1993 BUICK SKYLARK engine overheat

Table of Contents
How to Use this Manual ................................................................. 10
Seats and Safety Belts
............................ .:. ................................... 13
FeaturesandControls
.................................................................. 61
Comfort Controls and Audio Systems
..................................................... 119
YourDrivingandtheRoad
.............................................................. 137
ProblemsontheRoad
.................................................................. 185
This part tells you how to use your manual and includes safety and vehicle damage warnings & symbols.
This part tells you how
to use your seats and safety belts properly.
This part explains how to start and operate your Buick.
This part tells you how to adjust the ventilation
& comfort controls and how to operate your sound system.
Here you’ll find helpful information and tips about the road and how to drive under different conditions.
This part tells you what to do if you have a problem while driving, such as a flat tire or engine overheating.
Here the manual tells you how to keep your Buick running properly and looking good.
This part tells you when to perform vehicle maintenance and what fluids and lubricants
to use.
This part tells you how to contact Buick for assistance and how to get service publications. It also gives
you information on “Reporting Safety Defects.’’
Here’s an alphabetical listing
of almost every subject in this manual. You can use it to quickly find
something you want to read.
ServiceandAppearanceCare ............................................................ 215
Maintenanceschedule
.................................................................. 265
Customer Assistance Information
........................................................ 285
Index
........................................................................\
........ 293
9

Driving Through Deep Standing
Water
If you drive too quickly through deep puddles 01
standing water, water can come in through
engine’s air intake and badly damage your
engine.
If you can’t avoid deep puddles or
standing water, drive through them very slowly.
Engine Block Heater (Option)
In very cold weather, O°F (-18 “C) or colder, the engine
block heater can help. You’ll get easier starting and
better fuel economy during engine warm-up.
To use the block heater:
1. Turn off the engine.
2. Open the hood and unwrap the electrical cord.
3. Plug it into a normal, grounded 110-volt outlet.
1 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 outlet.
If the cord won’t reach, use a
heavy-duty three-prong extension cord rated for
at least
15 amps.
I
How long should you keep the block heater plugged in?
The answer depends on the weather, the kind of oil you
have, and some other things. Instead
of trying to list
everything here, we ask that you contact a Buick dealer in
the area where you’ll be parking
your vehicle. The dealer
can give you the best advice for that particular area.

Leaving Your Vehicle With the Engine
Running
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 “P”
(Park) with the parking brake firmly set. And,
il
you leave the vehicle with the engine running, it
could overheat and even catch fire. You or others
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could be injured. Don’t leave your vehic ’ wi
the engine running unless you have to.
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If you have to leave your vehicle with the engine
running, be sure your vehicle is in
“P” (Park) and your
parking brake is firmly set before you leave it. After
you’ve moved the shift lever into the
“P” (Park)
position, hold the regular brake pedal down. Then, see if
you can move the shift lever away from “P” (Park)
without first pulling it toward you (or, if you have the
console shift lever, without first pushing the button). If
you can, it means that the shift lever wasn’t fully locked
into
“P” (Park).
Shifting Out of P (Park) 66 99
Your Buick has a brake-transaxle shift interlock. You
have to fully applv your regular brake before
you can
shift
from “P” (Park) when the ignition is in the “Run”
position. See “Automatic Transaxle ” in the Index.
If you cannot shift out of “P” (Park), ease pressure on
the shift lever -- push the shift lever all^ the way into “P”
(Park) and also release the shift lever button on floor
shift console models as you maintain brake application.
Then move the shift lever into the gear you wish. (Press
the shift lever button before moving the
shift lever.) If
you ever hold the brake pedal down but still can’t shift
out of “P” (Park), try this:
1. Turn the key to “Off.”
2. Apply and hold the brake until the end of Step 4.
3. Shift to “N’ (Neutral).
4. Start the vehicle and then shift to the drive gear you
5. Have the vehicle fixed as soon as you can. want.

Low Coolant Warning Light
If this light comes on, your
system is low on coolant
and the engine may
overheat.
Malfunction Indicator Lamp (Service Engine Soon Light)
See “Engine Coolant’’ in the Index and have your
vehicle serviced as
soon as you can. A computer monitors operation of your fuel, ignition
and emission control systems. This light should come on when the ignition is on,
but the engine is not running, as
a check
to show you it is working. If it does not come on
at all, have it fixed right away. If
it stays on, or it comes
on while you are driving, the computkr is indicating that
you have a problem. You should take your vehicle in for
service soon.

Passing
You’ll need more passing distance up ahead when
you’re towing a trailer. And, because you’re a good deal \
longer, you’ll need to go much farther beyond the
passed vehicle before you can return to your lane.
d
Backing Up
Hold the bottom of the steering wheel with one hand.
Then, to move the trailer to the left, just move that hand
to the left. To move the trailer to the right, move your
hand to the right. Always. back up slowly and, if
possible, have someone guide you.
Making Turns
When you’re turning with a trailer, make wider turns
than normal.
Do this so your trailer won’t strike soft
shoulders, curbs, road signs, trees, or other objects.
Avoid jerky or sudden maneuvers. Signal well in
advance.
nrn Signals When Towing a Trailer
When you tow a trailer, your vehicle has to have a
different turn signal flasher and extra wiring. The green
arrows on your instrument panel will flash whenever you signal a turn or lane change. Properly hooked up, the trailer lights will also flash, telling other drivers
you’re about to turn, change lanes or stop.
When towing a trailer, the green arrows on your
instrument panel will flash for turns even if the bulbs on
the trailer are burned out. Thus, you may think drivers
behind you are seeing your signal when they are not. It’s
important to check occasionally to be sure the trailer
bulbs are still working.
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.
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.
183

Part 5 Problems on the Road
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Here you’ll find what to do about some problems that can occur on the road .
Part 5 includes:
Hazard Warning Flashers
............................................................ 186
OtherWarningDevices
............................................................. 187
“Jump”Starting
................................................................... 188
TowingYourBuick
................................................................ 193
Engineoverheating
................................................................ 197
IfaTireGoesFlat
................................................................. 204
ChangingaFlatTire
................................................................ 204
CompactSpareTire
................................................................ 212
If You’re Stuck in Sand, Mud, Ice or Snow
.............................................. 214

11 ,m CAUTION:
Steam from an overheated engine can burn you
badly, even
if you just open the hood. Stay away
from the engine
if you see or hear steam coming
from
it. Just turn it off and get everyone away
from the vehicle
until it cools 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 fire. You or
others could be badly burned. Stop your engine
if it overheats, and get out of the vehicle until the
engine is cool.
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I

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.
If 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 AND 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.
When you decide it’s safe to lift the hood, here’s what \
you’ll see:
0 Coolant surge tank with pressure cap
Electric engine fan
198