engine PONTIAC BONNEVILLE 1998 Service Manual

If your vehicle starts to slide, ease your foot off the
accelerator pedal and quickly steer the way you want the
vehicle to go. If you start steering quickly enough, your
vehicle may straighten out. Always be ready for a
second skid if it occurs.
Of course, traction is reduced when water, snow, ice,
gravel or other material is on the road.
For safety, you’ll
want
to slow down and adjust your driving to these
conditions.
It is important to slow down on slippery
surfaces because stopping distance
will be longer and
vehicle control more limited.
While driving on
a surface with reduced traction, try
your best to avoid sudden steering, acceleration or
braking (including engine braking by shifting to a
lower gear). Any sudden changes could cause the tires
to slide. You may not realize the surface is slippery until
your vehicle is skidding. Learn to recognize warning
clues -- such as enough water, ice or packed snow on
the road to make a “mirrored surface”
-- and slow down
when you have any doubt.
Remember: Any anti-lock brake system
(ABS) helps
avoid only the braking skid.
Driving at Night
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Night driving is more dangerous than day driving. One
reason is that some drivers are likely to
be impaired -- by
alcohol or drugs, with night vision problems, or
by fatigue.
4-15

Hydroplaning
Hydroplaning is dangerous. So much water can build up
under your tires that they can actually ride on the water.
This can happen
if the road is wet enough and you’re
going fast enough. When your vehicle is hydroplaning,
it has little or no contact with the road.
Hydroplaning doesn’t happen often. But it can if your
tires do not have much tread or if the pressure in one or
more is low. It can happen if a lot
of water is standing on
the road. If you can see reflections from trees, telephone
poles
or other vehicles, and raindrops “dimple” the
water’s surface, there could be hydroplaning.
Hydroplaning usually happens at higher speeds. There
just
isn’t a hard and fast rule about hydroplaning. The
best advice is to slow down when it is raining.
Driving Through Deep Standing Water
NOTICE:
If you drive too quickly through deep puddles or
standing water, water can come in through your
engine’s air intake and badly damage
your
engine. Never drive through water that is slightly
lower than the underbody of your vehicle. If you
can’t avoid deep puddles
or standing water, drive
through them
very slowly.
Some Other Rainy Weather Tips
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Besides slowing down, allow some extra following
distance. And
be especially careful when you pass
another vehicle. Allow yourself more clear room
ahead, and be prepared
to have your view restricted
by road spray.
Have
good tires with proper tread depth. (See
“Tires” in the Index.)
4-19

The exit speed is usually posted.
Reduce
your speed according to your speedometer, not
to your sense
of motion. After driving for any distance
at higher speeds, you may tend to
think you are going
slower
than you actually are.
Before Leaving on a Long Trip
Make sure you’re ready. Try to be well rested. If you
must
start when you’re not fresh -- such as after a day’s
work
-- don’t plan to make too many miles that first part
of the journey. Wear comfortable clothing and shoes you
can
easily drive in.
Is your vehicle ready for a long trip? If you keep it
serviced and maintained, it’s ready to
go. If it needs
service, have it
done before starting out. Of course,
you’ll fiid experienced and able service experts
in
Pontiac dealerships all across North America. They’ll be
ready and willing to help
if you need it. Here are some things
you can check before a trip:
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Windshield Washer Fluid: Is
the reservoir full? Are
all windows clean inside and outside?
Wper Blades: Are they in good shape?
Fuel, Engine Oil, Other Fluids: Have you checked
all levels?
Lumps: Are they all working? Are the lenses clean?
Zlres: They are vitally important to a safe,
trouble-free trip.
Is the tread good enough for
long-distance driving? Are the
tires all inflated to the
recommended pressure?
Weather Forecasts: What’s the weather outlook
along your route? Should you delay your trip a short
time
to avoid a major storm system?
Maps: Do you have up-to-date maps?
4-22

Highway Hypnosis
Is there actually such a condition as “highway hypnosis”?
Or is it just plain falling asleep at the wheel? Call it
highway hypnosis, lack
of awareness, or whatever.
There is something about an easy stretch
of road with
the same scenery, along with the hum
of the tires on the
road, the drone
of the engine, and the rush of the wind
against the vehicle that can make you sleepy. Don’t let it
happen to you!
If it does, your vehicle can leave the
road in
less than a second, and you could crash and
be injured.
What can you do about highway hypnosis? First, be aware that it can happen.
Then here are some tips:
Make sure your vehicle is well ventilated, with a
comfortably cool interior.
Keep your eyes moving. Scan the road ahead and to
the sides. Check your rearview mirrors and
your
instruments frequently.
0 If you get sleepy, pull off the road into a rest, service
or parking area and take a nap, get some exercise, or
both. For safety, treat drowsiness on the highway as
an emergency.
Hill and Mountain Roads
Driving on steep hills or mountains is different from
driving in flat or rolling terrain.
4-23

If you drive regularly in steep country, or if you’re
planning
to visit there, here are some tips that can make
your
trips safer and more enjoyable.
Keep your vehicle in good shape. Check all fluid
levels and also the brakes, tires, cooling system
and transaxle. These parts can work hard on
mountain roads.
Know how to go down hills. The most important
thing to know is this: let your engine do some of the
slowing down. Shift
to a lower gear when you go
down
a steep or long hill.
A CAUTION:
If you don’t shift down, your brakes could
get
so hot that they wouldn’t work well. You
would then have poor braking or even none going
down a hill. You could crash. Shift down to let
your engine assist your brakes on a steep
downhill slope.
A CAUTION: 4-
I
Coasting downhill in NEUTRAL (N) or with the
ignition
off is dangerous. Your brakes will have to
do all the work of slowing down. They could get so
hot that they wouldn’t work well. You would then
have poor
braking or even none going down a hill.
You could crash. Always have your engine running
and your vehicle in gear when you go downhill.
0 Know how to go uphill. Drive in the highest gear possible.
Stay in your own lane when driving on two-lane
roads in hills or mountains. Don’t swing wide or cut
across the center
of the road. Drive at speeds that let
you stay in your own lane.
As you go over the top of a hill, be alert. There
could be something in your lane, like a stalled car or
an accident.
You may see highway signs on mountains that warn of
special problems. Examples are long grades, passing or
no-passing zones, a falling rocks area or winding
roads.
Be alert to these and take appropriate action.
4-24

0 Tie a red cloth to your vehicle to alert police that
you’ve been stopped by the snow.
Put
on extra clothing or wrap a blanket around you.
If you have no blankets or extra clothing, make body
insulators from newspapers, burlap bags, rags, floor mats
-- anything you can wrap around yourself or
tuck under your clothing
to keep warm.
Snow can trap exhaust gases under your vehicle.
This can cause deadly
CO (carbon monoxide) gas
to get inside.
CO could overcome you and kill
you.
You can’t see it or smell it, so you might not
know it
is in your vehicle. Clear away snow from
around the base of your vehicle, especially any
that is blocking your exhaust pipe. And check
around again from time to time to be sure snow
doesn’t collect there.
Open a window just a little
on the side of the
vehicle that’s
away from the wind. This will help
ieep
co out.
you
can run the engine to keep warm, but be careful.
4-28

Run your engine only as long as you must. This saves fuel. When you run the engine, make it go a little faster
than just idle. That is, push the accelerator slightly. This
uses less fuel for .the heat that you get and it keeps the
battery charged. You will need
a well-charged battery to
restart the vehicle, and possibly for signaling later on
with your headlamps. Let the heater run for a while.
Then, shut the engine
off and close the window almost
all the way to preserve the heat. Start the engine again and repeat this only when you feel really uncomfortable
from the cold. But do
it as little as possible. Preserve the
fuel as long as you can. To help keep warm, you can get
out
of the vehicle and do some fairly vigorous exercises
every half hour
or so until help comes.
Loading Your Vehicle
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TIRE-LOADING INFORMATION
OCCUPANTS
VEHICLE CAP. WT.
FRT. CTR.
RR. TOTAL LBS. KG
MAX. LOADING & GVWR SAME AS VEHICLE
CAPACITY WEIGHT
XXX COLD TIRE
TIRE SIZE SPEED PRESSURE
RTG PSVKPa
FRT.
RR.
SPA.
IF TIRES ARE HOT, ADD 4PS1/28KPa
SEE OWNER'S MANUAL FOR ADDITIONAL
, INFORMATION
Two labels on your vehicle show how much weight it
may properly carry. The Tire-Loading Information label
found on
the rear edge of the driver's door tells you the
proper size, speed rating and recommended inflation
pressures for the tires on your vehicle. It also gives you
important information about the number
of people that
can be in your vehicle and the total weight that you can
carry. This weight is called the vehicle capacity weight
and includes the weight of all occupants, cargo and all
nonfactory-installed options.
4-29

Your vehicle can tow a trailer if it is equipped with the
proper trailer towing equipment. To identify what the
vehicle trailering capacity is for your vehicle, you
should read the information in “Weight
of the Trailer”
that appears later
in this section. But trailering is
different than
just driving your vehicle by itself.
Trailering means changes
in handling, durability and
fuel economy. Successful, safe trailering
takes correct
equipment, and it has to be used properly.
That’s the reason for this part.
In it are many
time-tested, important trailering tips
and safety rules.
Many of these are important for your safety and that
of
your passengers. So please read this section carefully
before you pull a trailer.
Load-pulling components such as the engine, transaxle,
wheel assemblies and tires
are forced to work harder
against the drag of the added weight. The engine is
required to operate at relatively higher speeds and under
greater loads, generating extra heat. What’s more, the
trailer adds considerably to wind resistance, increasing
the pulling requirements.
If You Do Decide To Pull A ’hailer
If you do, here are some important points:
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There are many different laws, including speed limit
restrictions, having to do with trailering. Make sure
your rig will be legal, not only where you live but
also where you’ll be driving.
A good source for this
information can be state or provincial police.
Consider using a sway control.
You can ask a hitch
dealer about sway controls.
Don’t tow a trailer at all during the first
1,000 miles
(1 600 km) your new vehicle is driven. Your engine,
axle or other parts could be damaged.
Then, during the first
500 miles (800 km) that you
tow a trailer, don’t drive over
50 mph (80 km/h) and
don’t make
starts at full throttle. This helps your
engine and other parts of your vehicle wear
in at the
heavier loads.
Obey speed limit restrictions when towing a trailer.
Don’t drive faster than the maximum posted speed
for trailers (or no more than 55 mph (90 M)) to
save wear on your vehicle’s parts.
4-32

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;
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, belt(s), 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 these sections before
you start
your trip.
Check periodically to see that all hitch nuts and bolts
Engine Cooling When Ier Towing
fight.
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Your cooling system may temporarily overheat during
severe operating conditions. See “Engine Overheating”
in the Index.
4-38

Section 5 Problems on the Road
Here you’ll find what to do about some problems that can occur on the road.
5-2
5-3
5-3
5-8
5- 15
Hazard Warning Flashers
Other Warning Devices
Jump Starting Towing Your Vehicle
Engine Overheating 5-17 Cooling System
5-25 Changing a Flat Tire
5-37 Compact Spare Tire
5-25 If a Tire Goes Flat
5-38
If You’re Stuck: In Sand, Mud, Ice or Snow
5-1