wheel CHEVROLET BLAZER 1993 Manual PDF

Service & Appearance Care
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 an\
d construction
type (bias, bias-belted or radial) as your original tires.
I CAUTION
A
Mixing tires could cause you to lose control while driving. If you mix
tires
of different sizes or types (radial and bias-belted tires) the
vehicle may not handle properly, and you could have a crash. Be
sure
to use the same size and type tires on all wheels.
I
Uniform Tire Quarity Grading
The following information relates to the system developed by the United
States National Highway Traffic Safety Administration which grade\
s tires by
treadwear, traction and temperature performance. (This applies o\
nly 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 var\
iations
in
driving habits, service practices and differences in road characteristics and
climate.
Traction-A, B, C
The traction grades, from highest to lowesr are: A, 8, 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.
Temperature-A, B, C
The temperature grades are A (the highest), B, and C, representing the tire’s
resistance to the generation
of heat and its ability to dissipate heat when
tested under controlled conditions on a specified indoor laborat\
ory test wheel.
Sustained high temperature can cause the material
of the tire to degenerate
and reduce tire life, and excessive temperature can lead to sudden tire
failure. The grade
C corresponds to a level of performance which all
passenger car tires must meet under the Federal Motor Vehicle \
Safety
6-54

Standard No. 109. Grades B and A represent higher levels of performance on
the laboratory
test wheel than the minimum required by law.
Warning: The temperature grade for this tire is established for a tire that is
properly inflated and not overloaded. Excessive speed, underinfla\
tion, or
excessive loading, either separately or in combination, can cause heat buildup
and possible tire failure.
Those grades are molded on the sidewalls of passenger car tires.
While the tires available as standard or optional equipment on \
General Motors
vehicles may vary with respect to these grades, all such tires meet General
Motors performance standards and have been approved for use on General
Motors vehicles.
All passenger type (P Metric) tires must conform to Federal
safety requirements in addition to these grades.
Wheel Alignment and Tire Balance
The wheels on your vehicle were aligned and balanced carefully \
at the
factory to give you the longest tire life and best overall performance.
In
most cases, you will not need to have your wheels aligned again.
However,
if you notice unusual tire wear or your vehicle pulling one way or
the other, the alignment may need to be reset.
If you notice your vehicle
vibrating when driving on a smooth road, your wheels may need to be
rebalanced.
Wheel Replacement
Replace any wheel that is bent, cracked or badly rusted. If wheel nuts keep
coming loose, the wheel, wheel bolts, and wheel nuts should be\
replaced.
If
the wheel leaks air out, replace it (except some aluminum whe\
els, which can be repaired). See your GM truck dealer
if any of these conditions exist. Your
dealer will know what kind of wheel you need.
Each new wheel should have the same load carrying capacity, di\
ameter,
width, offset, and be mounted the same way as the one it replaces.
If you need to replace any of your wheels, wheel bolts, or wheel nuts,
replace them only with
new GM original equipment parts. This way, you will
be sure you have the right wheel, wheel bolts, and wheel nuts\

for your
vehicle.
6-55

I CAUTION I
A Using the wrong replacement wheels, wheel bolts or wheel nuts on
your vehicle can be dangerous.
It could affect the braking and
handling
of your vehicle, make your tires lose air and make you lose
control. You could have an collision in which you or others could be
injured. Always use the correct wheel, wheel
bolts, and wheel nuts
for replacement.
I
I
I The wrong wheel can also cause problems with bearing life, brake cooling,
speedometerlodometer calibration, headlight aim, bumper height, vehicle
ground clearance, and tire
or tire chain clearance to the body and chassis.
A Putting a used wheel on your vehicle is dangerous. You can't know
how it's been used or how many miles it's been driven. It could fail
suddenly and cause an accident. If you have to replace a wheel, use
a new GM original equipment wheel,
I
Tire Chains
rNOTICE 'If put vehicle has LT265/75R16 size tires, don't use tire chams; they i can!
damage your vehicle.
6-56

Protecting Exterior Bright Metal Parts
Bright metal parts should be cleaned regularly to keep their l\
uster. Washing
with water is all that is usually needed. However, you may use
GM Chrome
Polish on chrome or stainless steel trim,
if necessary.
Use special care with aluminum trim.
To avoid damaging protective trim, never
use auto or chrome polish, steam or caustic soap
to clean aluminum. A
coating of wax, rubbed to a high polish, is recommended for all bright metal
parts.
Aluminum Wheels (If So Equipped)
Your aluminum wheels have a protective coating similar to the painted surface
of your vehicle. Don’t use strong soaps, chemicals, chrome polis\
h, or other
abrasive cleaners on them because you could damage this coating\
. After
rinsing thoroughly, a wax may be apptied.
NOTICE 1
f you have aluminum wheels, don’t use an automatic vehicle wash that
?as hard silicon carbide cleaning brushes. These brushes can take
off the
xotective coating.
White Sidewall Tires
Your General Motors dealer has a GM White Sidewall Tire Cleaner. You can
use a stiff brush with
it.
Weatherstrips
These are places where glass or metal meets rubber. Silicone g\
rease there
will make them last longer, seal better, and not stick or squeak. Apply silic\
one
grease with a clean cloth at least eve@ six months.
Sheet Metal Damage
If your vehicle is damaged and requires sheet metal repair or replacement,
make sure the body repair shop applies anti-corrosion material
to the parts
repaired or replaced
to restore corrosion protection.
Foreign Material
Calcium chloride and other salts, ice melting agents, road oil \
and tar, tree
sap, bird droppings, chemicals from industrial chimneys, and 0the.r foreign\

matter can damage your vehicle’s finish
if they remain on painted surfaces.
Use cleaners that are marked safe for painted surfaces for the\
se stains.
Finish Damage
Any stone chips, fractures or deep scratches in the finish should be repaired
right away. Bare metal will corrode quickty and may develop into a major
repair expense.
6-62

Service Parts Iden Mfl cation Label
VEH!CLE
NUMBER IDENTfFlCATlOb
WHEELBASE
I
6BJ 621. 62U 670 671 679 763 BHJ 9HJ
PAINT TECHNOLOGY I ORDER NUMBER
EXTERIORCOLORS MODELMSIGNATION
OPTIONCONTENT
t
-
- K2680
You’ll find this label on the inside of the glove box. It’s very helpful if you
ever need
to order parts. On this label is:
Your VIN.
Its model designation.
Paint information.
A list of all production options and special equipment.
Be sure that this label is not removed from the vehicle.
Add-on Electrical Equipment
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 of it can just keep
ther things
from working as they should.
6-67

Service & Appearance Care
Specification Charts
Replacement Parts
Replacement part numbers listed in this section are based on the latest
information available at the time
of printing, and are subject to change. If a
part listed in this manual is not the same as the part used in your vehicle
when
it was built, or if you have any questions, please contact your GM truck
dealer.
Engine identification
Liter VIN Fuel Produced
Displacement Type Engine Code System BY Emissions
5.7 V8 K TB I U.S., Can.
7.4 V8 N TB I us.
*
*
*Light Duty Emissions with 8500 GVWR and below or:
Heavy Duty Emissions with 8501 GVWR and
above.
TO291
Wheel Nut Torque
MODEL DESCRIPTION TORQUE
C 1500 5 bolts (14mm) 120 ft. Ibs. (1 60 Nmm)
K 1500, C-K 2500 6 bolts (1 4mm) 120 ft. Ibs. (160
N-m)
C-K 2500 8 bolts (14mm) 120 ft. Ibs. (160 Nem)
I TO2951
Cooling System Capacity
VIN QUANTITY*
ENGINE CODE Without NC With AIC
5.7L K 17.5 Quarts (16.5 Liters)
18 Quarts (1 7 Liters)
7.4- N 23 Quarts
(22 Liters) 25 Quarts (23.5 Liters)
*All quantities are approximate.
*After refill, the level
MUST be checked as outlined under “Engine Cooling
System” in Section
5.
TO292
6-68

Fuses and Circuit Breakers
Name
Gages
Turn-BIU EMCIIgn
Inj.
A
Brake
AC/Htr
ctsy
Park LP
P. Lps
StopiHaz.
Wiper Radio
Acc/lgn.
AcdBatt. Crank 4WD
DRL
RR Wpr
TIG Re1
Circuits Protected
Cruise Control, 4 WD Display Illum. Rear
Window Defogger Timer, Aux. Batt. Relay Feed, Safety Belt Buzzer Timer, Cluster
Ign. Feed
Back-up Lamps, Turn Signals
T.C.C., Air Diverter, E.S.C.,
E.G.R., E.C.M.
Ign., R.W.A.L. Brake Switch
Throttle Body Injectors
A.B.S., Cluster-Speed0
H.V.A.C.
4 WD, Aux. Batt. Relay
Dome Lamp, Ctsy. and Glove Box Lps.
(TR-9), Radio (Memory-Clock)
Horn Relay, Horn Feed, Park Lamps C49 SW Illum., Headlamp
“On” Warning,
Radio Illum., H.V.A.C. Illum.
Haz. Flasher, Seat Belt Buzzer, Stop
Lmps., A.B.S. Memory
Windshield Wiper, Washer
Radio Feed
Pwr. Windows
Door Locks, Rear Window Defogger Crank, Discreet
Four Wheel Drive
Daytime Running Lights
Rear Window Wiperwasher
Cigar Lighter, Rear Hatch Release
Fuse
20 Amp
15 Amp
10 Amp
10 Amp
15 Amp
25
Amp
20 Amp
20 Amp
5 Amp
15 Amp
25 Amp
10 Amp
5 Amp
25 Amp
15 Amp
25 Amp
25 Amp
Circuit
Breaker
30 Amp
30 Amp
An inline fuse is used for the underhood lamp
Jo not use fuses of higher amperage than those recommended above.
TO291
6-70

Service & Appearance Care
Light Bulb Data
Lamp or Bulb
6052
Headlamps: 2 Headlamp System
Exterior Liqhts:
Trade No.
Haloaen (Opt.) H6054
Headlamps: 4 Headlamp System
9005
(Composite) 9006
Interior Lights:
Dome Lamps 21
1-2
I Readina Lamps I 211-2
Roof Console Lamps
1 94
Instrument Panel Compartment Lamp 1
94
Four Wheel Drive Shift Lever 161
Four Wheel Drive Indicator 194
, Heater or
NC Control Lamp 1003
, Courtesy Lamp
168
1 Ashtray Lamp I 194
Malfunction Indicator (“Service Engine
-
Soon”)
*Suburban only tCanadian Vehicles only
74
Upshift Indicator 74
Power Rating
55/65 121
35/65
2
65
2
1 Candle Power
,,.,I
32-2
11
10
12 2
XI
TO293
6-72

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 Under
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 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 (L\
ight
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 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.
Certification Label to see what your Gross Vehicle Weight Rating
(GVWR) is. See “Loading Your Vehicle” in the Index.
If your engine has more than one emissions classification, look at your
7-4

Scheduled Maintenance Services
GASOLINE ENGINES WITH LIGHT DUTY EMISSIONS-
If your driving conditions meet those specified in “Scheduled Ma\
intenancc
Services” in this section, use Maintenance Schedule
I (t).
Item Miles (000) 3 6 7.5 9 12 15 18
No. Service Kilometers (000) 5 10 12.5 15 20 25 30
1 Engine Oil Change*-Every 12 Months, or e
Oil Filter Change*-Every 12 Months, or e
2 Chassis Lubrication-Every 12 Months, or e
3 Clutch Fork Ball Stud Lubrication
5 Cooling System Service*-Every 24
6 Air Cleaner Filter Replacement* Months
or
7 Front Wheel Bearing Repack
8 Transmission Service**
25 Drive Axle Service**
26 Brake Systems Inspection**
FOOTNOTES:
**See “Explanation
of Scheduled Maintenance Services” in this section.
*An Emission Control Service
tTo determine the emissions classification of your engine refer to “Selecting
the
Proper Maintenance Chart”
in this section.
TO332