engine coolant Oldsmobile Bravada 2003 s Owner's Guide

Engine Fan Noise
6. Start the engine and let it run until you can feel the
upper radiator hose getting hot. Watch out for the
engine cooling fan.
7. By this time, the coolant level inside the radiator
filler neck may be lower.
If the level is lower, add
more of the proper
DEX-COOL@ coolant mixture
through the filler neck until the level reaches
the base of the filler neck.
8. Then replace the pressure cap. At any time during
this procedure
if coolant begins to flow out of the
filler neck, reinstall the pressure cap. Be sure
the pressure cap is hand-tight. This vehicle has a clutched engine cooling
fan. When
the clutch is engaged, the fan spins faster to provide
more air to cool the engine. In most everyday driving
conditions the clutch is not engaged. This improves fuel
economy and reduces fan noise. Under heavy vehicle
loading, trailer towing, and/or high outside temperatures,
the fan speed increases when the clutch engages.
So
you may hear an increase in fan noise. This is
normal and should not be mistaken as the transmission
slipping or making extra shifts.
It is merely the cooling
system functioning properly. The fan will slow down
when additional cooling is not required and the clutch
disengages.
You may also hear this fan noise when you start the
engine.
It will go away as the fan clutch disengages.
5-32

Adding Washer Fluid
Open the cap with the
washer symbol on it. Add
washer fluid until the
tank is full.
Notice:
e
0
0
e
When using concentrated washer fluid, follow
the manufacturer’s instructions
for adding
water.
Don’t
mix water with ready-to-use washer fluid.
Water can cause the solution to freeze and
damage your washer fluid tank and other parts of the washer system.
Also, water doesn’t
clean
as well as washer fluid.
Fill your washer fluid tank only three-quarters
full when it’s very cold. This allows for expansion if freezing occurs, which could
damage the tank if
it is completely full.
Don’t use engine coolant (antifreeze)
in your
windshield washer.
It can damage your
washer system and paint.
Brakes
Brake Fluid
L A
L
L
1
Your brake master cylinder reservoir is filled with DOT-3
brake fluid. See
Engine Compartment Overview on
page
5-72 for the location of the reservoir.
There are only two reasons why the brake fluid level in
the reservoir might
go down. The first is that the
brake fluid goes down to an acceptable level during
normal brake lining wear. When new linings are put in,
the fluid level goes back up. The other reason is
that fluid is leaking out of the brake system.
5-34

100,000 Miles (166 000 km)
0 Replace spark plugs. An Emission Control Service.
0 Change automatic transmission 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°F (32°C) or
higher.
- In hilly or mountainous terrain.
- When doing frequent trailer towing.
- Uses such as found in taxi, police or delivery
service.
0 If you haven’t used your vehicle under severe service
conditions listed previously and, therefore, haven’t
changed your automatic transmission fluid, change
both the fluid and filter
U Change transfer case fluid.
150,000 Miles (240 000 km)
U Drain, flush and refill cooling system (or every
60 months since last service, whichever occurs first).
See
Engine Coolant on page 5-22 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.
0 Inspect engine accessory drive belt. An Emission
Control Service.
6-9

Part B: Owner Checks and Services
Listed in this part are owner checks and services
which should be performed at the intervals specified to
help ensure the safety, dependability and emission
control performance of your vehicle.
Be sure any necessary repairs are completed at once.
Whenever any fluids or lubricants are added to your
vehicle, make sure they are the proper ones, as shown
in Part
D.
At Each Fuel Fill
It is important for you or a service station attendant to
perform these underhood checks at each fuel fill.
Engine Oil Level Check
Check the engine oil level and add the proper oil if
necessary. See Engine Oil on page 5-13 for further
details.
Engine Coolant Level Check
Check the engine coolant level and add DEX-COOL@
coolant mixture
if necessary. See Engine Coolant
on page 5-22
for further details.
Windshield Washer Fluid Level Check
Check the windshield washer fluid level in the windshield
washer tank and add the proper fluid
if necessary.
See
Windshield Washer Fluid on page 5-33 for further
details.
At Least Once a Month
Tire Inflation Check
Make sure tries are inflated to the correct pressures.
Don’t forget to check your spare tire. See
Tires on
page 5-52
for further details.
Cassette Tape Player Service
Clean cassette tape player. Cleaning should be done
every
50 hours of tape play. See Audio Systern(s)
on page 3-56 for further details.
6-1 0

Part D: Recommended Fluids and
Lubricants
Fluids and lubricants identified below by name, part
number or specification may be obtained from your
dealer.
Engine
Oil
Gasoline Engines starburst symbol
of the proper viscosity. To determine
the preferred viscosity for your
vehicle's engine, see
Engine Oil on
Daae 5- 13.
I50/50 mixture of clean, drinkable
Engine Coolant
I water and use only
DEX-COOL@ Coolant. See Enaine
Hydraulic Brake
System
Windshield
Washer Solvent
I Coolant on page 5-22.
"
Delco Supreme 11 Brake Fluid or
equivalent DOT-3 brake fluid.
GM Optikleen@ Washer Solvent or
equivalent.
Usage Fluid/Lubricant
Chassis Lubricant (GM Part No.
U.S. 12377985,
in Canada
. . ~~~
Parking Brake
meeting requirements of NLGI #2, Cable Guides 88901242,
or equivalent) or lubricant
I Cateqow LB or GC-LB.
GM Power Steering Fluid (GM Part --
power Steering
No. U.S. 1052884, in Canada System 993294, or equivalent). ~ ~~ f~
Automatic DEXRON@ -111 Automatic
Transmission Transmission Fluid.
Multi-Purpose Lubricant, Superlube
Canada 10953474, or eauivalent).
Key
Lock (GM
Part No. U.S. 12346241, in
Chassis
Lubrication
-. - -I ~
Chassis Lubricant (GM Part No.
U.S. 12377985, in Canada
88901242, or equivalent) or lubricant
meeting requirements of NLGl #2,
Category LB or GC-LB.
SAE 75W-90 Synthetic Axle
Lubricant (GM Part
No. U.S.
Front Axle and Rear equivalent meeting GM Specification 12378261,
in Canada 10953455) or
I 99861 15.
6-1 7

CHECK WASHER FLUID ............. ......... 3-54
Checking Brake Fluid
................................... 5-35
Checking Coolant
......................................... 5-23
Checking Engine Oil
........................................ 5-14
Checking Things Under the Hood
...................... 5-10
Checking Your Restraint Systems
...................... 1-56
Chemical Paint Spotting
................................... 5-83
Child Restraints Center Seat Position
.................................... 1-45
Child Restraint Systems
... .................... 1-32
Infants and Young Children
........................... 1-29
Lower Anchorages and Top Tethers for
Children (LATCH System)
.............. ..... 1-38
Older Children
.................................... . 1-27
Securing a Child Restraint Designed for the LATCH System
.............................. 1-40
Securing a Child Restraint in a
Rear Outside Seat Position
........................ 1-40
Securing a Child Restraint in the
Right Front Seat Position
.......................... 1-42
Top Strap
................................................... 1-36
Top Strap Anchor Location
............................ 1-37
Where to Put the Restraint
........................... 1-35
Chime Level Adjustment
.................................. 3-91
Cigarette Lighter
............................................. 3-20
Cleaning Inside of Your Vehicle
.................................. 5-77
Outside of Your Vehicle
................................ 5-80
Underbody Maintenance
............................... 5-83
Video Screen
.............................................. 3-91 Cleaning
(cont.)
Weatherstrips
.............................................. 5-80
Cleaning Exterior Lamps/Lenses
....................... 5-80
Climate Controls Personalization
.................... 3-27
Dual Automatic
............................................ 3-21
Rear
.......................................................... 3-25
Steering Wheel Controls
............................... 3-27
Compact Disc Messages
.......................... 3-65, 3-76
Compass Calibration
.......... ..................... 2-31
Compass Operation
..................................... 2-30
Compass Variance
.......................................... 2-31
Content Theft-Deferrent
.................................... 2-16
Control of
a Vehicle ....................................... 4-5
Convenience Net
.................................. .. 2-44
Coolant Engine Temperature Gage
............................ 3-35
Climate Control System
Heater, Engine
............................................ 2-20
Cooling System
.............................................. 5-26
Cruise Control
................................................ 3-11
Cruise Control Light
........................................ 3-40
Current and Past Model Order Forms
................ 7-11
Customer Assistance Information Courtesy Transportation
...................... 7-7
Customer Assistance for Text
Telephone (TTY) Users
............................... 7-4
Customer Assistance Offices
........................... 7-4
Customer Satisfaction Procedure
..................... 7-2
GM Mobility Program for Persons with
Disabilities
................................................ 7-5
3

E
Electrical System
Add-on Equipment
...................................... 5-86
Fuses and Circuit Breakers
........................... 5-86
Headlamps
................................................. 5-86
Power Windows and Other Power Options
...... 5-86
Windshield Wiper Fuses
............................... 5-86
Electronically Controlled Air Suspension
System
...................................................... 4-43
Emergency Release for Opening Liftgate
............ 2-13
Emissions Inspection and Maintenance Programs
................................................... 3-38
Engine Air Cleaner/Filter
......................................... 5-1 8
Battery
....................................................... 5-38
Change Engine Oil Light
............................... 3-39
Check and Service Engine Soon Light
............ 3-35
Coolant
...................................................... 5-22
Coolant Heater
............................................ 2-20
Cooling System Inspection
............................ 6-15
Engine Compartment Overview
...................... 5-1 2
Exhaust ..................................................... 2-28
Fan Noise
.................................................. 5-32
Oil ............................................................. 5-13
Overheating
................................................ 5-24
Reduced Power Light
................................... 3-40
Starting
...................................................... 2-1 9
Coolant Temperature
Gage
........................... 3-35 Engine
Air Cleaner Filter Restriction
Indicator Check
............................. ... 6-11
Engine Compartment Fuse Block
................... 5-87
Engine Coolant Level Check
............................. 6-10
Engine Oil Additives
........................................ 5-17
Engine Oil Level Check
................................... 6-10
Engine Oil Scheduled Maintenance
..................... 6-5
Entertainment System Cleaning the Video Screen
........................... 3-91
DVD Distortion
............................................ 3-89
Entry Lighting
.............................................. 3-18
Environmental Concerns
........................ ... 4-17
Erasing HomeLinkO Buttons
................... ... 2-39
Exit Lighting
................................................... 3-18
Express-Down Window
.................................... 2-15
Extender, Safety Belt
....................................... 1-26
Exterior Lamps
........................................... 3-14
ENGINE COOLANT HOT/IDLE ENGINE
............. 3-52
F
FabridCarpet ................................................. 5-77
Filter
Engine Air Cleaner
...................................... 5-18
Finding a PTY Station
............................. 3-60, 3-69
Finding a Station
.................................... 3-58, 3-66
Finish Care
.................................................... 5-81
Finish Damage
............................................... 5-82
Fixed Mast Antenna
........................................ 3-91
Flash-to-Pass
................................................... 3-8
5

Flat Tire ......................................... 5-61
Flat Tire, Changing
......................................... 5-62
Fluid Automatic Transmission
................................ 5-20
Power Steering
........................................... 5-33
Windshield Washer
...................................... 5-33
FM
............................................................... 3-89
Fog Lamps
.................................................... 3-16
Following Distance
.......................................... 4-50
Footnotes
........................................................ 6-5
Front Axle ...................................................... 5-44
Front Storage Area
......................................... 2-42
Fuel
............................................................... 5-5
Additives ...................................................... 5-6
California Fuel
.............................................. 5-6
Filling Your Tank
........................................... 5-7
Fuels in Foreign Countries
.............................. 5-6
Gage
......................................................... 3-42
Gasoline Octane
........................................... 5-5
Gasoline Specifications .................................. 5-5
Low Warning Light
....................................... 3-42
System Inspection
....................................... 6-1 5
Fuel Information .............................................. 3-44
FUEL LEVEL LOW
.............................. .... ~~~~ 3-54
Fuses Fuses and Circuit Breakers
.......... ...... 5-86
Filling a Portable Fuel Container
..................... 5-9
G
Gage
Check Gages Warning Light
... ............... 3-41
Engine Coolant Temperature
................. 3-35
Fuel
.................................................. 3-42
Oil Pressure
..... ........ ............... 3-38
Speedometer
...................................... 3-30
Tachometer
............................................. 3-30
Garage Door Opener
....................................... 2-37
Gasoline Octane
........................ ......... 5-5
Speclflcatlons
............................................... 5-5
Gate Ajar Light
............................................... 3-42
Gate Operator and Canadian Programming
........ 2-39
Getting Familiar with Off-Road Driving
................ 4-17
Glass Surfaces
............................................... 5-79
Glove Box ..................................................... 2-41
GM Mobility Program for Persons with
Disabilities
...................................
Voltmeter Gage ........................................... 3-32
...
............. 7-5
Hazard Warning Flashers
................................... 3-5
Head Restraints
............................................... 1-5
Headlamps Headlamp High/Low-Beam Changer
.................... 3-8
Bulb Replacement
....................................... 5-47
Windshield Wiper
......................................... 5-86 Electrical System ......................................... 5-86
6

Headphones ................................................... 3-77
Heated Seats
................................................... 1-3
Highway Hypnosis
........................................... 4-34
Hill and Mountain Roads
.................................. 4-34
Hitches
.......................................................... 4-49
HomeLink@ Transmitter, Programming
................ 2-37
HomeLink@ Transmitter
................................... 2-37
Hood Checking Things Under
................................ 5-10
Release ..................................................... 5-1 0
Horn ............................................................... 3-6
Recovery Tank
............................................ 5-28
How to Add Fluid ............................................ 5-22
How to Check ........................................ 5-20, 5-53
How to Check Lubricant
................................... 5-46
How to Check Power Steering Fluid
.................. 5-33
How
to Wear Safety Belts Properly ................... 1-13
Hydroplaning
.................................................. 4-30
How
to Add
Coolant to the Coolant
How
to Add Coolant to the Radiator .................. 5-30
How to Use This Manual ...................................... ii
I
ICE POSSIBLE .............................................. 3-54
If No Steam Is Coming From Your Engine .......... 5-25
If Steam Is Coming From Your Engine ............... 5-25
If the Light Is On Steady ................................. 3-37
If the
Light
Is Flashing ..................................... 3-36
If You Are Stuck in Sand. Mud. Ice or Snow ....... 4-40
If You Do Decide To Pull A Trailer ..................... 4-46
If You’re Caught in a Blizzard
........................... 4-38
Ignition Positions ............................................. 2-18
Inflation -- Tire Pressure .................................. 5-53
Brake System
............................................. 6-16
Engine Cooling System
................................ 6-15
Fuel System
............................................... 6-15
Part C
- Periodic Maintenance ....................... 6-15
Boot and Seal
......................................... 6-15
(All-Wheel Drive)
...................................... 6-16
Cluster
....................................................... 3-29
Overview
..................................................... 3-4
Instrument Panel Brightness
............................. 3-17
Interior Lamps
................................................ 3-17
Interior Plastic Components
.............................. 5-79
Ignition Transmission
Lock Check
...................... 6-13
Infants and Young Children, Restraints
............... 1-29
inspection
Exhaust System
.......................................... 6-15
Steering, Suspension and Front Drive Axle
Transfer Case and Front Axle
Instrument Panel
J
Jump Starting ................................................. 5-39
7

Tachometer ........... ....
Taillamps Turn Signal Lamps
.........
ThefbDeterrent. Radio ........
Theft-Deterrent Systems ......
Content Theft-Deterrent ...
Passlock@ .....................
Tilt Wheel ..........................
Testing the Alarm ...............
....... .. 3-30
........................... 5-47
........................... 2-17
........................... 3-88
........................... 2-16
........................... 2-16
........................... 2-17
............................. 3-6 ...
Tire Inflation Check ......................................... 6-10
Tires
..................................................... 5-52. 5-82
Buying New Tires
........................................ 5-56
Chains
....................................................... 5-60
Changing a Flat Tire
.................................... 5-62
If a Tire Goes Flat
....................................... 5-61
Inflation
-- Tire Pressure ............................... 5-53
Inspection and Rotation
................................ 5-53
Uniform Tire Quality Grading
......................... 5-57
Wheel Alignment and Tire Balance
................. 5-58
Wheel Replacement
..................................... 5-58
When
It Is Time for New Tires ...................... 5-55
To Use the Engine Coolant Heater .................... 2-21
Top
of the Instrument Panel ............................. 5-79
Top Strap
...................................................... 1-36
Top Strap Anchor Location
............................... 1-37 Torque Lock
................................................... 2-27
Total Weight on Your Vehicle’s Tires
.................. 4-48
Towing Recreational Vehicle
..................................... 4-41
Towing a Trailer
.......................................... 4-45
Your Vehicle
............................................... 4-41
Traction Assist System (TAS)
...................................... 4-9
Trailer Brakes
................................................. 4-49
Trailer Wiring Harness
..................................... 4-53
Transfer Case
................................................ 5-44
Transmission Fluid, Automatic
........................................... 5-20
Transmission Operation, Automatic
.................... 2-22
Transmission, Transaxle, Transfer Case Unit
Repair Manual
............................................ 7-10
Travel Note Recorder
...................................... 2-41
Traveling
to Remote Areas ............................... 4-17
Trip Information
.............................................. 3-44 .
Trip Odometer ................................................ 3-30
TRANS HOT IDLE
ENGINE
............................. 3-54
Transportation Options
...................................... 7-7
Turn and Lane Change Signals
.......................... 3-7
TURN SIGNAL
ON ......................................... 3-53
Turn Signals When Towing a Trailer
.................. 4-51
Turn SignaVMultifunction Lever
........................... 3-7
14