environment, and to help
keep your vehicle in good condition, please maintain your vehicle properly.
Recording Maintenance Services
The Maintenance Record near the end of this section provides a place for
you to record the maintenance performed on your vehicle. Whenever any
maintenance is performed, be sure to write
it down in the Maintenance
Record. This will help you determine when your next maintenance\
should be
done, In addition,
it is a good idea to keep your maintenance receipts. They
may be needed to qualify your vehicle for warranty repairs.
rn I CAUTION
I A Performing maintenance work on a vehicle can be dangerous. In
~
If you are skilled enough to do some work on your vehicle, you will probably
want to get the service information
GM publishes. For information on how to
obtain various service publications for your vehicle, see “Se\
rvice Publications” in
the Index. You will find a list of publications and an order form in the back of
the book.
L trying to do some jobs, you can be seriously injured. Do your own
maintenance
work only if you have the required know-how and the
proper tools and equipment for the job. If you have any doubt, have
l a qualified technician do the work.