engine BUICK RIVIERA 1993 Owner's Manual

Auto
I- - To choose the temperature When the system is set
far
you- want maintained inside automatic, air
will come
the vehicle, press the
TEMP from the floor outlets, the
A or for warmer or instrument panel outlets or
cooler. both. Fan speed will vary
(unless a blower
LO or HI
:.if, button has been pushed) as
the system gets to and
maintains the temperature setting you have selected.
-
,..I . .
a
~
You can choose from 60 OF (1 6 " C), for maximum
1 cooling, and 90' F (33 "C), for maximum heating. It is The display will show the selected temperature and
blower speed.
! not necessary to choose the extreme temperature to get In cold weather the system will delay turning on the
the system to heat
or cool at the maximum. The system
blower, to avoid blowing cold air. The length of the
does it automatically. delay depends
on engine coolant temperature, outside
temperature and time since the engine was last started.
Pushing a
LO or HI blower button will override this
delay, and will turn on the blower.
120

Audio Systems
Your Delco@ audio system has been designed to operate
easily and give years
of listening pleasure. But you will
get the most enjoyment out of it if you acquaint yourself
with it first. Find out what your DelcoQ system can
do
and how to operate all its controls, to be sure you’re
getting the most out of the advanced engineering that
went into it.
FM Stereo
FM stereo will give you the best sound. But FM signals
will reach only about
10 to 40 miles (16 to 65 km). And,
tall buildings or hills can interfere with FM signals,
causing the sound
to come and go.
AM
The range for most AM stations is greater than for FM,
especially at night. The longer range, however, can
cause stations to interfere with each other. AM can pick
up noise from things like storms and power lines. Try
redu
~ --lg the treble to reduce this noise.
AM Stereo
This means the Delcoa system can receive C-QUAM@
stereo broadcasts. Many AM stations around the country
use C-QUAM@ to produce stereo, though some do not.
(C-QUAM@ is
a registered trademark of Motorola, Inc.)
If your Delcoa system can get C-QUAM@, your
STEREO light will come on when you’re receiving it.
I 124 I
! I

Brake Pedal Travel
See your dealer if the brake pedal does not return to
normal height, or if there is a rapid increase in pedal
travel. This could be
a sign of brake trouble.
Brake Adjustment
Every time you make a moderate brake stop, your disc
brakes adjust for wear.
If you rarely make a moderate or heavier stop, then your
brakes might not adjust correctly.
If you drive in that
way, then
-- very carefully -- make a few moderate
brake stops about every
1000 miles ( 1600 km), so your
brakes will adjust properly.
Braking in Emergencies
Use your anti-lock braking system when you need to.
With anti-lock, you can steer and brake at the same time.
In many emergencies, steering can help you more than
even the very best braking.
Steering
Power Steering
If you lose power steering assist because the engine
stops or the system fails to function, you can steer but it
will take much more
effort.
Steering Tips
Driving on Curves
It’s important to take curves at a reasonable speed.
A lot of the “driver lost control” accidents mentioned on
the news happen on curves. Here’s why:
Experienced driver or beginner, each of us is subject to
the same laws of physics when driving on curves. The
traction
of the tires against the road surface makes it
possible for the vehicle to change its path when you turn
the front wheels.
If there’s no traction, inertia will keep
the vehicle going
in the same direction. If you’ve ever
tried to steer a vehicle on wet ice, you’ll understand this.
The traction you can get in a curve depends on the
condition of your tires and the road surface, the angle at
which the curve is banked, and your speed. While
you’re in a curve, speed is the one factor you can
control.
157

much speed or steering in a curve causes tires to slip and
lose cornering force. And in the acceleration skid too
much throttle causes the driving wheels to spin.
A cornering skid and an acceleration skid are best
handled by easing your foot
off the accelerator pedal.
If your vehicle starts to slide (as when you turn a corner
on a wet, snow- or ice-covered road), ease your foot
off
the acceleratorpedal as soon as you feel the vehicle start
to slide. Quickly steer the way you want the vehicle to go. If you
start steering quickly enough, your vehicle
will straighten out.
As it does, straighten the front
wheels.
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 enoughewater, ice or packed snow on the road to make
a “mirrored surface” -- and slow down when you
have any doubt.
Remember: Any anti-lock braking system
(ABS) helps
avoid only the braking skid. Steer the way you want to
go.
Driving at Night
Night driving is more dangerous than day driving. One reason
is that some drivers are likely to be impaired --
162
I

~ Before Leaving on a
Long Trip 0 Weather Forecasts: What’s the weather outlook along
your route? Should
you delay your trip a short time
Make sure you’re ready. Try to be well rested. If you to avoid a major storm system?
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 0 Maps: Do you have up-to-date maps?
I
of the journey. Wear comfortable clothing and shoes you
can easily drive in. On the Road
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 find experienced and able service experts in
Buick 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:
0 Windshield Washer Fluid: Is the reservoir full? Are
all windows clean inside and outside?
0 Wiper Blades: Are they in good shape!
0 Fuel, Engine Oil, Other Fluids: Have you checked all
levels?
0 Lights: Are they all working? Are the lenses clean?
0 Tires: 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? Unless you
are the only driver, it is good to share
the
driving task with others. Limit turns behind the wheel to
about
100 miles (160 km) or two hours at a sitting.
Then, either change drivers or stop for some refreshment
like coffee, tea or soft drinks and some limbering up. But do stop and move around. Eat lightly along the way.
Heavier meals tend to make some people sleepy.
On two-lane highways or undivided multilane highways
that do not have controlled access, you’ll want to watch for some situations not usually found on freeways.
Examples are: stop signs and signals, shopping centers with direct access to the highway, no passing zones and school zones, vehicles turning left and right off the road,
pedestrians, cyclists, parked vehicles. td even animals.
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.
172

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:
0 Make sure your vehicle is well ventilated, with a
comfortably cool interior.
0 Keep your eyes moving. Scan the road ahead and to
the sides. Check your rearview mirrors frequently
and your instruments from time to time. This can
help you avoid a fixed stare.'
Wear good sunglasses in bright light. Glare can
cause drowsiness. But don't wear sunglasses at
night. They will drastically reduce your overall vision at the very time you need all the seeing power
you have.
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.
As in any driving situation, keep pace with traffic and
allow adequate following distances.
Hill and Mountain Roads
Driving on steep hills or mountains is different from
driving in flat or rolling terrain.
'I
173

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.
0 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 thisi let your engine do some of the
slowing down. Don't make your brakes do it all.
Shift to a lower gear when you go down a steep or
long
hill. That way, you will slow down without
excessive use of your brakes.
If you don't shift down, your brakes could get
11 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
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I
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0
/d CAUTION:
Coasting downhill in "N" (Neutral) 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
could crash. Always have your engine running
and your vehicle
in gear -]en you go downhill.
Know how to go uphill. You may want to shift down
to a lower gear. The lower gears help cool
your
engine and transaxle, and you can climb the hill
better.
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. That way, you won't be
surprised by a vehicle coming toward you
in the
same lane.
It takes longer to pass another vehicle when you're going uphill. You'll want
to leave extra room to pass.
If a vehicle is passing you and doesn't have enough
room, slow down to make it easier for the other
vehicle to get by.

bags, rags, floor mats -- anything you can wrap around
yourself or tuck under your clothing to keep warm.
You can run the engine to keep warm, but be careful.
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 was in your
vehicle. Clear away snow from around the ba
!
of your vehicle, especially any that is blocking
your exhaust pipe- And check ar
from time to time to be sure snow
collect there.
Open a window just a little on the side of the
vehicle that’s away from the wind. This
will heir
keep CO out.
I CAUTION: (Continued)
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 headlights. Let the heater run for awhile.
181

I A CAUTION:
u could be injured if the vehicles roll. Set the
arking brake firmly on each vehicle. Put an
utomatic transaxle
in “P” (Park) or a manual
axle
in “N” (Neutral).
P
3. Turn off the ignition on both vehicles. Turn off all
lights that aren’t needed, and radios. This
will avoid
sparks and help save both batteries. And it could
save your radio!
4. Open the hoods and locate the batteries.
I A CAUTION:
An electric fan can start up even when the
engine is not running and can injure you. Keep
hands; clothing and tools away from any
underhood electric fan.
~~
Find the positive .(+) and negetive (-), terminals on
each battery.

A CAUTION:
Using a match near a battery can cause battery
gas to explode. People have been hurt doing
this, and some have been blinded. Use a
flashlight if you need more
light.
Be sure the battery has enough water. You don’t
need to add water to the Delco Freedom@
battery installed
in every new GM vehicle. But if
a battery has filler caps, be sure the right
amount of fluid
is there. If it is low, add water to
take care of that first. If you don’t, explosive gas
could be present.
Battery fluid contains acid that can burn you.
Don’t get
it on you. If you accidentally get it in
your eyes or on your skin, flush the place with
water and get medical help immedia
y.
1 5. Check that theJumper cames don’t have loose wr
missing insulation. If they do, you could get a shock.
The vehicles could be damaged, too. Before
you connect the cables, here are some things
you should know. Positive (+) will go to positive (+)
and negative (-) will go to negative (-) or
a metal
engine part. Don’t connect
(+) to (-) or you’ll get a
short that would damage the batterv and maybe other
parts, too.
A CAUTION:
Fans or other moving engine parts can injure
you badly. Keep your hands away from moving
parts once the engines are
running.
6. Connect the red
positive
(+) cable
to the positive
(+)
terminal of the
vehicle with the
dead battery. Use a
I * ;,* remote positive (+) , . ”, . , ,, ,, terminal if the &&>>;&,3; ,, , ,, ~
vehicle has one.