1993 BUICK LESABRE check engine

To Check Engine Oil: Pull out the dipstick and clean it
with a paper towel or cloth, then push it back in all the
way. Remove it again, keeping the tip lower.
When to Add Oil: If the oil is at or below the ADD
line, then you’ll need to add some oil. But you must use
the right kind. This section explains what kind of
oil to
use. For crankcase capacity, see “Capacities and
Specifications” in the Index.
1 NOTICE:
Don’t add too much oil. If your engine has so
much oil that the oil level gets above the
cross-hatched area that
shows the proper
operating range, your engine could be damaged.
Use the engine oil fill cap next to the oil dipstick to add
oil.
Just fill it enough to put the level somewhere in the
proper operating range. Push
the dipstick all the way
back
in when you’re through.
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What to Do with Used Oil: Air Cleaner
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A CAUTION:
Used engine oil contains things that have caused
skin cancer
in laboratory animals. Don't let used
oil stay on your skin
for very long. Clean your
skin and nails with soap and water, or a good
hand cleaner. Wash or properly throw away
clothing or rag8
on. Mng used engine oil.
Used oil can be a real threat to the environment. If you
change your own oil, be sure
to drain all free-flowing oil
from the filter before disposal. Don't ever dispose
of oil
by pouring
it on the ground, into sewers, or into streams
or bodies
of water. Instead, recycle it by taking it to a
place that collects used oil. If you have a problem
properly disposing of your used oil, ask your dealer, a
service station or a local recycling center for help.
r
The air cleaner and filter are located on the driver's side
of the engine compartment. To check or replace the
filter, undo the wing screws and pull the air cleaner
open. Replace the filter,
then close the cover and tighten
the wing screws.

Refer to the Maintenance Schedule to determine when
to replace the air filter.
See “Scheduled Maintenance Services” in the Index.
A CAUTION:
Operating the engine with the air cleaner off can
cause you or others
to be burned. The air cleaner
not only cleans the air, it stops flame if the
engine backfires.
If it isn’t there, and the engine
backfires, you could be burned. Don’t drive with
it off, and be careful working on the engine with
the
air cleaner off.
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NOTICE:
If the air cleaner is off, a backfire can cause a
damaging engine fire. And, dirt can easily gel
into your engine, which wiil damage
it. Always
have the air cleaner
in place when you’re driving.
Automatic Transaxle Fluid
When to Check and Change:
A good time to check your automatic transaxle fluid
level
is when the engine oil is changed. Refer to the
Maintenance Schedule to determine when to change
your fluid. See “Scheduled Maintenance Services”
in
the Index.
How to Check:
Because this operation can be a little difficult, you may
choose to have this done at a Buick dealership Service
Department.
If you do it yourself, be sure to follow all the
instructions here,
or you could get a false reading on the
dipstick.
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Wait at least 30 minutes before checking the transaxle
fluid level if
you have been driving:
0 When outside temperatures are above 90 " F (32 " C).
0 At high speed for quite a while.
0 In heavy traffic -- especially in hot weather.
While pulling a trailer.
To get the right reading, the fluid should be at normal
operating temperature, which is
180 F to 200 " F (82 " C
to 93 "C).
Get the vehicle warmed up by driving about 15 miles
(24 km) when outside temperatures are above 50 " F
(10' C). If it's colder than 50 " F (1 0 ' C), you may have
to drive longer.
To check the fluid level:
Park your vehicle on a level place.
Place the shift lever in 7'" (Park) with the parking
With your foot on the brake pedal, move the shift
brake
applied.
lever through each gear range, pausing for about
three seconds in each range.
Then, position the shift
lever in "P" (Park).
Let the engine run at idle for three to five minutes. Then, without
shutting off the engine, follow these
steps:
1. Pull out the dipstick and wipe it with a clean rag or
paper towel.
2. Push it back in all the way, wait three seconds and
then pull it back out again.
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3.
4.
Check both sides of the dipstick, and read the lower
level. The fluid level must be in the cross-hatched
area.
If the fluid level is where it should be, push the
dipstick back in all the way.
How to Add Fluid:
Refer to the Maintenance Schedule to determine what
kind
of transaxle fluid to use. See “Recommended
Fluids and Lubricants” in the Index.
If the fluid level
is low, add only enough of the proper
fluid to bring the level into the cross-hatched area on the
dipstick. It doesn’t take much fluid, generally less than a
pint. Don’t overfill. We recommend you use only fluid
labeled DEXRONa-IIE, because fluids with that label are made especially for your automatic transaxle.
Damage caused by fluid other than DEXRONs-IIE
is
not covered by your new vehicle warranty.
0 After adding fluid, recheck the fluid level as
described under “How to Check.”
0 When the correct fluid level is obtained, push the
dipstick back in all the way.
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 Buick will:
0 Give freezing protection down to -34OF (-37OC) .
0 Give boiling protection up to 262°F (128 “C) .
0 Protect against rust and corrosion.
0 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
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To Check Coolant: When your engine is cold, the
coolant level should
be at “FULL COLD,’’ or a little
higher. When your engine is
warm, the level should be
up to “FULL HOT,” or a little higher.
To Add Coolant: If you need more coolant, add the
proper mix at the coolant recovery tank.
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A CAUTION:
Turning the radiator pressure cap when the
engine and radiator are hot can
allow steam and
scaldlng
liquids to blow out and burn you badly.
With the coolant recovery tank, you will almost
never have
to add coolant at the radiator. Never
turn the radiator pressure cap -- even a little -
when the engine and radiator are hot.
Add coolant mix at the recovery tank, but be careful not
to spill
it.
A CAUTION: I
You can be burned if you spill coolant on hot
engine parts. Coolant contains ethylene glycol,
-..d
it will burn if the engine parts are hot
enough. Don’t spill coolant on a hot engine.
Radiator Pressure Cap
I Tour rar
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cap IS a 13 PSI (105 kPa1
pressure-rype cap and must be tightly Insrawe
to prevent coolant loss and possible engine
damage from overheating. Be sure the arrows
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the cap line up with
radiator filler neck. I
When you replace your radiator pressure cap, an AC@
cap is recommended.
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Thermostat
Engine coolant temperature is controlled by a thermostat
in the engine coolant system. The thermostat stops the
flow of coolant through the radiator until the coolant
reaches a preset temperature.
When
you replace your thermostat, an ACS thermostat
is recommended.
Power Steering Fluid
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How To Check Power Steering Fluid:
Unscrew the cap and wipe the dipstick with a clean rag.
Replace the cap and completely tighten it. Then remove
the cap again and look at the fluid level on the dipstick.
When the engine compartment is hot, the level
When the engine compartment is cool, the level
What to Add:
Refer to the Maintenance Schedule to determine what
kind
of fluid to use. See “Recommended Fluids and
Lubricants” in the Index.
should be
at the
“HOT” mark.
should be at the
“FULL COLD” mark.
When adding power steering fli or making a
complete fluid change, always use the proper
fluid. Failure
to use the proper fluid can cause
leaks and damage hoses and seals.

Vehicle Identification Number (VIN)
ENGINE A3 f ASSEMBLY
~ CODE MODEL YEAR PLANT
This is the legal identifier for your Buick. It appears on
a plate in the front corner
of the instrument panel, on the
driver’s side. You can see it if you look through the
windshield from outside your vehicle.
The VIN also
appears on the Vehicle Certification and Service Parts
labels and the certificates
of title and registration.
Engine Identification
The eighth character in your VIN is the engine code for
your
GM engine. This code will help you identify your
engine, specifications, and replacement parts in this
section.
Service Parts Identification Label
You’ll find this label on the rear edge of the driver’s
door.
It’s very helpful if you ever need to order parts. On
this label is:
Your VIN.
Its model designation.
Paint information.
A list of all production options and special
Be sure that this label is
not removed from the vehicle.
equipment.
Add-on
Electrical Equipment
unless you check with your dealer first. Some
electrical equipment can damage your vehicle
and the damage wouldn’t be covered by your
warranty. Some
of it can just kee
from working as they should.