cooling CHEVROLET BLAZER 1997 2.G User Guide

Downloaded from www.Manualslib.com manuals search engine A CAUTION:
Steam and scalding liquids from a hot cooling
system can blow out and burn you badly. They
are under pressure, and
if you turn the radiator
pressure cap
-- even a little -- they can come out
at high speed. Never turn the cap when the
cooling system, including the radiator pressure
cap,
is hot. Wait for the cooling system and
radiator pressure cap to
cool if you ever have to
turn the pressure cap.
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Downloaded from www.Manualslib.com manuals search engine How to Add Coolant to the Radiator
1. You can remove the pressure cap when the cooling
system, including the pressure cap and upper radiator
hose, is no longer hot. Turn the pressure cap slowly
counterclockwise
until it first stops. (Don't press
down while turning the pressure cap.)
If you hear a hiss. wait for that to stop. A hiss means
there is still some pressure left.
2. Then keep turning the pressure cap, but now push
down as you turn it. Remove the pressure cap.
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Downloaded from www.Manualslib.com manuals search engine Engine Fan Noise
This vehicle has a clutched engine cooling fan. When
the clutch
is engaged, the fan spins faster to provide
more air
to cool the engine. In most everyday 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
engages.
So you may hear an increase in fan noise. This
is normal and should
not be mistaken as the
transmission slipping or making extra shifts.
It is merely
the cooling system functioning properly. The
fa11 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 Flat
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 Inore likely to leak out slowly.
But if you should ever have ;I "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. and 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
xcelerator pedal. Get the \,chicle under control by
steering the way you want the vehicle to go. It may be
\.cry bunlpy and noisy. but you can still steer. Gently
brake
to a stop -- well off the road if possible.
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Downloaded from www.Manualslib.com manuals search engine Engine Coolant
The cooling s stem in your vehicle is filled with
DEX-COOL engine coolant. This cooIant is designed
to remain in your vehicle for 5 years or 150,000 miles
(240
000 km) whichever occurs first, if you add only
DEX-COOL’ extended life coolant.
The following explains your cooling system and
how to
add coolant when
it is low. If you have a problem with
engine overheating, see “Engine Overheating”
in
the Index.
A 50/50 mixture of water and the DEX-COOL@ coolant
for your vehicle will:
Give freezing protection down to -34°F (-37°C).
Give boiling protection up to 265 “F ( 129°C).
Protect against rust and corrosion.
Help keep the proper engine temperature.
Let the warning lights and gages work as
J
they should.
NOTICE:
When adding coolant, it is important that you use
only
DEX-COOL@ (silicate-free) coolant.
If coolant other than DEX-COOL@ is added to
I the system, premature engine, heater core or
radiator corrosion may result. In addition, the
engine coolant
will require change sooner -- at
30,000 miles (50 000 km) or 24 months,
whichever occurs first. Damage caused
by the use
of coolant other than DEX-COOL@ is not
covered
by your new vehicle warranty.
What to Use
Use a mixture of one-half clean water (preferably
distilled) and one-half DEX-COOL@ coolant which
won’t damage aluminum parts.
If you use this mixture.
you don’t need to add anything else.
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Downloaded from www.Manualslib.com manuals search engine A CAUTION:
Adding only plain water to your cooling system
can be dangerous. 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.
Use a 5060 mix of clean
water and
DEX-COOL@ coolant.
NOTICE:
If you use an improper coolant mix, your engine
could overheat and be badly damaged. The
repair cost wouldn’t be covered
by your
warranty.
Too much water in the mix can freeze
and crack the engine, radiator, heater core and
other parts.
If you have to add coolant more than four times a year,
have
your dealer check your cooling system.
I NOTICE:
If you use the proper coolant, you don’t have to
add extra inhibitors
or additives which claim to
improve the system. These can be harmful.
6-24

Downloaded from www.Manualslib.com manuals search engine Each new wheel should have the same load-carrying
capacity, diameter, 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
to have the
right wheel, wheel bolts and wheel nuts for your vehicle.
I A CAUTION:
NOTICE:
The wrong wheel can also cause problems with
bearing life, brake cooling, speedometer or
odometer calibration, headlamp aim, bumper
height, vehicle ground clearance and tire
or tire
chain clearance to the body and chassis.
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 a collision in which
you or others could be injured. Always use the
correct wheel, wheel bolts and wheel nuts
for replacement.
See “Changing a Flat Tire” in the Index for
more information.
Used ’Replacement Wheels
I A CAUTION:
Putting a used wheel on your vehicle is
dangerous. You can’t know how it’s been used or
how
far 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.
6-47

Downloaded from www.Manualslib.com manuals search engine Capacities (Approximate)
Cooling System* Automatic Trans.
............ 1 1.7 quarts ( 1 I. 1 L)
Manual Trans. .............. 1 1.9 quarts ( 1 1.3 L)
Crankcase* ................. 4.5 quarts (4.3 L)
Automatic Transmission
(Drain and Refill)"
........... 5.0 quarts (4.7 L)
Differential Fluid
Rear
........................ 4.0 pints (1.9 L)
Front ....................... 2.6 pints (1.2 L)
Fuel Tank ..................... 19 gallons (72 L)
A/C Refrigerant . . 30 oz. or 2 lbs. (0.9 kg) of R- 134a
*After refill, the level
must be checked.
Air Conditioning Refrigerants
Not all air conditioning refrigerants are the same. If the
air conditioning system in your vehicle needs
refrigerant, be sure the proper refrigerant
is used. If
you're not sure, ask your GM dealer.
Vehicle Dimensions*
Wheelbase
S/T10516 .............. 100.5 inches (255.3 cm)
1 S/T10506 .............. 107.0 .
Length
S10516 ............... 175.0
T10516 ............... 175.4 nches
(27 I .8 cm)
nches (444.5 cm)
nches (445.5 cm)
S/T 10506 .............. 18 I .5 inches (46 I .O cm)
Height
S10516 ................ 66.0 inches (167.6 cm)
T10516
................ 66.9 inches (170.0cm)
S10506
................ 65.9 inches (167.4 cm)
T10506
................ 67.0 inches (170.2 cm)
Width
....... .......... 67.8 inches ( 172.2 cm)
Front Tread
S Series ................ 55.0 inches (139.6 cm)
T Series ................ 57.3 inches (145.4 cm)
S Series ................ 54.7 inches (138.8 cm)
T Series ................ 55.1 inches ( 139.9 cm)
Rear Tread
*Figures reflect base equipment only.
6-64

Downloaded from www.Manualslib.com manuals search engine Maintenance Schedule
I Short TripKity Definition - ~-
Follow the Short TripKity Maintenance Schedule if any
one
of these conditions is true for your vehicle:
Most trips are less than 5 to 10 miles (8 to 16 km).
This is particularly important when outside
temperatures are below freezing.
driving in stop-and-go traffic).
off-road frequently.
your vehicle.
or other commercial application.
Most trips include extensive idling (such as frequent
You operate your vehicle in dusty areas or
You frequently tow a trailer or use a carrier on top of
If the vehicle is used for delivery service, police, taxi
One of the reasons you should follow this schedule if you
operate your vehicle under any
of these conditions is that
these conditions cause engine oil
to break down sooney:
I Short TripKity Intervals
Every 3,000 Miles (5 000 km): Engine Oil and Filter
Change (or
3 months, whichever occurs first). Chassis
Lubrication (or
3 months, whichever occurs first). Drive
Axle Service (or 3 months, whichever occurs first).
Short TripKity Intervals
Every 6,000 Miles (10 000 km): Tire Rotation.
Every 15,000 Miles (25 000 km): Air Cleaner Filter
Inspection,
if driving in dusty conditions. Front
Wheel Bearing Repack
(2WD only) (or at each brake
relining, whichever occurs first).
Every 30,000 Miles (50 000 km): Air Cleaner Filter
Replacement. Fuel Filter Replacement.
Every 50,000 Miles (83 000 km): Automatic
Transmission Service (severe conditions only).
Every 60,000 Miles (100 000 km): Engine
Accessory Drive Belt Inspection. Fuel Tank, Cap
and Lines Inspection.
Every 100,000 Miles (166 000 km): Spark Plug Wire
Inspection. Spark
Plug Replacement. Positive
Crankcase Ventilation (PCV) Valve Inspection.
Every 150,000 Miles (240 000 km): Cooling System
Service
(or every 60 months, whichever occurs first).
These intervals only summarize maintenance services.
Be sure to follow the complete maintenance schedule
on the following pages.

Downloaded from www.Manualslib.com manuals search engine Maintenance Schedule
c
Long Trip/Highway Definition I
Follow this maintenance schedule only if none of the
conditions from the Short Trip/City Maintenance
Schedule is true.
Do not use this schedule if the vehicle
is used for trailer towing, driven in a dusty area
or used
off paved roads. Use the Short Trip/City schedule for
these conditions.
Driving a vehicle with a fully warmed engine under
highway conditions causes engine oil to break
down slowel:
1 Long Trip/Highway Intervals I
Every 7,500 Miles (12 500 km): Engine Oil and Filter
Change (or every
12 months, whichever occurs first).
Chassis Lubrication (or every
12 months, whichever
occurs first). Drive Axle Service. Tire Rotation.
Replacement. Air Cleaner Filter Replacement. Front
Wheel Bearing Repack
(2WD only).(or at each brake
relining, whichever occurs first).
Transmission Service (severe conditions only).
Drive Belt Inspection. Fuel Tank, Cap and
Lines Inspection.
Inspection.
Spark Plug Replacement. Positive
Crankcase Ventilation (PCV) Valve Inspection.
Every 150,000 Miles (240 000 km): Cooling System
Every 30,000 Miles (50 000 km): Fuel Filter
Every 50,000 Miles (83 000 km): Automatic
Every 60,000 Miles (100 000 km): Engine Accessory
Every 100,000 Miles (166 000 km): Spark Plug Wire
I Service (or every 60 months, whichever occurs first).
These intervals only summarize maintenance services.
Be sure to follow the complete maintenance schedule
on the following pages.
7-6

Downloaded from www.Manualslib.com manuals search engine Short TriplCity Maintenance Schedule I
- When doing frequent trailer towing.
- Uses such as found in taxi, police or
delivery service.
If you do not use your vehicle under- any of
these conditions, the fluid and filter do not
require changing.
Manual transmission fluid doesn’t
require change.
0 Inspect Positive Crankcase Ventilation
(Pcv) valve. An Emission Control Service.
DATE ACTUAL MILEAGE SERVICED BY
150,000 Miles (240 000 km)
0 Drain, flush and refill cooling system
(or every 60 months since last service,
whichever occurs first). See “Engine
Coolant”
in the Index for what to use.
Inspect hoses. Clean radiator, condenser,
pressure cap and neck. Pressure test
cooling system and pressure cap.
An Emission Control Service.
I DATE 1 ACTUAL MILEAGE ISERVICED BY:l
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