cooling CHEVROLET BLAZER 1996 2.G User Guide

Downloaded from www.Manualslib.com manuals search engine I A CAUTION:
YOL -an be burned if you spill coolant on hot
engine parts. Coolant contains ethylene glycol
and it will
burn if the engine parts are hot
enough. Don’t spill coolant on
a hot engine.
*
When the coolant in the coolant recovery tank is at
ADD, start your vehicle.
If the overheat warning continues, there’s one more
thing
you can try. You can add the proper coolant mix
directly to the radiator, but be sure the cooling system is
cool before
you do it.
I A CAUTION:
t ~ am and scalding liqu--_J 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
CAUTION: (Continued)
CAI JTTON: (Continued)
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.
E
5-16

Downloaded from www.Manualslib.com manuals search engine How to Add Coolant to the Radiator
A
1. You can remove the radiator pressure cap when
the cooling system, including
the radiator 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.
5-17

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 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
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
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 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 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, 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
accelerator pedal. Get
the vehicle under control 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 a tire goes flat, the next part shows how to use your
jacking equipment
to change a flat tire safely.
5-20

Downloaded from www.Manualslib.com manuals search engine What to Use
Refer to the Maintenance Schedule to determine what
kind of lubricant to use. See “Recommended Fluids and
Lubricants” in the Index.
Engine Coolant
The cooling system in your vehicle is filled with new
DEX-COOL TM (orange-colored, silicate-free) engine
coolant. This coolant is designed to remain
in your
vehicle for
5 years or 100,000 miles (166 000 km),
whichever occurs first.
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 proper coolant for
your vehicle will:
0 Give freezing protection down to -34°F (-37 “C).
Give boiling protection up to 265 “F (129°C).
0 Protect against rust and corrosion.
Help keep the proper engine temperature.
0 Let the warning lights and gages work as they should.
I 1
NOTICE:
When adding coolant it is important that you use
DEX-COOL TM (orange-colored, silicate-free)
coolant meeting
GM Specification 6277M.
If silicated coolant is added to 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.
6-22

Downloaded from www.Manualslib.com manuals search engine What to Use
Use a mixture of one-half
clean water (preferably
distilled) and one-half DEX-COOL
TM (orange-,colored,
silicate-free) antifreeze that meets
GM Specification
6277M, which won’t damage aluminum parts. Use
GM Engine Coolant Supplement (sealer) (GM Part
No. 3634621) with any complete coolant change. If you
use this mixture, you don’t need
to add anything else.
L
Adding only plain water to your cooli,,g 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 50/50 mix of clean
water and
DEX-COOL TM (orange-colored.
silicate-free) antifreeze.
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.
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.
6-23

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 model.
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.
NOTICE:
The wrong wheel can also cause problems with
bearing life, brake cooling, speedometer/odometer
calibration, headlamp aim, bumper height, vehicle
ground clearance and tire or tire chain clearance
to the body and chassis.
See “Changing a Flat Tire”
in the Index for
more information.
Used Replacement Wheels
Putting
a used wheel on wr 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.
6-47

Downloaded from www.Manualslib.com manuals search engine Capacities (Approximate)
Cooling System"
Auto. Trans.
................ 11.7 quarts (1 1.1 L)
Manual Trans. .............. 11.9 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
...........
Front ............ ....... 2.6 pints (1.2 L)
2-Door.. .................... 19 gallons (72 L)
4-Door.. .................... 18 gallons (68 L)
A/C Refrigerant. .. 30 oz. or 2 Ibs. (0.9 kg) of R- 134a
Fuel Tank
*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.
Jf you're not sure, ask your GM dealer.
Vehicle Dimensions*
Wheelbase
Sl"10516
.............. 100.5 inches (255.3 cm)
Sl"10506
............ 107.0 inches (271.8 cm)
S10516
............. 175.0 inches (444.5 cm)
TI0516
............... 175.4 inches (445.5 cm)
S/T10506
.............. ,181.5 inches (461.0 cm)
Length
Height S10516
....... ..... 66.0 inches (167.6 cm)
T10516
..... ... 66.9 inches (170.0 cm)
S 10506 ............ 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)
Rear Tread
S Series ................ 54.7 inches (138.8 cm)
T Series
................ 55.1 inches (139.9 cm)
*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.
Most trips include extensive idling (such as frequent
driving
in stop-and-go traffic).
You operate your vehicle in dusty areas or
off-road frequently.
You frequently tow a trailer or use a carrier on top of
If the vehicle is used for delivery service, police, taxi
your vehicle.
or other
commercial application.
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
soonex
Short Trip/City 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).
At 6,000 Miles (10 000 km) -- Then Every
12,000 Miles
(20 000 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): Cooling System
Service (or every
60 months, whichever occurs first).
Spark Plug Wire Inspection. Spark Plug Replacement.
Positive Crankcase Ventilation (PCV) Valve Inspection.
These intervals only summarize maintenance services.
Be sure to follow the complete maintenance schedule
on
the following pages.
7-4

Downloaded from www.Manualslib.com manuals search engine Maintenance Schedule
1 Long TripMighway Definition
Follow this maintenance schedule only ir none of the
conditions from the Short Trip/City Maintenance
Schedule is true.
Driving a vehicle with a fully warmed engine under
highway conditions causes engine oil to break
down slower:
Every 7,500 Miles (12 500 km): Engine Oil and rllter
Change (or every
12 months, whichever occurs first).
Chassis Lubrication (or every 12 months, whichever
occurs first). Drive Axle Service.
At 7,500 Miles (12 500 km) -- Then Every
15,000 Miles
(25 000 km): Tire Rotation.
Every 30,000 Miles (50 000 km): Fuel Filter
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.
Every 100,000 Miles (166 000 km): Cooling System
Service
(or every 60 months, whichever occurs first).
Spark Plug Wire Inspection. Spark Plug Replacement.
Positive Crankcase Ventilation (PCV) Valve Inspection.
Every 50,000 Miles (83 000 km): Automatic
Every 60,000 Miles (100 000 km): Engine Accessory
These intervals only summarize maintenance services.
Be sure to follow the complete maintenance schedule otl
the following pages.
7-5

Downloaded from www.Manualslib.com manuals search engine Short Trip/City Maintenance Schedule
100,000 Miles (166 000 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. 3-
0 Inspect spark plug wires.
0 Replace spark plugs.
0 Change automatic transmission fluid and
filter
if the vehicle is mainly driven under
one or more of these conditions:
An Emission Control Service.
An Emission Control Service.
- In heavy city traffic where the outside
temperature regularly reaches
90 OF
(32°C) or higher.
- In hilly or mountainous terrain.
- When doing frequent trailer towing.
- Uses such as found in taxi, police or
delivery service.
Ifyou do not use your vehicle under any of
these conditions, the fluid andjilter do not
require changing.
Manual transmission fluid doesn’t require change.
0 Inspect Positive Crankcase Ventilation
(Pcv) valve.
An Emission Control Service.
7-31