Page 323 of 365
6-63
Underhood Fuse Block
The underhood fuse block is located next to the engine
air cleaner/filter in the engine compartment on the
driver's side of the vehicle. Lift the cover to gain access.Fuse Usage
SPARE Spare Fuse
CNR LPS Cornering Lamp Switch,
Right and Left Cornering Lamps
INT LPS Trunk Lamp, Courtesy Lamps,
Front Vanity Lamps, Glove Box
Lamp, Garage Door Opener,
Courtesy Lamp Relay
Page 328 of 365

6-68
Replacement Bulbs
For any bulb not listed here contact your dealer.
Application Number
Headlamps Composite
Inner High Beam 9005. . . . . . . . . . . . . . . . . . . . . . .
Outer Low Beam 9006. . . . . . . . . . . . . . . . . . . . . . .
Front Turn Signal 3157 NA. . . . . . . . . . . . . . . . . . . . .
Center High
-Mounted Stoplamp (CHMSL) 1156. . . .
Rear Turn Signal and Taillamp 2057. . . . . . . . . . . . .
Capacities and Specifications
The following approximate capacities are given in
English and metric conversions. Please refer to
ªRecommended Fluids and Lubricantsº in the
Maintenance Schedule booklet for more information.
Engine Specifications
Displacement 279 cubic inches (4 565 cc). . . . . . . . .
Type 4.6 L DOHC V8. . . . . . . . . . . . . . . . . . . . . . . . .
VIN Engine Code
Eldorado Y. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ETC 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Torque
Eldorado 300 (lb
-ft) @ 4000 rpm . . . . . . . . . . . . . .
407 (N´m) @ 4000 rpm
ETC 295 (lb
-ft) @ 4400 rpm . . . . . . . . . . . . . . . . . .
400 (N´m) @ 4400 rpm
Firing Order 1
-2-7-3-4-5-6-8 . . . . . . . . . . . . . . . . . . .
Wheel Nut Torque
100 lb-ft (140 N´m)
Capacities
Transaxle (4T80-E) 15.0 quarts (14.2 L). . . . . . . . . .
Crankcase (Engine Oil with
Filter Change) 7.5 quarts (7.1 L). . . . . . . . . . . . . .
Engine Cooling System 12.5 quarts (11.8 L). . . . . . . .
Fuel Tank 19.0 U.S. gallons (71.9 L). . . . . . . . . . . . .
All capacities are approximate. When adding, be sure
to fill to the approximate level, as recommended in this
manual. Recheck fluid level after filling.
Page 329 of 365
6-69
Air Conditioning
Refrigerant Capacity
If you do your own service work, you'll need the proper
service manual. See ªDoing Your Own Service Workº in
the Index for additional information. It is recommended
that service work on your air conditioning system be
performed by a qualified technician.
Air Conditioning
Refrigerant R
-134a 2.0 lbs. (1.0 kg). . . . . . . . . . . . .
Use Refrigerant Oil, R134a Systems
Normal Maintenance
Replacement Parts
Air Filter Element A1096C*. . . . . . . . . . . . . . . . . . . .
Engine Oil Filter PF
-58* . . . . . . . . . . . . . . . . . . . . . .
Spark Plugs PT16EPR
-C13* . . . . . . . . . . . . . . . . . . .
(GM part 12561466)
Gap: 0.050 inches (1.3 mm)
Windshield Wiper Blade
(Pin Type) 22 inches (56.5 cm). . . . . . . . . . . . . . . . .
AC Delco
part number.
Page 335 of 365

Scheduled Maintenance
7-6Engine Oil Scheduled Maintenance
Change engine oil and filter as indicated by the
GM Oil Life System (or every 12 months,
whichever occurs first). Reset the system.
Your vehicle has a computer system that lets you know
when to change the engine oil and filter. This is based
on engine revolutions and engine temperature, and not
on mileage. Based on driving conditions, the mileage
at which an oil change will be indicated can vary
considerably. For the oil life system to work properly,
you must reset the system every time the oil is changed.
When the system has calculated that oil life has
been diminished, it will indicate that an oil change is
necessary. A CHANGE ENGINE OIL message in
the Driver Information Center (DIC) will come on.Change your oil as soon as possible within the next
two times you stop for fuel. It is possible that, if you
are driving under the best conditions, the oil life system
may not indicate that an oil change is necessary for
over a year. However, your engine oil and filter must be
changed at least once a year and at this time the system
must be reset. It is also important to check your oil
regularly and keep it at the proper level.
If the system is ever reset accidentally, you must change
your oil at 3,000 miles (5 000 km) since your last oil
change. Remember to reset the oil life system whenever
the oil is changed. See ªOil Life Systemº in the Index
for information on resetting the system.
An Emission Control Service.
Page 338 of 365
Scheduled Maintenance
7-9
7,500 Miles (12 500 km)
Rotate tires. See ªTire Inspection and Rotationº in the Index for proper
rotation pattern and additional information. (See footnote +.)
15,000 Miles (25 000 km)
Inspect engine air cleaner filter if you are driving in dusty conditions.
Replace filter if necessary.
An Emission Control Service. (See footnote .)
Rotate tires. See ªTire Inspection and Rotationº in the Index for proper
rotation pattern and additional information. (See footnote +.)
22,500 Miles (37 500 km)
Rotate tires. See ªTire Inspection and Rotationº in the Index for proper
rotation pattern and additional information. (See footnote +.)
ACTUAL
SERVICED BY:MILEAGE
DATE
ACTUAL
SERVICED BY:MILEAGE
DATE
ACTUAL
SERVICED BY:MILEAGE
DATE
Page 339 of 365

Scheduled Maintenance
7-10
30,000 Miles (50 000 km)
Inspect throttle body bore and valve plates for deposits, open the throttle valve
and inspect all surfaces. Clean as required.
An Emission Control Service. (See footnote .)
Rotate tires. See ªTire Inspection and Rotationº in the Index for proper
rotation pattern and additional information. (See footnote +.)
Replace engine air cleaner filter.
An Emission Control Service.
37,500 Miles (62 500 km)
Rotate tires. See ªTire Inspection and Rotationº in the Index for proper
rotation pattern and additional information. (See footnote +.)
45,000 Miles (75 000 km)
Inspect engine air cleaner filter if you are driving in dusty conditions.
Replace filter if necessary.
An Emission Control Service. (See footnote .)
Rotate tires. See ªTire Inspection and Rotationº in the Index for proper
rotation pattern and additional information. (See footnote +.)
ACTUAL
SERVICED BY:MILEAGE
DATE
ACTUAL
SERVICED BY:MILEAGE
DATE
ACTUAL
SERVICED BY:MILEAGE
DATE
Page 341 of 365

Scheduled Maintenance
7-12
60,000 Miles (100 000 km)
Inspect throttle body bore and valve plates for deposits, open the throttle valve
and inspect all surfaces. Clean as required.
An Emission Control Service. (See footnote .)
Rotate tires. See ªTire Inspection and Rotationº in the Index for proper
rotation pattern and additional information. (See footnote +.)
Inspect engine accessory drive belt.
An Emission Control Service.
Replace engine air cleaner filter.
An Emission Control Service.
67,500 Miles (112 500 km)
Rotate tires. See ªTire Inspection and Rotationº in the Index for proper
rotation pattern and additional information. (See footnote +.)
75,000 Miles (125 000 km)
Inspect engine air cleaner filter if you are driving in dusty conditions.
Replace filter if necessary.
An Emission Control Service. (See footnote .)
Rotate tires. See ªTire Inspection and Rotationº in the Index for proper
rotation pattern and additional information. (See footnote +.)
ACTUAL
SERVICED BY:MILEAGE
DATE
ACTUAL
SERVICED BY:MILEAGE
DATE
ACTUAL
SERVICED BY:MILEAGE
DATE
Page 342 of 365
Scheduled Maintenance
7-13
82,500 Miles (137 500 km)
Rotate tires. See ªTire Inspection and Rotationº in the Index for proper
rotation pattern and additional information. (See footnote +.)
90,000 Miles (150 000 km)
Inspect throttle body bore and valve plates for deposits, open the throttle valve
and inspect all surfaces. Clean as required.
An Emission Control Service. (See footnote .)
Replace engine air cleaner filter.
An Emission Control Service.
Rotate tires. See ªTire Inspection and Rotationº in the Index for proper
rotation pattern and additional information. (See footnote +.)
97,500 Miles (162 500 km)
Rotate tires. See ªTire Inspection and Rotationº in the Index for proper
rotation pattern and additional information. (See footnote +.)
ACTUAL
SERVICED BY:MILEAGE
DATE
ACTUAL
SERVICED BY:MILEAGE
DATE
ACTUAL
SERVICED BY:MILEAGE
DATE