engine overheat PONTIAC GRAND PRIX 1998 Owners Manual

The 1998 Pontiac Grand Prix Owner’s Manual
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Seats and Restraint Systems
This section tells you how to use your seats and safety belts properly. It also explains \
the “SRS” system.
Features and Controls
This section explains how to start and operate your vehicle.
Comfort Controls and Audio Systems
This section tells you how to adjust the ventilation and comfort controls and how to operate \
your audio system.
Your Driving and the Road
Here you’ll find helpful information and tips about the road\
and how to drive under different conditions.
Problems on the Road
This section tells what to do if you have a problem while driving, such as a flat tire or overheated engine, etc.
Service and Appearance Care
Here the manual tells you how to keep your vehicle running properly and looking good.
Maintenance Schedule
This section tells you when to perform vehicle maintenance and what fluids and lubrica\
nts to use.
Customer Assistance Information
This section tells you how to contact Pontiac for assistance and how to get service and owner publications.
It also gives you information on “Reporting Safety Defects” on page
8-10.
Index
Here’s an alphabetical listing of almost every subject in this manual. You can use it to quickly find
something you want to read.
i

Engine Coolant Heater (If Equipped)
6
In very cold weather, 0 OF (- 18 O C) or colder, the engine
coolant heater
can help. You'll get easier starting and
better fuel economy during engine warm-up. Usually,
the coolant heater should be plugged in a minimum of
four hours prior to starting your vehicle.
To Use the Engine Coolant Heater
1. Turn off the engine.
2. Open the hood and unwrap the electrical cord. The
cord is located below the
air cleaner near the coolant
reservoir bottle.
3. Plug it into a normal, grounded 1 10-volt AC outlet.
I
A CAUTION:
-
Plugging the cord into an ungrounded outlet
could cause an electrical shock. Also, the wrong
kind
of extension cord could overheat and cause
a fire. You could be seriously injured. Plug the
cord into a properly grounded three-prong
110-volt
AC outlet. If the cord won't reach, use a
heavy-duty three-prong extension cord rated for
at least
15 amps.
4. Before starting the engine, be sure to unplug and store
the cord as it was before to keep it away from moving
engine parts. If you don't, it could be damaged.
2-20

SECOND (2): This position gives you more power, but
lower fuel economy. You can use
SECOND (2) on hills.
It can help control your speed as you go down steep
mountain roads, but then you would also want
to use
your brakes off and
on.
NOTICE:
.
Don’t drive in SECOND (2) for more than
25 miles (40 km) at speeds over 55 mph
(88 km/h), or you can damage your transaxle.
Use AUTOMATIC OVERDRIVE (D) or
THIRD (3) as much as possible.
Don’t shift into
SECOND (2) unless you are going
slower than
65 mph (105 km/h), or you can
damage your engine. FIRST
(1): This position gives you even more power,
but lower fuel economy than
SECOND (2). You can use
it
on very steep hills, or in deep snow or mud. If the shift
lever is put in FIRST (1)’ the transaxle won’t shift into
first gear until the vehicle is going slowly enough.
NOTICE:
If your front wheels can’t rotate, don’t try to
drive. This might happen
if you were stuck in
very deep sand or mud or were up against a solid
object. You could damage your transaxle.
Also, if you stop when going uphill, don’t hold
your vehicle there with only the accelerator
pedal. This could overheat and damage the
transaxle. Use your brakes or shift into
PARK (P)
to hold your vehicle in position on a hill.
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I NOTICE:
~ ~ ~
Driving with the parking brake on can cause
your rear brakes to overheat. You may have to
replace them, and you could also damage other
parts of your vehicle.
If you are towing a trailer and parking on any hill, see
“Towing a Trailer”
in the Index. That section shows
what to do first to keep the trailer from moving.
Shifting Into PARK (P)
A CAUTION:
It can be dangerous to get out of your vehicle if
the shift lever is not fully in
PARK (P) with the
parking brake
firmly set. Your vehicle can roll. If
you have left the engine running, the vehicle can
move suddenly. You or others could be injured.
To be sure your vehicle won’t move, even when
you’re on fairly level ground, use the steps that
follow.
If you’re pulling a trailer, see “Towing a
Trailer” in the Index.

Console Shift
1. Hold the brake pedal down with your right foot and
2. Move the shift lever into PARK (P) position
set
the parking brake.
like this:

0 Hold in the button, located on the front of the
0 Push the shift knob all the way toward the front
shift
knob.
of your vehicle.
3. Turn the ignition key to LOCK.
4. Remove the key and take
it with you. If you can
leave
your vehicle with the ignition key in your
hand,
your vehicle is in PARK (P).
Leaving Your Vehicle With the
Engine Running
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1
A CAUTION:
It can be dangerous to leave your vehicle with the
engine running. Your vehicle could move
suddenly if the shift lever is not fully
in PARK (P)
with the parking brake firmly set. And, if you
leave the vehicle with the engine running, it could
overheat and even catch fire. You or others could
be injured. Don’t leave your vehicle with the
engine running unless you have to.
2-29

Anti-Lock Brake System Warning Light
With the anti-lock brake system, this light will
come on when you start your engine and it will
stay on for three seconds.
That’s normal.
If the anti-lock brake system warning light stays on
longer than normal after you’ve started your engine, turn
the ignition
off. Or, if the light comes on and stays on
when you’re driving, stop as soon as possible and turn
the ignition off. Then start the engine again to reset the
system.
If the light still stays on, or comes on again
while you’re driving, your vehicle needs service. If the
light is on and the regular brake system warning light
isn’t on, you still have brakes, but you don’t have
anti-lock brakes. Adjust your driving accordingly.
The anti-lock brake system warning light should come
on briefly when you turn the ignition key to
RUN. If the
light doesn’t come on then, have
it fixed so it will be
ready to warn you if there is a problem.
Traction Control System Warning Light
(3800 Supercharged Engine Only)
1
The traction control system
warning light may come
on
for the following reasons: TCS
OFF
0
0
If you turn the system off by pressing the TCS button
located on
the far right hand side of the Driver
Information Center, the warning light
will come on and
stay on. To turn the system back on, press the button
again. The warning light should go
off. (See “Traction
Control System”
in the Index for more information.)
If there’s a brake system problem that is specifically
related to traction control, the traction control system will turn
off and the warning light will come on. If
your brakes begin to overheat, the traction control
system will turn
off and the warning light will come
on until your brakes cool down.
If
the traction control system warning light comes on
and stays on for an extended period of time when
the
system is turned on, your vehicle needs service.
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The oil level monitoring system only checks oil level during the brief period between key on and engine
crank. It
does not monitor engine oil level when the
engine is running. Additionally, an oil level check is
only performed if the engine has been turned
off for a
considerable period of time, allowing the oil normally in
circulation to drain back into the oil pan.
Engine Coolant Temperature Light
TEMP
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
off the engine as soon as possible.
In “Problems on the Road,” this manual shows what to
do. See “Engine Overheating” in the Index.
Engine Coolant Temperature Gage
You have a gage that shows
the engine coolant
temperature. If the gage
pointer moves into
the red
area, your engine is too hot!
That reading means the sarne 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.
In “Problems on the Road,”
this manual shows what to
do. See “Engine Overheating” in the Index.
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Low Coolant Warning Light
If this light comes on,
LOW
your system is low on
coolant and the engine
COOLANT
may overheat.
See “Engine Coolant” in the Index and have your
vehicle serviced as soon
as you can.
Low Washer Fluid Warning Light
This light will come on
when your ignition is on
and the fluid container
LOW
I is low.
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NOTICE:
Remember, driving without washer fluid can be
dangerous.
A bad mud splash can block your
vision. You could collide with another vehicle.
Check your washer fluid often, and add only the
proper fluid. See “Windshield Washer Fluid” in
the Index.
Trunk Ajar Warning Light
This light will come on if
your trunk is not
completely closed.
AJAR
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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, shift down and reduce your
speed to around
45 mph (70 km/h) to reduce the
possibility of engine and transaxle overheating.
If you have overdrive, you may want to drive in
THIRD (3), instead of DRIVE (D).
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
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).
5. Release the regular brakes. PARK (P) yet.
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When You Are Ready to Leave After
Parking on
a Hill
1. Apply your regular brakes and hold the pedal down
while you:
0 Start your engine;
0 Shift into a gear; and
0 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.
Maintenance When Trailer Towing
Your vehicle will need service more often when you’re
pulling a trailer. See the Maintenance Schedule for more
on
this. Things that are especially important in trailer
operation are automatic transaxle fluid (don’t overfill),
engine oil,
drive belts, cooling system and brake
adjustment. Each
of these is covered in this manual, and
the Index will help you find them quickly. If you’re
trailering, it’s a good idea to review
this information
before you
start your trip.
Check periodically to see that all hitch nuts and bolts
are tight.
Engine Cooling When Trailer Towing
Your cooling system may temporarily overheat during
severe operating conditions. See “Engine Overheating”
in the Index.
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