warning CHEVROLET BLAZER 1993 Owner's Guide

Engine Fan Noise
This vehicle has a clutched engine cooling fan. When the clutc\
h is engaged,
the fan spins faster
to provide more air to cool the engine. In most every day
driving conditions the clutch is not engaged. This improves fuel economy and
reduces fan noise. Under heavy vehicle loading, trailer towing \
and/or high
outside temperatures, the fan speed increases when the clutch e\
ngages.
So
you may hear an increase in fan noise. This is normal and sh\
ould not be
mistaken
as the transmission slipping or making extra shifts. It is merely the
cooling system functioning properly. The fan
will slow down when additional
cooling is not required and the clutch disengages.
You may also hear this fan noise when you start the engine. \
It will go away
as the fan clutch disengages.
If a Tire Goes Fiat
It’s unusual for a tire to “blow out” while you’re driving,\
especially if you
maintain your tires properly.
If air goes out of a tire, it’s much more likely to
leak out slowly. But if you should ever have a “blowout,” here are a few tips
about what
to expect and what to do:
If a front tire fails, the flat tire will create a drag that pulls the vehicle toward
that side. Take your foot
off the accelerator pedal and grip the steering wheel
firmly. Steer to maintain lane position, then gently brake
to a stop well out of
the traffic lane.
A rear blowout, particularly on a curve, acts much like a skid and may
require the same correction you’d use in a skid. In any rear blowout, remove
your foot from the accelerator pedal. Get the vehicle under co\
ntrol by steering
the way you want the vehicle
to go. It may be very bumpy and noisy, but
you can still steer. Gently brake to a stop, well off the road if possible.
If your tire goes flat, the next part shows how to use your jacking equipment
to change a flat tire safely.
Changing a Flat Tire
If a tire goes flat, avoid further tire and wheel damage by driving slowly to a
level place. Turn
on your hazard warning flashers.
5-1 6

Service & Appearance Care
The following explains your cooling system and how to add cool\
ant when it is
low.
If you have a problem with engine overheating, see “Engine
Overheating” in the Index.
The proper coolant for your vehicle
will:
Give freezing protection down to -34°F (-37°C).
Give boiling protection up to 258°F (125°C).
Protect against rust and corrosion.
Help keep the proper engine temperature.
Let the warning lights and gages work as they should.
What to Use:
Use a mixture of clean water (preferably distilled), and antifreeze that meets
“GM Specification
6038-M,” which won’t damage aluminum parts. Also use
GM Engine Coolant Supplement (sealer) with a complete coolant change.
If
you use these, you don’t need to add anything else.
Adding only plain water to your cooling system can be dangerous.
I
Plain water, or some other liquid like alcohol, can boil before the \
proper coolant mix will. Your vehicle’s coolant warning system is set
for the proper coolant mix. With plain water or the wrong mix, your
engine could get too hot but you wouldn’t get the overheat \
warning. Your engine could catch fire and you or others could be burned. Us\
e
a 50/50 mix of clean water and a proper antifreeze.
jIi ,yo.w use an improper coolant mix, your engine .coutd overheat andi
badly damaged. The repair cost wouldn’t be covered by your warranty.’ TP~
much water in ;the mix can freeze and crack the engine, radiator, .heater
wre-ad -.other parts.
Some conditions, such as air trapped in the cooling system, can affect the
coolant level in the radiator. Check the coolant level when th\
e engine is cold
and follow the steps under “Adding Coolant” for the prope\
r way to
add
coolant.
.. .. ..
If you have to add coolant mdre than four times a year, have your dealer
check
your cooling system.
6-26

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

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

Section
A
Accelerator Control System ........ 6-35
Air Cleaner
.................................... 6-1 6
Air Conditioning
................... 3.5. 6-69
Rear (Wagon Models)
................ 3-8
Refrigerant Capacity
................. 6-69
System Controls
......................... 3-6
Antenna. Fixed Mast
................... 3-21
Antilock Brakes (See “Brakes”)
System Warning Light
............. 2-70
Appearance Care
.......................... 6-57
Materials
.................................... 6-64
Arbitration Program
........................ 8-3
Audio Systems
............................. 3-1 2
AM Radio
................................... 3-1 3
AM-FM Stereo Audio System
with Cassette Deck
.............. 3-14
AM-FM Stereo Audio System
with Cassette Deck and Equalizer
.............. 3-1 7. 3-1 9
Cassette Deck ............................... 3-1 6
Cassette Tape Player Care
.......... 3-21
Automatic Transmission
............... 2-1 7
FI uid
............................................ 6. 1 7
Axle
Front
................................ 2.32. 6-24
Rear
............................................ 6-24
Rear Locking
............................. 2-22
B
Battery ........................................... 6-37
Belts (See “Safety Belts”)
Better Business Bureau Mediation
..................................... 8-3
Blizzard
.......................................... 4-55
Brakes
Adjustment
................................. 4-18
Antilock
...................................... 4-15
Antilock Warning Light
............ 2-70
Fluid
........................................... 6-32
Four-wheel Antilock
................. 4-16
Hydro-Boost System
(Hydraulic Pump)
................. 6-33
Master Cylinder
........................ 6-32
Parking
....................................... 2-23
Pedal Travel
.............................. 4-18
Rear Drum Brakes
................... 4-18
Replacing Parts
........................ 6-33
System Warning Light .2-69, 4-17
Trailer
......................................... 4-60
Wear Indicators
........................ 4-17
Braking
.......................................... 4-13
In Emergencies
........................ 4-18
Break-In, New Vehicle
................ 2-11
Bulb Replacement ....................... 6-37
Replacement Chart
.................. 6-72
9-1

INDEX
H
Halogen Bulbs .............................. 6.38
Hazard Warning Flashers
.............. 5-2
Head Restraints
.............................. 1-5
Headlights
............... 2-46, 6-38, 6-43
Composite
.................................. 6-39
High Beam Indicator Light
...... 2-74
High-Low Beam
............. 2-38, 4-36
Reminder
................................... 2-47
Replacement
................... 6-37, 6-72
Sealed Beam
............................. 6-38
Heating System (with AIC)
........... 3-5
Rear (Wagon Models)
................ 3-8
Rear Window Defogger
........... 3-11
System Controls
......................... 3-6
Heating System (without AIC)
..... 3-4
Fan Knob ..................................... 3-4
Function Lever
............................ 3-4
Rear Window Defogger
........... 3-1 1
Temperature Lever ...................... 3-4
Highway Hypnosis
........................ 4-46
Hitches
........................................... 4-59
Hood
Latches and Hinge ................... 6-36
Release
........................................ 6-8
Horn
............................................... 2-35
Hydraulic Clutch
........................... 6-21
Grease Fitting
............................ 6-23
Hydroplaning
................................. 4-38
1
If You’re Stuck In Sand, Mud,
Ice or Snow
.............................. 5-31
Ignition Switch
.............................. 2-1 1
Inflation-Tire Pressure ................. 6-49
Instrument Panel
.......................... 2-62
Standard Cluster
....................... 2-64
J
Jack and Tools ............................. 5-18
Removal ..................................... 5-1 8
Storage
............................ 5-29, 5-30
Jump Starting
................................. 5-3
K
Key Release Lever ....................... 2-13
Keys
................................................. 2-3
L
Lights ............................................. 2-46
Brake System Warning
............ 4-17
Bulb Replacement .................... 6-37
Charging System Light
........... 2-71
Check Gages Light
.................. 2-73
Dome
......................................... 2-48
Front Parkingnurn Signal
........ 6-40
Headlights (See “Headlights”)
Indicator
..................................... 2-68
Operation
................................... 2-37
Reading
..................................... 2-49
Roof Marker
.............................. 6-42
Service Engine
Soon ..... 2-72, 6-45
Rear
........................................... 6-42
Replacement Chart
.................. 6-72
Side Marker
.............................. 6-41
Underhood Reel
....................... 2-50
Loading Your Vehicle
........ 4-25, 6-46
Add-on Equipment
................... 6-48
Lubrication
..................................... 6-35
Accelerator Control System
.... 6-35
Constant Velocity Joints
......... 6-36
Front Axle
................................. 6-24
Front Shock Absorbers
........... 6-34
Front Suspension and Steering Linkage
................... 6-34
Front Wheel Bearings
.............. 6-34
Tailgate Handle
......................... 6-37
Hydraulic Clutch Grease Fitting
....................... 6-23
Hood Latches and Hinge
........ 6-36
Lock Cylinders
.......................... 6-36
Propeller Shaft Slip Splines
... 6-36
Rear Axle
.................................. 6-24
Recommended Lubricants
...... 7-25
Transfer Case
............................ 6-23
Luggage Carrier
........................... 2-80
Body
........................................... 6-36
9-4

Safety Chains ............................... 4-60
Scheduled Maintenance
Seats Safety Warnings and Symbols
..... 0-2
Services
............................ 7-4, 7-1 8
Controls
........................................ 1-2
Easy Entry Seat
.......................... 1 -6
Manual Front
............................... 1 -2
Power Driver‘s
............................ 1-3
Rear Folding
................................ 1-8
Reclining
..................................... 1-3
Removable
................................. 1-1 1
Seatback Latches
....................... 1-5
(AIR) System
............................ 6-45
Do-It-Yourself
............................... 6-3
Parts Identification Label
......... 6-67
Publications
........................ 8-6, 8-8
Replacement Parts and Filter Recommendations
.................. 6-69
Service Engine
Soon Light ......... 2-72
Service Station Checks
............... 7-28
Shift Indicator Light
.......... 2-22, 2-74
Shifting Into Park
......................... 2-24
Single Belt Accessory Drive
....... 6-34
Spare Tire
..................................... 5-1 8
Removal ..................................... 5-20
Storage ....................................... 5-30
Specification Charts ..................... 6-68
Speedometer
................................. 2-66
Starting Your Engine
................... 2-1 4
Column Shift Lever
.................. 2-25
In Emergencies
......................... 4-1 9
Tips ............................................. 4-1 8
Storage Compartments ................ 2-55
Other
.......................................... 2-6 1
Sun Visors .................................... 2-53
Secondary
Air Injection
Service
Steering
......................................... 4-18
T
Tachometer ................................... 2-67
Tailgate
............................................ 2-7
Electric Glass Release ............. 2-34
Theft
.............................................. 2-10
Thermostat
.................................... 6-28
Tilt Wheel
..................................... 2-35
Tires
............................................... 6-48
Balancing
................................... 6-55
Chains
........................................ 6-56
Changing a Flat
............. 5-16, 5-20
Flat
............................................. 5-16
Hub CapsNVheel Nut Caps
.... 5-22
Inspection and Rotation
.......... 6-52
Loading
...................................... 6-46
New ............................................
Pressure ..................................... 6-49
Spare (See “Spare Tire”)
Uniform Tire Quality Grading
. 6-54
Torque Lock
........................ 2-24, 4-52
Towing
A Trailer ..................................... 4-56
Backing Up
............................... 4-61
Following Distance
................... 4-61
Hitches
....................................... 4-59
Maintenance
.............................. 4-63
Towing Your Vehicle
...................... 5-7
Traffic Lights
................................... 4-7
Trailer Brakes
.............................. 4-60
Towing
........................................ 4-56
Wiring Harness
......................... 2-82
Trailering Package
........................ 6-47
Transfer Case
..................... 2-30, 6-23
Transmission Automatic
.................................. 2-17
Five-Speed Manual
.................. 2-20
Fluid ................................. 6-1 7, 6-20
Fluid, To Add
.................. 6-1 9. 6-21
Fluid.
To Check .............. 6-18. 6-20
6-53
9-6

Four-wheel
Shift Light
.................................. 2-22
Torque Lock (Automatic
Transmission)
............. 2.24. 4-52
Trip Odometer
............................... 2-67
V
Damage Warnings ...................... 0-3
Identification Number
.... 6.65. 6-66
Loading
............................ 4.25. 6-46
Storage
....................................... 6-37
Symbols
...................................... 0-4
Ventilation System
......................... 3-2
Air Vents
...................................... 3-3
Tips
............................................... 3.2
Voltmeter
....................................... 2-79
(See “Four-Wheel
Drive”)
Vehicle
W
Warning Lights. Gages and Indicators
.................... 2.68. 2-76
(Also See “Lights”)
Devices. Other
............... ; ............ 5-3
Alignment and Tire Balance
... 6-55
Aluminum
.................................. 6-62
Hub CapsNheel Nut Caps
.... 5-22
Nut Torque
..................... 6.34. 6-68
Replacement
............................. 6-55
Used Replacement
................... 6-56
Windows
........................................ 2-33
Windshield Washer
...................... 2-40
Rear Window
............................ 2-54
Washer Fluid
.................. 2.40. 6-31
Winter Driving
.............................. 4-53
Wipers. Windshield
..................... 2-39
Blade Chatter
............................ 6-60
Blade Inserts
............................ 6-35
Cleaning Blades
........................ 6-60
Rear Window
............................ 2-54
Wheels
9-7