service GMC SIERRA 1994 Workshop Manual

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
the 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
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 warranty repairs.
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Tf 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 “Service
Publications”
in the Index. You will find a list of publications and an order
form
in the back of the book.
Scheduled Maintenance Services
This part tells you the maintenance services that you should have 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 people
will perform the work using genuine
GM parts.
These schedules are for vehicles that:
0 carry passengers and cargo within the recommended limits. You will
find these limits on your vehicle’s Certification Label. See “Loading
Your Vehicle’’ in the Index.
are driven on regular road surfaces, and within legal driving limits, as
described in Section 4 “Your Driving and the Road.”
0 are driven off-road in the recommended manner. See “Off Road
Driving With Your Four-wheel Drive Vehicle”
in the Index.
0 use the recommended fuel. See “Fuel” in the Index.
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 vehicle.
Your engine type will tell
you which chart to use, and your driving
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 classification (Light
Duty or Heavy Duty Emissions) will
tell you which maintenance chart to
use. Find your Vehicle Identification Number (VIN), and look at the eighth
character
to see what your engine code is. Then use the following Engine
Emissions Classifications tables
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 Tndex.
If your engine has more than one emissions classification, look at your
Certification Label to see what your Gross Vehicle Weight Rating
(GVWR)
is. See “Loading Your Vehicle” in the Index.
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GASOLINE ENGINES WITH LIGHT DUTY EMISSIONS
- MAINTENANCE SCHEDULE ft
* An Emission Control Service
** See “Explanation of Scheduled Maintenance Services” in the Index
$ The California Air Resources Board has determined that the fail\
ure to perform this
maintenance item will not nullify the emission warranty or limi\
t recall liability prior to the
completion of vehicle useful life. General Motors, however, urge\
s that all recommended maintenance services be performed at the indicated intervals and the maintenance be
recorded.
t To determine the emissions classification of your engine, refer to “Selecting the Proper
Maintenance Chart” in this section.
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GASOLINE ENGINES WITH LIGHT DUTY EMISSIONS
- MAINTENANCE SCHEDULE 13. (continued)
If your driving conditions do NOT meet those specified in “Scheduled Maintenance Services”
in this section, use Maintenance Schedule
II (e).
-HE SERVICES SHOWN ON THIS CHART UP TO 60,000 MILES (100 000 km) ARE TO BE
)ONE AFTER 60,000 MILES AT THE SAME INTERVALS.
’0402R0902
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GASOLINE ENGINES WITH LIGHT DUTY EMISSIONS
- MAINTENANCE SCHEDULE 113.
* An Emission Control Service
** See “Explanation of Scheduled Maintenance Services” in the Index.
$ The California Air Resources Board has determined that the fail\
ure to perform this
maintenance item will
not nullify the emission warranty or limit recall liability prior to the
completion of vehicle useful life. General Motors, however, urges that all re\
commended
maintenance services be performed at the indicated intervals and\
the maintenance be
recorded.
t To determine the emissions classification of your engine, refer to “Selecting the Proper
Maintenance Chart” in this section.
T0403/T0903
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GASOLINE ENGINES WITH LIGHT DUTY EMISSIONS
- MAINTENANCE SCHEDULE I@ (continued)
If your driving conditions do NOT meet those specified in “Scheduled Maintenance Services”
in this section,
use Maintenance Schedule II (e),
I I I I I
THE SERVICES SHOWN ON THIS CHART UP TO 60,000 MILES (100 000 km) ARE TO BE
DONE AFTER 60,000 MILES AT THE SAME INTERVALS.
T0403alT0903a
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GA!
-/I
Item
No.
1
2
3
4
5
6
7
9
10
11
12
13
14
15
16
17
18
19
20
21 23
24
25
*I ** <
AI
t1
F
TO404
;OLINE ENGINES WITH HEAVY DUTY EMISSIONS
IAINTENANCE SCHEDULE
If your driving conditions meet those specified in “Scheduled Maintenance Services’’
in this section (or see Index), use Maintenance Schedule
I (t).
n Emission Control Service
ee “Explanation
of Scheduled Maintenance Services” in the Index.
Noise Emission Control Service
pplicable only
to vehicles sold in the United States
2 determine the emissions classification of your engine, refer to “Selecting the Proper
laintenance Chart” in this section.
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THE SERVICES SHOWN ON THIS CHART UP TO 60,000 MILES (100 000 km) ARE TO BE
DONE AFTER
60,000 MILES AT THE SAME INTERVALS.
TO405
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GASOLINE ENGINES WITH HEAVY DUTY EMISSIONS
- MAINTENANCE SCHEDULE Iff
* An Emission Control Service
** See “Explanation of Scheduled Maintenance Services” in the Index.
A A Noise Emission Control Service
V Applicable only to vehicles sold in the United States
t To determine the emissions classification of your engine, refer to “Selecting the Proper
Maintenance Chart” in this section.
TO406
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GASOLINE ENGINES WITH HEAVY DUTY EMISSIONS
- MAINTENANCE SCHEDULE lh- (continued)
THE SERVICES SHOWN ON THIS CHART UP TO 60,000 MILES (1 00 000 km) ARE TO BE
DONE AFTER 60,000 MILES AT THE SAME INTERVALS.
TO407
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