service CHEVROLET BLAZER 1994 2.G Service Manual

Downloaded from www.Manualslib.com manuals search engine When lt’s Time for New Tires
One way to tell when
it’s time for new tires
is to check the
treadwear indicators,
which will appear
when your tires have
only
2/32 inch
(1.6 mm) or less of
tread remaining.
You need a new tire if
0 You can see the indicators at three or more places around the tire.
You can see cord or fabric showing through the tire’s rubber.
The tread or sidewall is cracked, cut or snagged deep enough to show
cord or fabric.
0 The tire has a bump, bulge or split.
The tire has a puncture, cut, or other damage that can’t be repaired well
because
of the size or location of the damage.
Buying New Tires
To find out what kind and size of tires you need, look at the
CertificatiodTire label.
The tires installed
on your vehicle when it was new had a Tire Performance
Criteria Specification (TPC Spec) number
on each tire’s sidewall. When you
get new tires, get
ones with that same TPC Spec number. That way, your
vehicle will continue to have tires that are designed to give proper
endurance, handling, speed rating, traction, ride and other things during
normal service
on your vehicle. If your tires have an all-season tread
design, the
TPC number will be followed by a “MS” (for mud and snow).
6-45

Downloaded from www.Manualslib.com manuals search engine If you ever replace your tires with those not having a TPC Spec number,
make sure they are the same size, load range, speed rating and construction
type (bias, bias-belted or radial) as your original tires.
Uniform Tire Quality Grading
The following information relates to the system developed by the United
States National Highway Traffic Safety Administration which grades tires
by treadwear, traction and temperature performance. (This applies
only to
vehicles sold in the United States.)
Treadwear
The treadwear grade is a comparative rating based on the wear rate of the
tire when tested under controlled conditions on a specified government test
course. For example, a tire graded
150 would wear one and a half (1 1/2)
times as well on the government course as a tire graded 100. The relative
performance of tires depends upon the actual conditions of their use,
however, and may depart significantly from
the norm due to variations in
driving habits, service practices and differences
in road characteristics and
climate.
Traction - A, B, C
The traction grades, from highest to lowest are: A, B, and C. They represent
the tire’s ability to stop on wet pavement as measured under controlled
conditions on specified government test surfaces
of asphalt and concrete. A
tire marked C may have poor traction performance.
Warning: The traction grade assigned to this tire is based
on braking
(straight-ahead) traction tests and does
not include cornering (turning)
traction.
6-46

Downloaded from www.Manualslib.com manuals search engine Finish Damage
Any stone chips, fractures or deep scratches in the finish should be repaired
right away. Bare metal will corrode quickly and may develop into a major
repair expense.
Minor chips and scratches can be repaired with touch-up materials available
from your dealer or other service outlets. Larger areas
of finish damage can
be corrected in your dealer’s body and paint shop.
Underbody Maintenance
Chemicals used for ice and snow removal and dust control can collect on
the underbody. If these are not removed, accelerated corrosion (rust) can
occur
on the underbody parts such as fuel lines, frame, floor pan, and
exhaust system
even though they have corrosion protection.
At least every spring,
flush these materials from the underbody with plain
water. Clean any areas where mud and other debris can collect. Dirt packed
in closed areas of the frame should be loosened before being flushed. Your
dealer or an underbody vehicle washing system can do this for you.
Chemical Paint Spotting
Some weather and atmospheric conditions can create a chemical fallout.
Airborne pollutants can fall upon and attack painted surfaces
on your
vehicle. This damage can take two forms: blotchy, ringlet-shaped
discolorations, and small irregular dark spots etched into the paint surface.
Although
no defect in the paint job causes this, GM will repair, at no charge
to the owner, the surfaces of new vehicles damaged by this fallout condition
within 12 months or 12,000 miles (20
000 km) of purchase, whichever
comes first.
6-56

Downloaded from www.Manualslib.com manuals search engine Vehicle Identification Number (VIN)
This is the legal identifier for your vehicle. It appears on a plate in the front
corner of the instrument panel, on the driver’s side.
You can see it if you
look through the windshield from outside your vehicle. The VIN also
appears on the Vehicle Certification and Service Parts labels and the
certificates of title and registration.
6-58

Downloaded from www.Manualslib.com manuals search engine Service Parts Identification Label
You’ll find this label on the inside of the glove box.
WHEELBASE
I
1 Service Parts Identification DO NOT REMOVE ? I VEHICLE < IDENTIFICATION
NUMBER
I I
1 PAINTTECHNOLOGY ORDER NUMBER
I i 0000000000000oO00 ’ OOOOO 00000 ARL AD2 A65 B6Y B9A B9K C60 D1B D36 E52 E6E E92 FLT GU1 JM7
K19 K64 LC3 MX1
M31 NA5 NB1 QMXVK3 VC2 VYI VY4 V73 Y19 ZJ7
6BJ 62L 62U 67D 671 679 7BJ 8HJ
9HJ
MODEL DESIGNATION
OPTlON CONTENT
EXTERIORCOLORS
It’s very helpful if you ever need to order parts. On this label is:
0 your VIN,
the model designation,
0 paint information, and
0 a list of all production options and special equipment.
Be sure that this label is
not removed from the vehicle.
Add-on Lxtrical Equipment
NOTICE:
-
Don’t add anything electrical to your vehicle unless you check
with your dealer first. ,Some electrical equipment can damage
your vehicle and the damage wouldn’t be covered by your warranty. Some add-on electrical equipment can keep other
components from working as they should.
Fuses and Circuit Breakers
The wiring circuits in your vehicle are protected from short circuits by a
combination of fuses, circuit breakers, and fusible thermal links in the
wiring itself. This greatly reduces the chance of fires caused by electrical
problems.
6-60

Downloaded from www.Manualslib.com manuals search engine INTERIOR LAMPS
Ash Tray Lamp
Courtesy Lamp
Dome Lamp Dome Lamp (Rear)
Four-wheel Drive Indicator
Heater
& AC Control
Instrument Panel Compartment Lamp
Overhead Console
Dome Lamp (Front)
Reading Lamps
Rearview Mirror Lamps
Sunshade Vanity Mirror Lamps
Underhood Lamp
161
1003
21 1-2
561
161
37
1003
211-2 194
2 12-2
7065 93
Instrument Cluster Lamps
NOTE:
A PC part number indicates that the bulb and base are one
assembly and must be replaced as
such.
Anti-lock Brake Warning Indicator?
(Utility Models)
Anti-lock Brake Warning Indicator$
(Utility Models)
Brake System Warning Indicator?
Brake System Warning Indicator$
Check Gages Indicator?
Daytime Running Lights Indicator’f
Daytime Running Lights Indicator$
Charging System Indicator?
High Beam Indicator?
High Beam Indicator$
Instrument Cluster Illumination?
Malfunction Indicator Lamp (Service
Engine Soon)?
1
1
1
1
1
I
1
1
1
6
1
PC74
PC 194
PC74
PC 194
PC74
PC74
PC 194
PC74
PC74
PC 194
PC168 PC74
6-64

Downloaded from www.Manualslib.com manuals search engine INTERIOR LAMPS (continued)
Malfunction Indicator Lamp (Service
Engine
Soon)$
Seat Belt Indicator?, $
Shift Indicator (PRNDL)$
Tachometer Warning Band$
Turn Signal Indicator?
Upshift Indicator?
Upshift Indicator$
?With Standard Cluster $With Digital Cluster
1 PC 194
PC 194
PC 194
PC 194
PC74
PC74
PC 194

Downloaded from www.Manualslib.com manuals search engine NAME
ECM I
PWR
WINDOW
WIPER
BRAKE DRL
CIRCUITS PROTECTED FUSE
Engine Control Module Power Windows 10 Amp
Windshield Wipers and
25 Amp
Washers
Four-wheel Anti-lock Brake 15 Amp
Module, Digital Ratio Adapter
Module, Speedometer, Auto
Transmission Converter
Clutch
Daytime Running Light
(Canada Only)
Trailer Wiring
Harness
CD PlayedRadio
TRAILER*
CD
PLAYER**
TCCM
Electric Shift Transfer Case
Module
AUX PWR** Aux. Pwr. Outlet
10 Amp
30 Amp
10 Amp
5 Amp
10 Amp
*In-line fuse
**Fuse is attached
to fuse block.
Service Replacement Part and Filter
Recommendafons
ENGINE (VIN)
OIL FILTER
AIR CLEANER
FILTER PCV VALVE
SPARK PLUGS
FUEL FILTER
RADIATOR CAP 4.3L (2)
PF52
A773C
CV789C
.CR43TSM
GF48 1
RC36
CIRCUIT
BREAKER
30 Amp
4.3L(W)
PF52
A1163C
cv774c
.CR43TSM
GF48 1
RC36
*Use copper-cored resistor type spark plugs.
6-68

Downloaded from www.Manualslib.com manuals search engine Scheduled Maintenance Services
Section
This section covers the maintenance required for your vehicle . Your vehicle
needs these services to retain its safety. dependability. and emission control
performance
.
A Word About Maintenance .................................. 7-2
Your Vehicle and the Environment ............................. 7-2
Scheduled Maintenance Services
............................... 7-3
Selecting The Proper Maintenance Schedule
................... 7-3
Maintenance Schedule
I ................................ 7-4
Maintenance Schedule
I1 ................................ 7-6
Explanation
of Scheduled Maintenance Services ................ 7-7
Owner Checks and Services
.................................. 7-10
At Least Once a Month
................................... 7-10
At Least Once a Year .................................... 7-10
Periodic Maintenance Inspections
............................. 7-12
Recommended Fluids
& Lubricants ........................... 7-13
Maintenance Record
....................................... 7-16
Service Station Checks
..................................... 7-17
~ protection
Plan
Have you purchased the GM Protection Plan? The Plan supplements
your new vehicle warranties
. See your Vehicle dealer for details .
7-1

Downloaded from www.Manualslib.com manuals search engine 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 it 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.
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 Section
8, Customer Assistance
Information.
See “Service Publications” in the Index.
The Maintenance Record 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 this section. 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.
7-2