6-78
Engine Specifications
Displacement 279 cubic inches (4 565 cc). . . . . . . . .
Type 4.6 L DOHC V8. . . . . . . . . . . . . . . . . . . . . . . . .
VIN Engine Code
DeVille and DHS Y. . . . . . . . . . . . . . . . . . . . . . . . .
DTS 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Torque
DeVille and DHS 300 (lb
-ft) @ 4000 rpm. . . . . . .
407 (N·m) @ 4000 rpm
DTS 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). . . . . . . . . .
Engine Oil with Filter 7.5 quarts (7.1 L). . . . . . . . . .
Engine Cooling System 12.5 quarts (11.8 L). . . . . . . .
Fuel Tank 18.5 U.S. gallons (70.1 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.
Air Conditioning
Refrigerant Capacity
If you do your own service work, you’ll need the proper
service manual. See “Doing Your Own Service Work” 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 2.2 lbs. (1.0 kg). . . . . . . . . . . . .
Use Refrigerant Oil, R134a Systems
Normal Maintenance
Replacement Parts
Engine Air Cleaner/Filter Element A1208C*. . . . . . .
Passenger Compartment Air Filter Element **. . . . .
Engine Oil Filter PF
-58*. . . . . . . . . . . . . . . . . . . . . .
Spark Plugs PT16EPR
-C13*. . . . . . . . . . . . . . . . . . .
(GM Part 12561466)
Gap: 0.050 inches (1.3 mm)
Windshield Wiper Blade
(Shepherd’s Hook Type) 22 inches (56.5 cm). . . . . .
*AC Delco
R
part number.
**Use an AC Delco
R
part number.
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