coolant temperature PONTIAC BONNEVILLE 1993 Owners Manual

r
These symbols are on some of your
controls:
Windshield Wipers
Windshield Washer
Headlight Washers
Windshield Defroster
Rear Window Defogger
Q@
Ventilating Fan
Power Window
These symbols are used on warning and
indicator lights:
L
I
a
Engine Coolant Temperature
Battery Charging System
Fuel
Engine
Oil Pressure
Brake
Anti-Lock Brakes
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Engine Coolant Temperature Warning Light
This light tells you that your engine
coolant has overheated
or your radiator
cooling fans are
not working. If you
have been operating your vehicle under
normal driving conditions, you should
pull off the road, stop your vehicle and
turn the engine
off as soon as possible.
HOT
COOLANT CAN BURN YOU
BADLY!
In Problems on the Road, this
manual shows what to do. See the
Index
under Engine Overheating.
Some clusters with gages do not have a
coolant temperature warning light.
In
those clusters a CHECK GAGES
warning light will alert you of a
potential coolant heating problem.
Low Coolant Warning light
(OPT/ON)
If this light comes on, your system may
be low
on coolant and the engine may
overheat. Check to see
if the level is
low, and add coolant if necessary. See
the
Index under Engine Coolant.
The LOW COOLANT warning light
will also come on when
you turn on the
ignition, but your engine is not running,
as a check to show you it is working.
If
it doesn’t come on then, have it fixed
right away.
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..I
.
Features & Controls
Id
Traction Control System Warning
Light (CONT.)
108
rn Gages
Your Pontiac may have many of the
following gages. Be sure to read about
the ones that came with your vehicle.
Check Gage5 Warning Light
(OPTION)
This light will come on briefly when
you
are starting the engine. If the light
comes
on and stays on while you are
driving, check your gages for fuel,
coolant temperature,
oil pressure or
voltage.
This light will stay on if your
engine
is not running.
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Fuel Gage
You will either have this fuel gage or
one very similar. Your fuel gage tells
you about how much fuel you have left,
when
the ignition is on. When the gage
reads in the yellow band, a warning
chime will sound and the
CHECK
GAGES warning light will go on, if you
have it.
Here are five things that some owners
ask about. None of these show a
problem with your fuel gage:
At the gas station, the gas pump shuts
off before the gage reads
F (Full).
It takes a little more or less fuel to fill
up than the gage indicated. For
example, the gage may have indicated
the
tank was half full, but it actually
took a little more or less than half the
tank's capacity to fill the tank.
The gage moves a little when you turn
a corner or speed up.
The gage doesn't go back to E (Empty)
when you turn off the ignition.
If you have the large span (220") gage,
the needle moves more for a given
amount
of fuel. This does not indicate
excessive fuel consumption, and is
normal.
For your fuel
tank capacity, see Sewice
Station Informution
on the last page of
this manual.
Engine Coolant Temperature
Gage
(OPTION)
A coolant temperature gage shows the
engine coolant temperature.
If the gage pointer moves into the red
warning area, your engine is too hot!
The
CHECK GAGES light will go on
and a warning chime will sound, if you
have this option. It means that your
engine coolant has overheated. If you
have been operating your vehicle under
normal driving conditions, you should
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 shows what to do. See the
Index
under Engine Overheating.
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Boost Gage (OPTION)
Vehicles equipped with the supercharged
engine have this boost gage that indicates vacuum during light to
moderate throttle and boost under
heavier throttle. The gage displays the
air pressure level
in psi going into the
engine’s combustion chamber.
The gage is automatically centered at
zero psi
every time the engine is started.
Actual vacuum or boost
is displayed
from this zero point. Changes
in
ambient pressure, such as driving in
mountains and changing weather, will slightly change
the zero reading.
I
rn Driver Znformation Center
If you have the Driver Information
Center, it gives you important safety and
maintenance facts. When you turn the ignition on, the entire Center lights up
for a few seconds. Then it goes to work.
FUNCTION MONITOR: This lets you
know if you are low
on fluids or have a
problem with a vehicle function:
CHECK OIL LEVEL: This message
could mean your oil level is low. If
it
comes on for more than three seconds, see
the Index under Check Oil Level
Warning Light.
WASHER FLUID: This message
means your washer fluid tank is less
than
30% full. The windshield portion
of the vehicle outline will also glow. If
these come on, see the
Index under
Windshield Washer Fluid.
means your coolant level has fallen to
about half full. If it comes on,
see the
Index under Engine Coolant.
CHECK GAGES: If this light comes
on and stays on while
you are driving,
check your gages for fuel, coolant
temperature, oil pressure or battery
voltage.
LOW COOLANT This message
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Features & Controls
pH2119
Head-Up Display (omorq
If you have the optional Head-Up
Display (HUD), you can see the
speedometer reading in English or
metric units displayed “through” the
windshield.
The HUD
also shows:
Turn signal indicator lights.
A high beam indicator symbol.
A CHECK GAGES message. (For
low oil pressure, high coolant
temperature, low oil level and low
fuel .)
A low fuel warning symbol.
The HUD shows these lights when they
are lit
on the instrument panel.
... 116
When you sit straight in your seat, the
HUD image will appear slightly to the
right in front
of the driver.
When the ignition is turned
to Run, all
possible HUD images will come on as
shown above. Then the Head-Up
Display will operate normally.
14
NOTEE
Although the HUD image appears
to be near the front
of the vehicle,
do not use it as a parking aid. The
HUD was not designed
for that
purpose.
If you try to use it that
way, such as in a parking lot,
you
may misjudge distance and run into
something.
If you never look at your
b instrument panel, you may not
see something important, such as a
warning light. So be sure to scan
your displays and controls and the
driving environment just
as you
would in a vehicle without
HUD.
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I' Problems on the Road
Engine Overheating
You will find a coolant temperature gage
or the warning light about a hot engine
on your Pontiac's instrument panel. See
the
Index under Coolant Temperature
Gage
and Coolant Temperature Warning
Light.
202
If your engine catches fire because
you keep driving with no coolant,
your vehicle can be badly
damaged. The costly repai
not be covered
by your warranty.
' Steam is Coming from Your Engine:
Steam from an overheated
, engine can burn you badly,
even
if you just open the hood. Stay
away hm the engine if you see or
hear steam coming from it. Just
turn it off and get everyone away
from the vehicle until itmols down.
Wait until there is no sign of steam
or coolant before opening the hood.
If you keep driving when your
engine is overheated, the liquids in
it can catch fm You or-others
could be badly burned. Stop your
engine if it wetheats, and get out
of the vehicle until the engine is
cool.
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Service & Appearance Care
Automatic Transaxle Fluid (CONTJ
How to Add Fluid:
Refer to the Maintenance Schedule to
determine what kind
of transaxle fluid to
use. See the
Index under Fluids &
Lubricants.
If the fluid level is low, add only enough
of the proper fluid to bring
the level up
into the cross-hatched area on the
dipstick. It doesn't take much fluid,
generally less than a pint
(0.5 L). Don't
overfill. We recommend that you use
only fluid labeled DEXRON@-IIE,
because fluids with that label are made
especially for your automatic transaxle.
Damage caused by fluid other than
DEXRON@-IIE is not covered by your
new vehicle warranty. After adding
fluid, recheck the fluid
level as described under
How to Check.
When the correct fluid level is obtained,
push the dipstick back
in all the way.
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 the Index under
Engine Overheating.
The proper coolant for your Pontiac
will:
Give freezing protection down to
Give boiling protection up to 262°F
Protect against rust and corrosion.
-34°F (-37°C).
(128" C).
Help keep the proper engine
temperature.
a
Let the warning lights work as they
should.
I.. 238
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Add coolant mix at the recovery tank,
but be careful not to spill it.
I "-" ""IW
You can be burned if you spill
L 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. I
Radiator Pressure Cap I Thermostat
1,. Your radiator pressure cap is a 15 psi (105 kPa) pressure-type cap and
must be tightly installed
to prevent
coolant
loss and possible engine i.
damage from overheating. Be sure
the arrows on the cap line up with
the overflow tube on the radiator
..
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
coolant reaches a preset temperature.
When you replace your thermostat, an
AC@ thermostat
is recommended.
When you replace your radiator pressure
cap, an AC@ cap is recommended.
241
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ITEM
NO. SERVICE
5 Engine Accessory Drive Belt Inspection*-
Inspect the belt for cracks, fraying, wear and
proper tension. Replace as needed.
6 Cooling System Service*-Drain, flush and refill
the system with new or approved recycled coolant
conforming
to GM Specification 1825M. Keep
coolant at the proper mixture as specified. See the
Index under Coolant. This provides proper freeze
protection, corrosion inhibitor level and engine
operating temperature.
Inspect hoses and replace if they are cracked,
swollen or deteriorated. Tighten screw-type hose
clamps. Clean the outside of the radiator and air
conditioning condenser. Wash the pressure cap and
neck.
To help ensure proper operation, we recommend a
pressure test
of both the cooling system and the
pressure cap.
ITEM
NO. SERVICE
7 Transaxle Service-Change both the fluid and
filter every
15,000 miles (25 000 km) if the vehicle
is mainly driven under one or more of these
conditions:
In heavy city traffic where the outside tem-
In hilly or mountainous terrain.
When doing frequent trailer towing.
Uses such as found in taxi, police car or delivery
If you
do not use your vehicle under any of
these .conditions, change both the fluid and filter
every
100,000 miles (160 000 km).
with the proper type. See the Index under
Replacement Parts.
perature regularly reaches 90°F (32OC) or higher.
service.
8 Spark Plug Replacement*-Replace spark plugs
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