1993 GMC SIERRA maintenance schedule

Service & Appearance Care
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.
Tailgate Handle
The tailgate handle pivot points on your vehicle should be lub\
ricated 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.
Electrical System
Battery
Every new GM vehicle has a Delco Freedom@ battery. You never have to
add water to one of these. When it’s time for a new battery, we recomme\
nd
a Delco Freedom@ battery. Get one that has the catalog number \
shown on
the original battery’s label.
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 - Batteries have acid that can burn you and gas that can explod\
e. You I
1 can be badly hurt if you aren’t careful. See “Jump Starting” in the
Index for tips on working around a battery without getting hur\
t.
Contact your dealer to learn how to prepare your vehicle for longer periods.
Bulb Replacement
Before you replace any bulbs, be sure that all the lights are off and the
engine isn’t running.
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Service & Appearance Cam
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.
Q
-
-
K2655
Use this rotation pattern.
If your vehicle has front tires with different load ratings or tread designs (such
as all season
vs. onloff 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.
A 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 wh.eel 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
3 be sure to use a scraper or wire brush later, if you need- to, to get
-T all the rust or dirf off. See “Changing a Flat Tire” in the Index.
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Scheduled Maintenance Services
’
-1 I
This section covers the maintenance required for your General M\
otors vehicle.
Your vehicle needs these services to retain it’s safety, dependabi\
lity, 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 Your Vehicle’s 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 0
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
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Scheduled Maintenance 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
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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 read 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 removal of
important components can significantly affect the quality of the air we breathe.
Improper fluid levels or even the wrong tire inflation can inc\
rease 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.
CAUTION
+ CAUTION: Performing maintenance work on a vehicle can be
dangerous. In 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
a aualified technician do the work.
If you are skilled enough to do some work on your vehicle, you will probably
want to get the service information GM publishes. You will
find a list of
publications and how to get them in the back of Section
8, “Customer
Assistance Information.” See “Service Publications’’ in the Index.
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Scheduled Maintenance Services
Scheduled Maintenance Services
This part tells you the maintenance services that you should h\
ave done and
the times you should schedule them. Your GM dealer knows your vehicle best
and wants you
to be happy with it. If you go to your dealer for your service
needs, you’ll know that GM-trained and supported service peop\
le will perform
the work using genuine GM parts.
These schedules are for vehicles that:
carry passengers and cargo within the recommended limits. You will find
these limits on your vehicle’s Certification Label. See “L\
oading Your
Vehicle” in the Index.
are driven on regular road surfaces, and within legal driving \
limits.
are driven off-road in the recommended manner. See the Index U\
nder
use the recommended fuel. See “Fuel” in the Index.
“Off Road Driving With Your Four Wheel Drive Vehicle.”
selecting The Proper Maintenance Services
To find the proper maintenance schedule for your vehicle, you must\
know two
things. What engine your vehicle has, and how you use your ve\
hicle. Your
engine type will tell you which chart to use, and your drivin\
g conditions will
tell you which schedule to use. The charts are found later in\
this section.
Selecting the Proper Maintenance Chart
Your engine type (Gasoline or Diesel) and its emissions classificat\
ion (Light
Duty 3r Heavy Duty Emissions) will tell you which maintenance \
chart
to use.
Find your Vehicle Identification Number (VIN), and look at th\
e eighth character
to see what your engine code is. Then use the following Engine E\
missions
Classifications table
to find your emissions classification.
Your VIN is on the plate on the top left corner of your instrument panel,
the Certification Label and on the Service Parts Identification \
Label. See “Vehicle Identification Number” in the Index.
If your engine has more than one emissions classification, look at\
your
Certification Label to see what your Gross Vehicle Weight Ratin\
g
(GVWR)
is. See “Loading Your Vehicle” in the Index.
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VIN Code
Z
H
K
C
J
F
N
~~~
Engine Description
with 8500 GVWR and below 7~ ! .-
with 8501 GWVR and' above
4.3L V6/TBI
5.0L V8/TBI
5.7L V8/TBI
with 8500 GVWR and belowk=
*&$
with 8501 GVWR and abov-sd
6.2L V8IDiesel
L.
6.2L V8/Diesel >c<
6.5L V8/Diesel g$ c
7.4L V8/TBI I
Except 454 SS Model 'g
with 454 SS Model ;
J= tb-
-1
L..
HD LD
LD
HD
LD
HD
HD
HD LD
TO268
NOTE: TBI Is a throttle body injection system.
Selecting the Proper Maintenance Schedule
Here ,is how to tell which schedule to follow once you find the proper
maintenance chart to use.
MAINTENANCE SCHEDULE I
Is any one of these true for your vehicle?
Most trips are less than 4 miles (6 kilometers).
Most trips are less than 1.0 miles (16 kilometers), and the outside
temperatures are below freezing.
The engine is at low speed most of the time (as in door-to-door delivery,
You operate in dusty areas or off-road frequently.
You tow a trailer
stop-and-go traffic,
or commercial use).
n;r- .I '.
---. - .
-. . r- IA m. : .. 1: . >.' +--,-P~l*~ -L.
If any one (or more) of these is true for your driving, follow Schedule 1.
Schedule I is shown by a plus sign (t) on the chart. &
MAINTENANCE SCHEDULE II
Follow Schedule II ONLY if none of the above conditions are true. Schedule- -
II is shown by a dot (.) on the chart. I
-
L .. -
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Scheduled Maintenance Services
GASOLINE ENGINES WITH LIGHT DUTY EMISSIONS-
*An Emission Control Service
tTo determine the emissions classification of your engine refer to “Selecting the
**See “Explanation
of Scheduled Maintenance Services” in this section.
Proper Maintenance Chart” in this section.
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