cooling Oldsmobile Cutlass Supreme 1996 s User Guide

How ,to Add Fluid Engine Coolant
I
Refer to the Maintenance Schedule to determine what
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.
~ kind of transaxle fluid to use. See “Recommended ,
1. Pull out the dipstick.
.2. Using a long-neck funnel, add enough fluid at the
dipstick hole to bring it to the proper level.
It doesn’t take much fluid, generally less than a pint
(0.5 L). Don’t ove@ZZ. We recommend you use only
fluid labeled DEXRON@-111, ‘because fluid with that
label is made especially for your automatic transaxle.
Damage caused by fluid other than DEXRON-I11 is
not covered by your new vehicle warranty.
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.
6-20
The cooling system in your vehicle is filled with new
DEX-COOL
TM (orange-colored, silicate-free) engine
coolant. This coolant is designed to remain
in your
vehicle for
5 years or 100,000 miles (166 000 km),
whichever occurs first.
The following explains your cooling system and how to
add coolant when it is low. If you have a problem with
engine overheating or if you need to add coolant to your
radiator, see “Engine Overheating” in the Index.
A
50/50 mixture of water and the proper.coolant for
your Oldsmobile will:
0 Give freezing protection down to -34°F (-37°C).
0 Give boiling protection up to 265 OF ( 129 O C).
0 Protect against rust and corrosion.
0 Help keep the proper engine temperature.
0 Let the warning lights and gages work as
they should.

NOTICE:
When adding coolant it is important that you use
DEX-COOL (orange-colored, silicate-free)
coolant meeting
GM Specification 6277M.
If silicated coolant is added to the system,
premature engine, heater core or radiator
corrosion may result. In addition, the engine
coolant will require change sooner
-- at
30,000 miles (50 000 km) or 24 months,
whichever occurs
first.
What to Use
Use a mixture of one-half clean water (preferably
distilled) and one-half DEX-COOL
TM (orange-colored,
silicate-free) antifreeze that meets GM Specification
6277M, which won’t damage aluminum parts. Use
GM Engine Coolant Supplement (sealer) (GM Part
No. 3634621) with any complete coolant change. If you
use
this mixture, you don’t need to add anything else.
1 CAUTION:
- -
Adding only plain water to your cooling system
can be dangerous. Plain water, or some other
liquid like alcohol, can boil before the proper
coolant mix will. Your vehicle’s coolant warning
system
is set for the proper coolant mix. With
plain water or the wrong mix, your engine could
get too hot but you wouldn’t get the overheat
warning. Your engine could catch fire and you or
others could be burned. Use
a 50/50 mix of clean
water and DEX-COOL (orange-colored,
,
silicate-free) antifreeze.
6-21

NOTICE:
If you use.an improper coolant mix, your engine-
could overheat and be badly damaged. The
.
repair cost wouldn't be covered by your
warranty.
Too much water in the mix can freeze
and crack' the engine, radiator, heater core and
other parts.
..
If you have to add coolant more than four times a year,
,have your retailer check your cooling system.
' ,.
NOTICE:
If you use the proper coolant, you don't have to
add extra inhibitors or additives which claim to
improve the system. These can be harmful.
.. , ,', . . , .,
L
I,
. -1 I ' .. .. . *. .. .,
.
,.
Chec'-'ng Coolant
When your engine is cold, the coolant level should be at
the
COLD mark or a little higher. When your engine. is
warm, the level should be up' to the HOT mark or, a
little higher.
/I .

Whmd :Reglacanent
Replace any wheel that is bent, cracked, or badly rusted
or corroded. If wheel nuts keep coming loose, the wheel,
wheel bolts and wheel nuts should be replaced. If the
wheel leaks air, replace it (except some aluminum
wheels, which can sometimes be repaired). See your
Oldsmobile retailer if any of these conditions exist.
Your retailer will know the kind
of wheel you need.
Each new wheel should have the same load-carrying
capacity, diameter, width, offset and be mounted the same way as the one it replaces.
If you need to replace any of your wheels, wheel bolts
or wheel nuts, replace them only with new
GM original
equipment
parts. This way, you will be sure to have the
right wheel, wheel bolts and wheel nuts for your
Oldsmobile model.
L
Using the wrong replacement wheels, wheel bolts
or wheel nuts on your vehicle can be dangerous.
It could affect the brakin.g and handling of your
vehicle, make your tires lose air and make you
lose control.
You could have a collision in which
you or others could be injured. Always use
the correct wheel, wheel bolts and wheel nuts
for replacement.
NOTICE:
The wrong wheel can also cause problems with
bearing life, brake cooling, speedometer or
odometer calibration, headlamp aim, bumper
height, vehicle ground clearance and tire or tire
chain clearance to the body and chassis.
See “Changing a Flat Tire” in the Index for more
information.
6-48

Fuse
F/INJN
ECM IGN
ELEK IGN
10
11
12
13
Description
Fuel Injectors
Powertrain Control Module (PCM),
Mass Air Flow (MAF) Sensor (VIN
X
only), EGR, CCP, Oxygen Sensor, VAC
CAN
SW, Fan Cont #2 Relay
Electronic Ignition (EI) Control Module
IP Fuse Block
FAN CONT #I Relay
Passenger’s Side Underhood Electrical
Center and
I/P Fuse Blocks: Fuses 5,
14,23 and 32
FAN CONT #2 Relay and
UP Fuse
Block: Fuse
16, Power Seat Circuit
Breaker D
Relay
14
15
16
17
18
Description
FUEL PUMP
NC CMPR
FAN CONT
#2 -- Secondary Cooling
Fan (Passenger’s Side)
FAN CONT #I
-- Primary Cooling Fan
(Driver’s Side)
Ignition Relay

Capacities and Specifications
Automatic Transaxle
Pan Removal and Replacement .... 7 quarts (6.7 L)
After Complete Overhaul ....... 10 quarts (9.5 L)
When draining transaxle convertel; more and/or less
converter fluid may be needed.
Cooling System Including Reservoir
3.1L (Code M) ............ 11.6 quarts (10.93 L)
3.4L (Code X) ............. 12.3 quarts (11.65 L)
Refrigerant (R- I34a),
Air Conditioning*
............. 2.0 pounds (0.91 kg)
Engine Specifications
Type .................................
Displacement ..........................
Compression Ratio .....................
Firingorder ..........................
Thermostat Temperature .................
Valve Arrangement .....................
Horsepower ...........................
Engine Crankcase -- Oil and Filter Change
3.1L L82 (Code M) ........... 4.5 quarts (4.2 L)
3.4L LQ1
(Code X) ........... 5.5 quarts (5.2 L)
Fuel Tank ................. 17.1 gallons (64.7 L)
*See “Air Conditioning Refrigerants” later in this section.
3.1L (Code M)
V6
191 CID (3.1L)
9.6: 1
1-2-3-4-5-6
195°F (91°C)
In-Head
160 @ 5200
3.4L (Code X)
V6
207
CID (3.4L)
9.25: 1
1-2-3-4-5-6
195°F (91 “C)
In-Head
215 @ 5200
6-69

.Maintenance Schedule
I Short Trip/City Definition I
Follow the Short TripKity Maintenance Schedule if any
one of these conditions is true for your vehicle:
Most trips are less than 5 to 10 miles (8 to 16 km).
This is particularly important when outside
temperatures are below freezing.
driving in stop-and-go traffic).
Most trips include extensive idling (such as frequent
0 Most trips are through dusty areas.
0 You frequently tow a trailer or use a carrier on top of
your vehicle.
If the vehicle is used for delivery .service, police, taxi
or other commercial application.
One of the reasons you should follow this schedule ifyou
operate your vehicle under any
of these conditions is that
these conditions cause engine oil to break down soonez
Short TriplCity Intervals
Every 3,000 Miles (5 000 km): Engine Oil and Filter
Change (or
3 months, whichever occurs first).
Every 6,000 Miles (10 000 km): Chassis Lubrication
(or
6 months, whichever occurs first).
At 6,000 Miles (10 000 km) -- Then Every
12,000 Miles
(20 000 km): Tire Rotation.
Every 15,000 Miles (25 000 km): Air Cleaner Filter
Inspection, if 'driving in dusty conditions.
Every 30,000 Miles (50 000 km): Air Cleaner Filter
Replacement. Fuel Tank, Cap and Lines Inspection.
Every '50,000 Miles (83 000 km): Automatic Transaxle
Service (severe conditions only).
Every 60,000 Miles (100 000 km): Engine Accessory
Drive Belt Inspection.
At 60,000 Miles (100 000 km) -- Then Every
15,000 Miles
(25 000 km): Camshaft Timing Belt
Inspection (3.4L Code
X engine only);
Every 100,000 Miles (166 000 km): Cooling System
Service (or every
60 months, whichever occurs first).
Spark.Plug Wire Inspection. Spark Plug Replacement.
These intervals only summarize maintenance services.
Be sure to follow the complete rnainten.ance schedule on
the following pages.
7-4

Maintenance Schedule
1 Long Trip/Highway Definition
Follow this maintenance schedule only if none of the
conditions
from the Short TripKity Maintenance
Schedule is
true.
Driving a vehicle with a fully warmed engine under
highway conditions causes engine oil to break
down slowez
Every 7,500 Miles (12 500 km): Engine Oil and Filter
Change (or every 12 months, whichever occurs first).
Chassis Lubrication
(or every 12 months, whichever
occurs first).
At 7,500 Miles (12 500 km) -- Then ,Every
15,000 Miles (25 000 km): Tire Rotation.
Every 30,000 Miles (50 000 km): Air Cleaner Filter
Replacement. Fuel Tank, Cap and Lines Inspection.
Every 50,000 Miles (83 000 km): Automatic Transaxle
SerVice (severe conditions only).
Every 60,000 Miles (100 000 km): Engine Accessory
Drive Belt Inspection.
At 60,000 Miles (100 000 km) -- Then Every
15,000
Miles (25 000 km): Camshaft Timing Belt
Inspection
(3.4L Code X engine only).
Every 100,000 Miles (166 000 km): Cooling System
Service (or every
60 months, whichever occurs first).
Spark Plug Wire Inspection. Spark Plug Replacement.
These intervals only summarize maintenance services.
Be sure to
follow the complete maintenance schedule on
the following pages.
7-5

I Short Trip/City Maintenance Schedule I
100,000 Miles (166 000 km)
0 Drain, flush and refill cooling system
(or every
60 months since last service,
whichever occurs first). See “Engine
Coolant’’ in the Index for what to use.
Inspect hoses. Clean radiator, condenser,
pressure cap ,and neck. Pressure test cooling
system and pressure cap.
An Emission Control,.Service,
0 Inspect spark plug wires.
0 Replace spark plugs.
An Emission Control Service.
.An Emission Control Service.
0 Change automatic transaxle fluid and filter
if the vehicle is mainly driven under one or
more of these conditions:
- In heavy city traffic where the outside
temperature regularly reaches
90 OF
(32 O C) or higher.
- In hilly or mountainous terrain.
- When doing frequent trailer towing.
- Uses such as found in taxi, pdlice or
If you do not use your vehicle under any of these
conditions, the fluid andfilter do not require changing.
delivery service.
DATE
SERVICED BY: ACTUAL MILEAGE
7-25

1 Long Trip/Highway Maintenance Schedule I
97,500 Miles (162 500 km)
0 Change engine oil and filter (or every
12 months, whichever occurs first).
17 Lubricate steering ball joints (or every
6 months, whichever occurs first).
0 Rotate tires. See “Tire Inspection and
Rotation” in the Index for proper rotation
pattern and additional information. During
tire rotation, check brake calipers for
freedom of movement. Refer to the
appropriate
GM service manual for proper
caliper service procedures.
An Emission Control Service.
DATE ACTUAL MILEAGE SERVICED BY.
100,000 Miles (166 000 km)
Drain, flush and refill cooling system
(or every
60 months since last service,
whichever occurs first). See “Engine
Coolant’’ in the Index for what to use.
Inspect hoses. Clean radiator, condenser,
pressure cap and neck. Pressure test the
cooling system and pressure cap.
An Emission Control Service.
Inspect spark plug wires.
0 Replace spark plugs.
An Emission Control Service.
An Emission Control Service.
I’
1”.