cooling CADILLAC DEVILLE 2004 8.G Owner's Manual

Relays Usage
27 Headlamp High Beam
28 Headlamp Low Beam
29 Fog Lamps
30 Daytime Running Lamps
31 Horn
32 Air Conditioner Clutch
33 Not Used
34 Accessory
35 Not Used
36 Starter 1
37 Cooling Fan 1
38 Ignition 1
39 Cooling Fan Series/Parallel
40 Cooling Fan 2
Circuit
BreakersUsage
41 Starter
The spare fuses are located in numbers 48 through 52.
The fuse puller is located in number 53.
Removing the Rear Seat Cushion
Notice:If you touch the exposed wires with
the metal on the seat cushion, you could cause a
short that could damage the battery and or
wires. Avoid contact between the rear seat and the
fuse center whenever you remove or reinstall
the rear seat. Do not remove covers from any of the
covered parts, and do not store anything under
the seats.
To remove the rear seat cushion, do the following:
1. Pull up on the front of the cushion to release the
front hooks.
2. Pull the cushion up and out toward the front of the
vehicle.
5-110

Capacities and Specications
The following approximate capacities are given in English and metric conversions. Please refer toRecommended
Fluids and Lubricants on page 6-13for more information.
Engine Specications
Engine VIN Code Transaxle Spark Plug Gap Firing Order
4.6 L DOHC V8Y
DeVille,
DHSAutomatic
4T80 – E0.050 inches
(1.3 mm)1-2-7-3-4-5-6-8
4.6 L DOHC V89
DTSAutomatic
4T80 – E0.050 inches
(1.3 mm)1-2-7-3-4-5-6-8
Capacities and Specications
ApplicationCapacities
English Metric
Air Conditioning Refrigerant R134a
Use Refrigerant Oil, R134a Systems2.2 lbs 1.0 kg
Cooling System 13.0 quarts 12.3 L
Engine Oil with Filter 7.5 quarts 7.1 L
Fuel Tank 18.5 gallons 70.0 L
Transaxle 15.0 quarts 14.2 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. Recheck uid level after lling.
5-115

Scheduled Maintenance
Service MaintenanceIMaintenanceII
Change engine oil and lter. Reset oil life system. SeeEngine Oil on
page 5-15.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 5-66.••
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

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)
Change automatic transaxle uid
and lter (severe service).See
footnote (h).•••
Replace spark plugs.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.•
6-7

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 hood, rear
compartment, glove box door and console door. 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.
6-8

(h)If you do not use your vehicle under the following
conditions, the uid and lter do not require chage until
the CHANGE TRANS FLUID message appears on
the Driver Information Center. 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 limousine service.
Uses such as high performance operation.
(i)Drain, ush and rell cooling system. See Engine
Coolant on page 5-27for 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)Inspect throttle body bore and valve plates for
deposits. Open the throttle valve and inspect all
surfaces. Clean as required.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 6-13.
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 5-15for 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.
6-9

Climate Control System
Air Filter, Passenger Compartment.................3-40
Climate Controls Personalization....................3-43
Dual..........................................................3-32
Outlet Adjustment........................................3-37
Rear..........................................................3-38
Steering Wheel Controls...............................3-42
Comfort Controls, DIC Personalization................3-73
Compact Spare Tire........................................5-96
Compass Calibration.......................................2-40
Compass Operation.........................................2-40
Compass Variance..........................................2-40
Console Shift Lever.........................................2-35
Continuous Variable Road Sensing Suspension
(CVRSS)....................................................4-11
Control of a Vehicle.......................................... 4-6
Convenience Net............................................2-53
Coolant
Engine Temperature Gage............................3-54
Engine Temperature Warning Light.................3-54
Heater, Engine............................................2-27
Surge Tank Pressure Cap.............................5-31
Cooled Seats................................................... 1-3
Cooling System..............................................5-34
Cornering Lamps............................................3-20
Courtesy Lamps.............................................3-23Cruise Control................................................3-13
Cruise Control Light........................................3-60
Current and Past Model Order Forms................7-13
Customer Assistance Information
Courtesy Transportation.................................. 7-8
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................................................ 7-6
Reporting Safety Defects to General Motors.......7-12
Reporting Safety Defects to the Canadian
Government............................................7-11
Reporting Safety Defects to the United States
Government............................................7-11
Roadside Service.......................................... 7-6
Service Publications Ordering Information........7-12
D
Daytime Running Lamps..................................3-18
Defensive Driving............................................. 4-2
Defogging and Defrosting.................................3-36
Digital Cluster.................................................3-45
Dinghy Towing................................................4-34
4

Engine
Air Cleaner/Filter.........................................5-22
Battery.......................................................5-46
Check and Service Engine Soon Light............3-55
Coolant......................................................5-27
Coolant Heater............................................2-27
Coolant Temperature Gage...........................3-54
Coolant Temperature Warning Light................3-54
Drive Belt Routing.......................................6-15
Engine Compartment Overview......................5-14
Exhaust.....................................................2-37
Oil .............................................................5-15
Overheating................................................5-31
Starting......................................................2-26
Engine Cooling When Trailer Towing..................4-48
Engine Oil Additives........................................5-20
Engine Speed Limiter......................................3-49
English/Metric Button.......................................3-48
Entering Feature Programming..........................3-74
Entry Lighting.................................................3-23
Erasing HomeLink
®Buttons..............................2-49
Event Data Recorders (EDR)............................7-10
Exiting Feature Programming............................3-88
Express-Down Window....................................2-16
Express-Up Window........................................2-16Extender, Safety Belt.......................................1-28
Exterior Lamps...............................................3-17
Exterior Lighting Battery Saver..........................3-22
Exterior Lights at Unlock..................................3-82
F
Filter
Engine Air Cleaner......................................5-22
Finding a Program Type (PTY) Station
(XM™ Only)......................................3-93, 3-101
Finding a Station....................................3-91, 3-99
Finish Care..................................................5-102
Finish Damage.............................................5-104
Flash-To-Pass................................................3-10
Flat Tire........................................................5-85
Flat Tire, Changing.........................................5-86
Floor Mats.....................................................2-53
Fluid
Automatic Transaxle.....................................5-24
Power Steering...........................................5-40
Windshield Washer......................................5-41
FM Stereo....................................................3-115
Fog Lamp Light..............................................3-59
Fog Lamps....................................................3-20
6