cooling Oldsmobile Cutlass 1999 s User Guide

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1. You can remove the coolant surge tank pressure cap
when the cooling system, including the coolant surge
tank pressure cap and upper radiator hose, is no
longer hot. Turn the pressure cap slowly
counterclockwise (left) about two or two and
one
-half turns. If you hear a hiss, wait for that to
stop. This will allow any pressure still left to be
vented out the discharge hose.
2. Then keep turning the pressure cap slowly, and
remove it.

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3. Then fill the coolant surge tank with the proper
mixture, to the FULL COLD mark or slightly higher.4. With the coolant surge tank pressure cap off, start the
engine and let it run until you can feel the upper
radiator hose getting hot. Watch out for the engine
cooling fans.
By this time, the coolant level inside the coolant
surge tank may be lower. If the level is lower, add
more of the proper mixture to the coolant surge tank
until the level reaches the FULL COLD mark or
slightly higher

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5. Then replace the pressure cap. Be sure the pressure
cap is hand
-tight.
Check the level in the surge tank when the cooling
system has cooled down. If the coolant isn't at the
proper level, repeat Steps 1 to 3 and reinstall the
pressure cap or see your dealer.
If a Tire Goes Flat
It's unusual for a tire to ªblow outº while you're driving,
especially if you maintain your tires properly. If air goes
out of a tire, it's much more likely to leak out slowly.
But if you should ever have a ªblowout,º here are a few
tips about what to expect and what to do:
If a front tire fails, the flat tire will create a drag that
pulls the vehicle toward that side. Take your foot off the
accelerator pedal and grip the steering wheel firmly.
Steer to maintain lane position, and then gently brake to
a stop well out of the traffic lane.
A rear blowout, particularly on a curve, acts much like a
skid and may require the same correction you'd use in a
skid. In any rear blowout, remove your foot from the
accelerator pedal. Get the vehicle under control by
steering the way you want the vehicle to go. It may be
very bumpy and noisy, but you can still steer. Gently
brake to a stop
-- well off the road if possible.
If a tire goes flat, the next part shows how to use your
jacking equipment to change a flat tire safely.

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NOTICE:
We recommend you use only fluid labeled
DEXRON
-III, because fluid with that label is
made especially for your automatic transaxle.
Damage caused by fluid other than
DEXRON

-III is not covered by your new
vehicle warranty.
Surge Tank Pressure Cap
NOTICE:
Your pressure cap is a 15 psi (105 kPa)
pressure
-type cap and must be tightly installed to
prevent coolant loss and possible engine damage
from overheating.
When you replace your surge tank pressure cap, a GM
cap is recommended.
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.
Engine Coolant
The cooling system in your vehicle is filled with
DEX
-COOL
engine coolant. This coolant is designed
to remain in your vehicle for 5 years or 150,000 miles
(240 000 km), whichever occurs first, if you add only
DEX
-COOL
extended life 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 ªEngine Overheatingº in
the Index.

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A 50/50 mixture of clean, drinkable water and
DEX
-COOL
coolant will:

Give freezing protection down to
-34F (-37C).

Give boiling protection up to 265F (129C).

Protect against rust and corrosion.

Help keep the proper engine temperature.

Let the warning lights and gages work as
they should.
NOTICE:
When adding coolant, it is important that you use
only DEX
-COOL (silicate-free) coolant.
If coolant other than DEX-COOL 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. Damage caused by the use
of coolant other than DEX
-COOL is not
covered by your new vehicle warranty.
What to Use
Use a mixture of one-half clean, drinkable water and
one
-half DEX-COOL coolant which won't damage
aluminum parts. If you use this coolant mixture, you
don't need to add anything else.
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 mixture will. Your vehicle's coolant
warning system is set for the proper coolant
mixture. With plain water or the wrong mixture,
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 mixture of clean, drinkable water and
DEX
-COOL coolant.

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6-20
NOTICE:
If you use an improper coolant mixture, your
engine could overheat and be badly damaged.
The repair cost wouldn't be covered by your
warranty. Too much water in the mixture 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 dealer 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.
Checking Coolant
The surge tank is located on the passenger's side of the
engine compartment.

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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 ªChanging a Flat Tireº in the Index for
more information.
Used Replacement Wheels
CAUTION:
Putting a used wheel on your vehicle is
dangerous. You can't know how it's been used or
how far it's been driven. It could fail suddenly
and cause an accident. If you have to replace a
wheel, use a new GM original equipment wheel.
Tire Chains
NOTICE:
Use tire chains only where legal and only when
you must. Use only SAE Class ªSº type chains
that are the proper size for your tires. Install
them on the front tires and tighten them as
tightly as possible with the ends securely
fastened. Drive slowly and follow the chain
manufacturer's instructions. If you can hear the
chains contacting your vehicle, stop and retighten
them. If the contact continues, slow down until it
stops. Driving too fast or spinning the wheels
with chains on will damage your vehicle.

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Fuse
Usage
3 Left
-Hand Electrical Center-Stop
Lamps, Hazard Lamps, Body
Function Control Module, Cluster,
Climate Control System
4 Right
-Hand Electrical Center-Fog
Lamps, Radio, Body Function
Control Module, Interior Lamps
5 Ignition Switch
6 Not Used
7 Anti
-Lock Brakes
8 Cooling Fans
Mini
-Relays
9 Rear Defog
10 Not Used
11 Anti
-Lock Brakes
12 Cooling Fan
13 HVAC Blower (Climate Control)
14 Cooling Fans
15 Cooling FansFuse
Usage
Micro
-Relays
16 Air Conditioning Compressor
17 Not Used
18 Fuel Pump
19 Automatic Light Control
20 Automatic Light Control
21 Horn
22 Daytime Running Lamps
Mini
-Fuses
23
- 32 Spare Fuse Holder
33 Rear Defog
34 Accessory Power Outlets, Cigar
Lighter
35 Anti
-Lock Brakes
36 Anti
-Lock Brakes
37 Air Conditioning Compressor,
Body Function Control Module

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Fuse
Usage
38 Automatic Transaxle
39 Powertrain Control Module,
Ignition
40 Anti
-Lock Brakes
41 Ignition System
42 Back
-Up Lamps, Brake-Transaxle
Shift Interlock
43 Horn
44 Powertrain Control Module
45 Parking Lamps
46 Rear Defog, Daytime Running
Lamps, Climate Control SystemFuse
Usage
47 Canister Purge Valve, Powertrain
Control Module, Exhaust Gas
Recirculation, Heated O
2 Sensor
48 Fuel Pump, Injectors
49 Generator
50 Right
-Hand Headlamp
51 Left
-Hand Headlamp
52 Cooling Fan
53 HVAC Blower (Climate Control)
54 Fuse Puller for Mini
-Fuses
55 Tach Test Point for Diagnostic
Testing

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Refrigerant, Air Conditioning. . . . . . . . . . . . . . . . .
See refrigerant charge label under the hood.
Wheel Nut Torque100 lb
-ft (140 N´m) . . . . . . . . . .
Tire Pressures, Sizes. . . . . . . . . . . . . . . . . . . . . . . .
See Tire
-Loading Information label on the driver's
side rear passenger door.
Cooling System13.6 quarts (12.9 L) . . . . . . . . . . . . .
Engine Crankcase4.5 quarts (4.3 L) . . . . . . . . . . .
Fuel Tank15.0 gallons (56.8 L) . . . . . . . . . . . . . . . .
NOTE: All capacities are approximate. When adding, be
sure to fill to the appropriate level or as recommended in
this manual.
See ªFluids and Lubricantsº in the Index.
Air Conditioning Refrigerants
Not all air conditioning refrigerants are the same. If the air
conditioning system in your vehicle needs refrigerant, be
sure the proper refrigerant is used. If you're not sure, ask
your dealer.
Normal Maintenance
Replacement Parts
Air Cleaner ElementAC Type A-1279C . . . . . . . . .
Engine Oil FilterAC Type PF
-47 . . . . . . . . . . . . . . . .
Spark PlugsAC Type
41
-940 (Platinum Plug) . . . . .
Gap: 0.060 inch (1.52 mm)
Windshield Wiper Blades
Driver's Side 22.0 inches (56.0 cm). . . . . . . . . . . . . .
Passenger's Side 19.0 inches (48.0 cm). . . . . . . . . . . .
Vehicle Dimensions
Length 192 inches (487.8 cm). . . . . . . . . . . . . . . . . . .
Width 69.4 inches (176.3 cm). . . . . . . . . . . . . . . . . . .
Height 56.4 inches (143.2 cm). . . . . . . . . . . . . . . . . . .
Wheelbase 107 inches (271.9 cm). . . . . . . . . . . . . . . .
Front Tread 59 inches (149.9 cm). . . . . . . . . . . . . . . . .
Rear Tread 59.3 inches (150.5 cm). . . . . . . . . . . . . . .