cooling BUICK REGAL 2004 Owner's Guide

Page 247 of 354

8. Then ll the coolant recovery tank to the COLD
mark on the coolant recovery tank.
9. Put the cap back on the coolant recovery tank, but
leave the radiator pressure cap off.10. Start the engine and let it run until the upper
radiator hose feels that it is getting hot. Watch
out for the engine cooling fans.
11. By this time, the coolant level inside the radiator
ller neck may be lower. If the level is lower, add
more of the proper DEX-COOL
®coolant mixture
through the ller neck until the level reaches
the base of the ller neck.
5-39

Page 283 of 354

Wheel Alignment and Tire Balance
The wheels on your vehicle were aligned and balanced
carefully at the factory to give you the longest tire life
and best overall performance.
Scheduled wheel alignment and wheel balancing are
not needed. However, if you notice unusual tire wear or
your vehicle pulling one way or the other, the alignment
may need to be reset. If you notice your vehicle
vibrating when driving on a smooth road, your wheels
may need to be rebalanced.
Wheel Replacement
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 dealer if any of these conditions exist.
Your dealer 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 vehicle.
{CAUTION:
Using the wrong replacement wheels, wheel
bolts or wheel nuts on your vehicle can be
dangerous. It could affect the braking 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.
SeeChanging a Flat Tire on page 5-78for more
information.
5-75

Page 309 of 354

Underhood Fuse Block
Some fuses and relays are located in the underhood
fuse block on the passenger’s side of the vehicle in the
engine compartment. SeeEngine Compartment
Overview on page 5-12for more information on location.
Fuses Usage
1 Anti-Lock Brake System
2 Starter Solenoid
3Power Seats, Rear Window
Defogger, Heated Seats
4High Blower, Hazard Flasher,
Stoplamps, Power Mirror, Door
Locks
5Ignition Switch, BTS Shifter Lock
Solenoid, Stoplamps, Anti-Lock
Brake System, Turn Signals,
Cluster, Air Bag, Daytime Running
Lamps Module
6 Cooling Fan
7Retained Accessory Power (RAP),
Remote Keyless Entry, Data Link,
Heating, Ventilation and Air
Conditioning Head, Cluster, Radio,
Cigarette Lighter
8Ignition Switch, Windshield Wipers,
Radio, Steering Wheel Controls,
Body Control Module, Power
Windows, Sunroof; Heating,
Ventilation and Air Conditioning
Controls; Daytime Running Lamps,
Rear Window Defogger Relay
5-101

Page 310 of 354

Relays Usage
9 Cooling Fan 2
10 Cooling Fan 3
11 Starter Solenoid
12 Cooling Fan 1
13 Ignition Main
14 Air Pump (Optional)
15 Not Used
16 Horn
17 Fog Lamps
18 Not Used
19 Fuel Pump
Fuses Usage
20 Not Used
21 Generator
22 Engine Control Module
23 Air Conditioner Compressor Clutch
24 Cooling Fan
25 Electronic Ignition
Fuses Usage
26 Transaxle
27 Horn
28 Fuel Injector
29 Oxygen Sensor
30 Engine Emissions
31 Fog Lamps
32 Right Headlamp
33 Rear Compartment Release
34 Parking Lamps
35 Fuel Pump
36 Left Headlamp
37 Not Used
38 Not Used
39 Not Used
40 Not Used
41 Not Used
42 Not Used
43 Not Used
SYMBOLAir Conditioner Compressor Clutch
Diode
5-102

Page 311 of 354

Capacities and Specications
Capacities and Specications
ApplicationCapacities
English Metric
Air Conditioning Refrigerant R134a 2.4 lbs 1.1 kg
Automatic Transaxle
Pan Removal and Replacement
After Complete Overhaul
When draining/replacing converter, more uid will be needed.7.4 quarts
10.0 quarts7.0 L
9.5 L
Cooling System Including Reservoir 11.7 quarts 11.0 L
Engine Oil with Filter 4.5 quarts 4.3 L
Fuel Tank 17.0 gallons 64.0 L
Wheel Nut Torque 100 lb ft 140Y
All capacities are approximate. When adding, be sure to ll to the approximate level, as recommended in this
manual. SeeScheduled Maintenance on page 6-4
Engine Specications
Engine VIN Code Displacement Firing Order
3800 V6
3800 Supercharged V6K
1231 CID 1–6–5–4–3–2
5-103

Page 317 of 354

Service MaintenanceIMaintenanceII
Change engine oil and lter. Reset oil life system. SeeEngine Oil on
page 5-16.An Emission Control Service.••
Visually check for any leaks or damage.See footnote (k).••
Inspect engine air cleaner lter. If necessary, replace lter. SeeEngine Air
Cleaner/Filter on page 5-22.An Emission Control Service. See footnote †.••
Rotate tires and check ination pressures and wear. SeeTires on page 5-61.••
Inspect brake system.See footnote (a).••
Check engine coolant and windshield washer uid levels and add uid as
needed.••
Perform any needed additional services. See “Additional Required Services” in
this section.••
Inspect suspension and steering components.See footnote (b).•
Inspect engine cooling system.See footnote (c).•
Inspect wiper blades.See footnote (d).•
Inspect restraint system components.See footnote (e).•
Lubricate body components.See footnote (f).•
Check transaxle uid level and add uid as needed.•
Replace passenger compartment air lter.See footnote (g).•
Inspect throttle system.See footnote (j).•
6-5

Page 318 of 354

Additional Required Services
The following services should be performed at the rst maintenance service (IorII) after the indicated miles
(kilometers) shown for each item.
Service25,000
(41 500)50,000
(83 000)75,000
(125 000)100,000
(166 000)125,000
(207 500)150,000
(240 000)
Inspect fuel system for damage or leaks.••••••
Inspect exhaust system for loose or
damaged components.••••••
Replace engine air cleaner lter.
SeeEngine Air Cleaner/Filter on
page 5-22.An Emission Control Service.••••••
Supercharger service (if equipped).An
Emission Control Service. See footnotes
† and (l).••••••
Change automatic transaxle uid and
lter (severe service).See footnote (h).•••
Change automatic transaxle uid and
lter (normal service).•
Replace spark plugs. Inspect spark plug
wires.An Emission Control Service.•
Engine cooling system service
(or every 5 years, whichever occurs
rst).An Emission Control Service.
See footnote (i).•
Inspect engine accessory drive belt.
An Emission Control Service.•
6-6

Page 319 of 354

Maintenance Footnotes
†The U.S. Environmental Protection Agency or the
California Air Resources Board has determined that the
failure to perform this maintenance item will not nullify
the emission warranty or limit recall liability prior to
the completion of the vehicle’s useful life. We, however,
urge that all recommended maintenance services be
performed at the indicated intervals and the
maintenance be recorded.
(a)Visually inspect brake lines and hoses for proper
hook-up, binding, leaks, cracks, chang, etc. Inspect
disc brake pads for wear and rotors for surface
condition. Inspect other brake parts, including calipers,
parking brake, etc.
(b)Visually inspect front and rear suspension and
steering system for damaged, loose or missing parts or
signs of wear. Inspect power steering lines and
hoses for proper hook-up, binding, leaks, cracks,
chang, etc.
(c)Visually inspect hoses and have them replaced if they
are cracked, swollen or deteriorated. Inspect all pipes,
ttings and clamps; replace with genuine GM parts as
needed. To help ensure proper operation, a pressure test
of the cooling system and pressure cap and cleaning the
outside of the radiator and air conditioning condenser is
recommended at least once a year.(d)Visually inspect wiper blades for wear or cracking.
Replace blade inserts that appear worn or damaged
or that streak or miss areas of the windshield.
(e)Make sure the safety belt reminder light and all your
belts, buckles, latch plates, retractors and anchorages
are working properly. Look for any other loose or
damaged safety belt system parts. If you see anything
that might keep a safety belt system from doing its
job, have it repaired. Have any torn or frayed safety belts
replaced. Also look for any opened or broken air bag
coverings, and have them repaired or replaced. (The air
bag system does not need regular maintenance.)
(f)Lubricate all key lock cylinders. Lubricate all hinges
and latches, including those for the body doors,
hood, secondary latch, pivots, spring anchor, release
pawl, rear compartment, glove box door, console
door and any folding seat hardware. More frequent
lubrication may be required when exposed to a corrosive
environment. Applying silicone grease on weatherstrips
with a clean cloth will make them last longer, seal
better and not stick or squeak.
(g)If you drive regularly under dusty conditions, the
lter may require replacement more often.
6-7

Page 320 of 354

(h)Change automatic transaxle uid and lter 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.
(i)Drain, ush and rell cooling system. See Engine
Coolant on page 5-26for what to use. Inspect hoses.
Clean radiator, condenser, pressure cap and ller neck.
Pressure test the cooling system and pressure cap.
(j)Check throttle system for interference or binding and
for damaged or missing parts. Replace parts as
needed. Replace any components that have high effort
or excessive wear. Do not lubricate accelerator or
cruise control cables.
(k)A uid loss in any vehicle system could indicate a
problem. Have the system inspected and repaired
and the uid level checked. Add uid if needed.
(l)For supercharged engines onl: Check the
supercharger oil level and add the proper supercharger
oil as needed (or every 36 months, whichever occurs
rst). See Recommended Fluids and Lubricants on
page 6-12.Owner Checks and Services
These owner checks and services should be performed
at the intervals specied to help ensure the safety,
dependability and emission control performance of your
vehicle. Your GM Goodwrench dealer can assist you
with these checks and services.
Be sure any necessary repairs are completed at once.
Whenever any uids or lubricants are added to your
vehicle, make sure they are the proper ones, as shown
inRecommended Fluids and Lubricants on page 6-12.
At Each Fuel Fill
It is important to perform these underhood checks at
each fuel ll.
Engine Oil Level Check
Check the engine oil level and add the proper oil if
necessary. SeeEngine Oil on page 5-16for further
details.
Notice:It is important to check your oil regularly
and keep it at the proper level. Failure to keep your
engine oil at the proper level can cause damage
to your engine not covered by your warranty.
6-8

Page 343 of 354

Checking Your Restraint Systems......................1-54
Chemical Paint Spotting...................................5-95
Child Restraints
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 Center
Rear Seat Position...................................1-42
Securing a Child Restraint in a Rear
Outside Seat Position...............................1-40
Securing a Child Restraint in the Right
Front Seat Position...................................1-44
Top Strap...................................................1-36
Top Strap Anchor Location............................1-37
Where to Put the Restraint...........................1-35
Cigarette Lighter.............................................3-17
Cleaning
Inside of Your Vehicle..................................5-90
Outside of Your Vehicle................................5-93
Underbody Maintenance...............................5-95
Weatherstrips..............................................5-92
Cleaning Aluminum or Chrome-Plated Wheels.....5-94
Cleaning Exterior Lamps/Lenses.......................5-93Cleaning Fabric/Carpet....................................5-90
Cleaning Glass Surfaces..................................5-92
Cleaning Interior Plastic Components.................5-92
Cleaning Leather............................................5-91
Cleaning the Top of the Instrument Panel...........5-92
Cleaning Tires................................................5-95
Cleaning Vinyl................................................5-91
Cleaning Windshield and Wiper Blades..............5-94
Climate Control System
Air Filter, Passenger Compartment.................3-25
Dual..........................................................3-17
Dual Automatic............................................3-20
Outlet Adjustment........................................3-24
Compact Spare Tire........................................5-89
Control Buttons...............................................3-43
Control of a Vehicle.......................................... 4-5
Convenience Net............................................2-36
Coolant
Engine Temperature Gage............................3-34
Engine Temperature Warning Light.................3-34
Heater, Engine............................................2-20
Cooling System..............................................5-32
Cornering Lamps............................................3-13
Courtesy Lamps.............................................3-14
Cruise Control.................................................. 3-8
Cruise Control Light........................................3-40
Current and Past Model Order Forms................7-12
3

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