1994 PONTIAC GRAND-AM engine overheat

How to Use This Manual
It
Using Your 1994 Pontiac
Owner’s Manual
I‘
Many people read their owner’s manual
from beginning
to end when they first
receive their new vehicle. This will help
you learn about the features and controls
for your vehicle. In this manual, you’ll
find that pictures and words work
together to explain things quickly.
There are nine parts with black-tabbed
pages
in this manual. Each part begins
with a brief list of contents, so you can
usually tell at a glance
if that part
contains the information you want.
You can bend the manual slightly to reveal
the black tabs that help you find a part.
I
Part 1: Seats & Restraint Systems
This part tells you how to use your seats
and safety belts properly. It also explains
the
“SRS” (Air Bag) System.
Part 2: Features & Controls
This part,explains how to start and
operate your Pontiac.
Part 3: Comfort Controls & Audio
Systems
This part tells you how to adjust the
ventilation and comfort controls and how
to operate your sound system.
Part 4: Your Driving and the Road
Here you’ll find helpful information and
tips about
the road and how to drive
under different conditions.
Part 5: Problems on the Road
This part tells you what to do if you have
a problem while driving, such as a flat tire
or engine overheating, etc.
Part 6: Service & Appearance Care
Here the manual tells you how to keep
your Pontiac running properly and
looking good.
Part 7: Maintenance Schedule
This part tells you when to perform
vehicle maintenance and what fluids and
lubricants to use.
Part 8: Customer Assistance
Information
This part tells you how to contact Pontiac
for assistance and how to get service
publications. It
also gives you information
on “Reporting Safety Defects’’ on
page 247.
Part 9: Index
Here’s an alphabetical listing of almost
?very subject
in this manual. You can use it
to quickly find something you want to read.
Service Station Information
This is a quick reference of service
information.
You can find it on the last
page of this manual.
3.. .
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Features & Controls
Fuel Gage (CONT.)
0 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.
0 The gage moves a little when you turn
a corner or speed up.
0 The gage doesn’t go back to “E” when
you turn off the ignition.
For your fuel tank capacity, see “Service
Station Information”
on the last page of
this manual.
Engine Coolant Temperature Warning
Light
This light tells you that your engine
coolant has overheated or your radiator
cooling fan is 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 “Engine
Overheating” in the Index.
Engine Coolant
Temperature Gage
This gage shows the engine coolant
temperature. If the gage pointer moves
into the red area, your engine is too hot!
That reading means the same thing as the
warning light. 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 “Engine
Overheating” in the Index.
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1 Driving On Grades
Reduce speed and shift to a lower gear
before you start down a long or steep
downgrade. If you don’t shift down,
you
might have to use your brakes so much
that they would get hot and no longer
work well.
On a long uphill grade, use the highest
gear possible. If you cannot maintain
posted speeds, driving at a lower speed
may help avoid overheating your engine
and transaxle.
If you have a manual transaxle with fifth
gear, it’s better not to use fifth gear. Just
drive
in fourth gear (or, as you need to, a
lower gear).
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 transaxle.
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 to PARK
(P), or REVERSE (R)
for a manual transaxle.
5. Release the regular brakes.
When You Are Ready to Leave After
Parking
on a Hill
1. Apply your regular brakes and hold
the pedal down while you:
Start your engine;
Shift into a gear; and
Release the parking brake.
2. Let up on the brake pedal.
3. Drive slowly until the trailer is clear
of the chocks.
4. Stop and have someone pick up and
store the chocks.
145...
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Here you’ll find what to do about
some problems that can occur on the
road .
Problems on the
Part 5
Road
Hazard Warning Flashers ............................................
Jumpstarting .....................................................
TowingYourPontiac ...............................................
Engine Overheating ................................................
If Steam is Coming From Your Engine .................................
If a Tire Goes Flat .................................................
ChangingaFlatTire ................................................
Compactspare ....................................................
If You’re Stuck: In Sand, Mud, Ice or Snow .............................
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148
152
156
156
161
162
167
167
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Problems on the Road
Towing from the
Rear-Vehicle
Hook-Up
(CONT.)
Attach a separate safety chain to each side
of the axle inboard of the spring.
Engine Overheating
You will find a coolant temperature gage
or the warning light about a hot engine on
your Pontiac’s instrument panel. See
“Coolant Temperature Gage” and
“Coolant Temperature Warning Light”; in
the Index. You will also find
a low
coolant warning light
on your Pontiac’s
instrument 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.
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If No Steam 1s Coming
From Your Engine
If you get the overheat warning but see or
hear no steam, the problem may not be
too serious. Sometimes the engine can get
a little too hot when you:
0 Climb a long hill on a hot day.
0 Stop after high speed driving.
0 Idle for long periods in traffic.
Tow a trailer.
[f you get the overheat warning with no
sign of steam, try this for a minute or so:
1. If you have an air conditioner, turn it
off.
2. Turn on your heater to full hot at the
highest fan speed and open the
window as necessary.
3. Try to keep your engine under load (in
a drive gear where the engine runs
slower).
If you no longer have the overheat
warning,
you can drive. Just to be safe,
drive slower for about ten minutes.
If the
warning doesn't come back on, you can
drive normally.
If the warning continues, pull over, stop,
and park your vehicle right away.
[f there's still no sign of steam, you can
idle the engine for two or three minutes
while you're parked, to see
if the warning
stops. But then, if you still have the
warning, TURN
OFF THE ENGINE
4ND GET EVERYONE OUT
OF THE
VEHICLE until it cools down.
You may decide not to lift the hood but to
get service help right away.
Cooling System
When you decide it's safe to lift the hood,
here's what you'll see:
(A) Coolant surge tank with pressure cap
(B) Electric engine fan ii" , I .. i I. i. 4:. .;I'
.r': 5.
157...
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Problems on the Road
1 Cooling System (CONK)
If the coolant inside the coolant surge
tank is boiling, don’t do anything else
until it cools down. The coolant level should be at or above
FULL COLD. If it isn’t, you may have a
leak in the radiator hoses, heater hoses,
radiator, water pump or somewhere else
in the cooling system. ~~~
NOTICE:
Engine
damage from running your
engine without coolant isn’t covered
by your warranty.
If there seems to be no leak, check to see
if the electric engine fan is running. If the
engine is overheating, the fan should be
running. If it isn’t, your vehicle needs
service.
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Service & Appearance Care
How to Check:
The proper fluid should be added if the
level is at or below the STEP mark on the
reservoir cap. See the instructions on the
reservoir cap.
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 Pontiac will:
Give freezing protection down to
-34°F (-37°C).
Give boiling protection up to 262°F
( 128 “C).
Protect against rust and corrosion.
Help keep the proper engine
temperature.
Let the warning lights 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
1825-M,” which won’t damage aluminum
parts.
You can also use a recycled coolant
conforming to GM Specification 1825-M
with a complete coolant flush and refill. If
you use this mixture, you don’t need to
add anything else. 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.
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