cooling CHEVROLET IMPALA 2004 8.G Owner's Manual

Underhood Fuse Block (Lower)
Some fuses are in a fuse block in the engine
compartment on the passenger’s side of the vehicle.
SeeEngine Compartment Overview on page 5-12
for more information on location.
Relays Usage
FAN CONT #3Secondary Cooling Fan
(Passenger’s Side)
FAN CONT #2 Cooling Fan Control Relay
Relays Usage
FAN CONT #1 Primary Cooling fan (Driver’s Side)
IGN RELAY Ignition Relay
A/C CMPR HVAC Compressor
Fuses Usage
IGN SW Ignition Switch
RT I/P #3 Rear Defogger, Audio System
U/HOOD #2 Ignition Relay, AIR Pump
COOLING
FANSCooling Fans (Battery)
FAN CONT
#2Cooling Fan Control Relays #2 & #3
FAN CONT #1 Cooling Fan Control Relays #1
FUEL INJ Fuel Injectors
TRANS SOL Transmission Solenoids
A/C RLY
(COIL)HVAC Control Relay
ENG DEVICESCanister Purge Solenoid, Mass Air
Flow Sensor (MAF), AIR Pump
Relay & Valve Control
DFI MDL Direct Fire Ignition Module
OXY SENOxygen Sensor (Pre and Post
Converter)
5-109

Capacities and Specications
Please refer toRecommended Fluids and Lubricants on page 6-12for more information.
ApplicationCapacities
English Metric
Air Conditioning Refrigerant R-134a 2.4 lbs 1.1 kg
Automatic Transaxle
Pan Removal and Replacement
After Complete Overhaul
When draining/replacing converter, more uid may be
needed.7.4 quarts
10 quarts7.0 L
9.5 L
Cooling System Including Reservoir
3400 (Code E) V6
3800 (Code K) V6
3800 Supercharged (Code 1) V611.3 quarts
11.7 quarts
11.7 quarts10.7 L
11.0 L
11.0 L
Engine Oil with Filter
3400 (Code E) V6
3800 (Code K) V6
3800 Supercharged (Code 1) V64.0 quarts
4.5 quarts
4.5 quarts3.8 L
4.2 L
4.2 L
Fuel Tank 17.0 gallons 64.0 L
All capacities are approximate. When adding, be sure to ll to the approximate level, as recommended in this
manual. SeeRecommended Fluids and Lubricants on page 6-12.
5-110

Scheduled Maintenance
Service MaintenanceIMaintenanceII
Change engine oil and lter. Reset oil life system. SeeEngine Oil on
page 5-18.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 5-25.An Emission Control Service. See footnote †.••
Rotate tires and check ination pressures and wear. SeeTires on page 5-64.••
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 (if equipped).See footnote (g).•
Inspect throttle system.See footnote (j).•
6-5

Additional Required Services (cont’d)
Service and Miles (Kilometers)25,000
(41 500)50,000
(83 000)75,000
(125 000)100,000
(166 000)125,000
(207 500)150,000
(240 000)
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.•
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
6-7

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.(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 5-29for 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 only: 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.
6-8

Compact Spare Tire........................................5-93
Compass Variance..........................................3-53
Console Shift Lever.........................................2-28
Content Theft-Deterrent....................................2-15
Control of a Vehicle.......................................... 4-5
Convenience Net............................................2-42
Coolant
Engine Temperature Gage............................3-36
Heater, Engine............................................2-20
Hot Temperature Warning Message................3-45
Cooling System..............................................5-35
Courtesy Lamps.............................................3-17
Cruise Control................................................3-11
Cruise Control Light........................................3-41
Current and Past Model Order Forms................7-13
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
Reporting Safety Defects to General Motors....7-11Customer Assistance Information (cont.)
Reporting Safety Defects to the Canadian
Government............................................7-11
Reporting Safety Defects to the United States
Government............................................7-11
Roadside Assistance Program......................... 7-6
Service Publications Ordering Information........7-12
D
Daytime Running Lamps/Automatic Headlamp
System......................................................3-15
Defensive Driving............................................. 4-2
Defogging and Defrosting.................................3-23
Delayed Entry Lighting.....................................3-17
Delayed Exit Lighting.......................................3-18
Delayed Headlamps........................................3-16
Dinghy Towing................................................4-31
Disarming with the Remote Keyless Entry
Transmitter.................................................2-16
Disarming with Your Key..................................2-16
Doing Your Own Service Work........................... 5-4
Dolly Towing..................................................4-31
Dome Lamp...................................................3-18
4

Engine (cont.)
Overheating................................................5-32
Starting......................................................2-18
Supercharger Oil.........................................5-24
Engine Cooling When Trailer Towing..................4-43
Engine Oil Additives........................................5-21
Entry Lighting.................................................3-17
Erasing HomeLink
®Buttons..............................2-41
Event Data Recorders (EDR)............................7-10
EXIT (Exit Feature Customization Mode)..............2-52
Express-Down Window....................................2-14
Extender, Safety Belt.......................................1-30
Exterior Lamps...............................................3-14
F
Filter
Engine Air Cleaner......................................5-25
Finding a Program Type (PTY) Station
(RDS and XM™).........................3-60, 3-71, 3-82
Finding a Station............................3-58, 3-69, 3-80
Finish Care....................................................5-98
Finish Damage.............................................5-100
Flash-to-Pass................................................... 3-9
Flat Tire........................................................5-81
Flat Tire, Changing.........................................5-82Fluid
Automatic Transaxle.....................................5-26
Power Steering...........................................5-45
Windshield Washer......................................5-46
FM Stereo.....................................................3-94
FOB HORN (Remote Audible Verication)...........2-48
FOB LIGHT (Remote Visual Verication)............2-47
FOB PROG (Remote Keyless Entry Transmitter
Programming).............................................2-52
Fog Lamps....................................................3-16
Folding Rear Seat............................................ 1-6
Following Distance..........................................4-41
Front Storage Area.........................................2-42
Fuel............................................................... 5-5
Additives...................................................... 5-6
California Fuel.............................................. 5-6
Filling a Portable Fuel Container....................5-10
Filling Your Tank........................................... 5-7
Fuels in Foreign Countries.............................. 5-7
Gage.........................................................3-42
Gasoline Octane........................................... 5-5
Gasoline Specications.................................. 5-5
Low Warning Message.................................3-50
Fuses
Fuses and Circuit Breakers.........................5-103
Windshield Wiper.......................................5-103
6