coolant temperature CHEVROLET BLAZER 1995 2.G Owners Manual

Downloaded from www.Manualslib.com manuals search engine These symbols are used on warning and indicator lights:
Engine Coolant
Temperature
I BRAKE
Brake
Battery Charging
System
1
Fuel
SHIFT
Shift Light
1 ANTI-LOCK
I
Anti-Lock Brake
Here are some other symbols you may see:
Fuse Lighter
I-
I-
Horn
L
Engine Oil Pressure
Hood
Release
Vlll ...

Downloaded from www.Manualslib.com manuals search engine Charging System Light
The red charging
system light is above
your oil temperature
gage on your
instrument cluster and
will come on briefly
when
you turn on the
ignition,
but the
engine
is not running,
as a check to show
you
it is working.
It should go out once the engine is running. If it stays
on, or comes on while
you are driving, you may have a problem with the charging system. It could
indicate that you have problems with a generator drive belt, or another
electrical problem. Have it checked right away. Driving while t\
his light is on
could drain your battery.
If you must drive a short distance with the light on, be certain to turn off all
your accessories, such as the radio and air conditioner.
Check Gages Light
CHECK
GAGES
This amber CHECK
GAGES light is above
the
fuel gage on the
instrument cluster and
will come on briefly
when you are starting
the engine.
If the light comes on and stays on while you are driving, check your coolant
temperature and engine oil pressure gages to see
if they are in the warning
zones.
2-74

Downloaded from www.Manualslib.com manuals search engine Gages
Engine Coolant Temperature Gage
I
210
0
rc E- -
This gage shows the
engine coolant
temperature.
If the
gage pointer moves into the red area, your
engine
is too hot!
It means that your engine coolant has overheated. If you have bee\
n
operating your vehicle under normal driving conditions, you shou\
ld pull off
the road, stop your vehicle and turn
off the engine as soon as possible.
Hot Coolant Can Burn you Badly! In Problems On The Road, this manual
explains what to do. See “Engine Overheating” in the Index.
Oil Pressure Gage
40
The oil pressure gage
shows the engine oil
pressure in psi (pounds per square
inch) when the engine
is running. Canadian
vehicles indicate
pressure in kPa (kilopascals).
Oil pressure may vary with engine speed, outside temperature and oil
viscosity, but readings above the low pressure zone indicate the normal
operating range.
A reading in the low pressure zone may be caused by a dangerously low oil
level or other problems causing low oil pressure.
2-77

Downloaded from www.Manualslib.com manuals search engine The upper knob changes the air temperature. Turn the knob clockwise for
warmer air. Turn the knob counterclockwise for cooler air.
The lower knob selects the heater
or air conditioning function and
determines which outlets the air will flow through (instrument panel,
defroster, heater, etc
.).
OFF - This setting turns off all heating functions. Some outside air will
still come
out of the heater outlet whenever the vehicle is moving forward.
MAX A/C - Air inside your vehicle is recirculated to maximize your air
conditioner’s performance and your vehicle’s fuel economy. This setting
cools the air the fastest and should be used to keep “unwanted odors” and/or
dust from entering the vehicle.
NORM A/C - This setting cools outside air and directs it through the
instrument panel vents. This setting is useful for normal cooling on hot
days.
BI-LEV A/C
- Air is delivered through the heater floor vents as well as
the instrument panel vents. This setting is useful in cool weather with bright
sunlight.
VENT
- Airflow is through the instrument panel vents. Set the upper knob
to the temperature desired. This setting
is useful for mild outside
temperatures, when little heating or cooling is desired. The air conditioner
does not run.
HEAT
- Heated air comes out through the heater floor vents and
windshield defroster vents. This setting is useful for cold weather.
BLEND
- Airflow is divided equally between the heater floor vent and the
windshield defroster vents. This setting is useful in cool weather when you
have fog or ice on the windshield or side windows.
DEF - This setting directs most air through the windshield defroster vents
and some through the heater vents. This setting is useful when you have fog
or ice on the windshield.
Engine Coolant Heater (Option)
If you use the optional engine coolant heater before starting your engine,
your heating system will produce warmer air faster, to heat the passenger
compartment in cold weather. See “Engine Coolant Heater” in the Index.
3-2

Downloaded from www.Manualslib.com manuals search engine When towing at high altitude on steep uphill grades, consider the following:
Engine coolant will boil at a lower temperature than at normal\
altitudes.
If
you turn your engine off immediately after towing at high altitude on steep
uphill grades, your vehicle may show signs similar
to engine overheating.
To avoid this,
let the engine run while parked (preferably on level ground)
with the automatic transmission in PARK
(P) (or the manual transmission
out of gear and the parking brake applied) for a few minutes before turni\
ng
the engine off. If
you do get the overheat warning, see “Engine
Overheating” in the Index.
Parking on Hills
You really should not park your vehicle, with a trailer attached, \
on a hill. If
something goes wrong, your rig could start
to move. People can be injured,
and both your vehicle and the trailer can be damaged.
But if you ever have
to park your rig on a hill, here’s how to do it:
1. Apply your regular brakes, but don’t shift into PARK (P)
yet, or into
gear for a manual transmission. Then turn your wheels into the curb if \
facing downhill or into traffic if facing uphill.
2. Have someone place chocks under the trailer wheels.
3. When the wheel chocks are in place, release the regular brakes\
until the
chocks absorb the load.
4. Reapply the regular brakes. Then apply your parking brake, and \
then
shift into PARK (P), or REVERSE
(R) for a manual transmission.
5. If you have a four-wheel-drive vehicle with a manual transfer case
shift lever, be sure
the transfer case is in a drive gear - not in
NEUTRAL
(N).
6. Release the parking brake.
4-46

Downloaded from www.Manualslib.com manuals search engine Engine Overheating
You will find a coolant temperature gage on your vehicle’s instr\
ument
panel.
If Steam Is Coming From Your Engine
NOTICE:
If your engine catches fire because you keep driving with no
coolant, your vehicle can be badly damaged. The costly repairs
would not be covered by your warranty.
5-13

Downloaded from www.Manualslib.com manuals search engine 1
6. Start the engine
and let it
run until
you can feel'the
upper radiator hose getting hot.
Watch out for the
engine fan.
7. By this time the coolant level inside the filler neck may be lower. If the
level is lower, add more of the proper mix through the filler neck unt\
il
the level reaches the base of the filler neck.
8. Then replace the
pressure cap. At
any time during
this procedure if
coolant begins to
flow out of the
filler neck,
reinstall the
pressure cap. Be
sure the arrows
on the pressure
cap line
up like
this.
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 tow\
ing 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.
5-20

Downloaded from www.Manualslib.com manuals search engine How to Check Lubricant
,:
If the level is below
the bottom
of the filler
plug hole, you’ll need
to add some lubricant.
If the differential
is at operating temperature (warm), add enough lubricant
to raise the level to the bottom of the filler plug hole.
If the differential is cold, add enough lubricant to raise the le\
vel to 1/2 inch
(12 mm) below the filler plug hole.
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 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.
The proper coolant
for your vehicle will:
0 Give freezing protection down to -34°F (-37°C).
Give boiling protection up to 262°F (128°C).
0 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 one-half clean water (preferably distilled) and one-half
antifreeze that meets “GM Specification 6038-M,” which won’t damage
aluminum parts.
You can also use a recycled coolant conforming to “GM
Specification 6038-M.
Use GM Coolant Supplement (Sealer) with a
complete coolant flush and refill. If
you use this mixture, you don’t need to
add anything else.
6-21

Downloaded from www.Manualslib.com manuals search engine Radiator Pressure Cap
NOTICE:
Your radiator cap is a 15 psi (105 kPa) pressure-type cap and
must be tightly installed to prevent coolant loss and possible \
engine damage from overheating. Be sure the arrows on the cap \
line up with the overflow tube on the radiator filler neck.
When you replace your radiator pressure
cap, a
GM cap is
recommended. See
“Service Replacement
Part and Filter
Recommendations” in
the Index.
Thermostat
Engine coolant temperature is controlled by a thermostat in the engine
coolant system. The thermostat stops the
flow of coolant through the
radiator until the co6lant reaches a preset temperature.
When you replace your thermostat, an
AC@ thermostat is recommended.
6-24

Downloaded from www.Manualslib.com manuals search engine Cruise Control (continued)
ToResume
.................................................. 24
ToSet ...................................................... 2-43
Cupholder ...................................................... 2-56
Customer Assistance for the Hearing or Speech Impaired ................. 8-3
Customer Assistance Information .................................... 8-1
Customer Satisfaction Procedure
..................................... 8-1
Daytime Running Lamps
.......................................... 2-49
Differential (See “Axle”)
Doors
.......................................................... 2-3
Child Security Locks ............................................ 2-6
Lokks ........................................................ 2-4
PowerDoorLocks ............................................. 2-5
SideDoors
.................................................. 2-3
Drive Axle (See “Axle”)
Driving
AtNight
.................................................... 4-24
City ........................................................ 4-27
Defensive .................................................... 4-1
Freeway
..................................................... 4-28
Guidelines
................................................... 4-12
Hill and Mountain Roads
....................................... 4-30
Highway Hypnosis ............................................ 4-29
If You’re Caught in a Blizzard ................................... 4-34
In Mud. Sand. Snow. Or Ice ................................ 4-22. 5-35
IntheRain ................................................... 4-25
Loss of Control ............................................... 4-11
Nightvision ................................................. 4-24
Off-Road Driving with Your Four-wheel Drive Vehicle .............. 4-12
Before You Go Off-Roading
.................................. 4-12
After Off-Road Driving ...................................... 4-23
Passing
...................................................... 4-9
Through Deep Standing Water ................................... 2-18
Winter ...................................................... 4-32
DrunkenDriving ................................................. 4-2
Electrical System
Add-On Equipment
........................................... 6-60
Endgate ........................................................ 2-8
Emergency Release ............................................ 2-12
Hatch Release
................................................. 2-8
Mounted Spare Tire Carrier
..................................... 2-11
Adding Coolant .......................................... 5- 13. 6-23
Aircleaner .................................................. 6-13
Coolant Heater ...................................... 2-18.3-2. 6-13
Coolant ..................................................... 6-21
Coolant Temperature Gage (See “Gages”)
Exhaust
..................................................... 2-28
Engine
3