Specifications Index
LUCERNE SPECIFICATIONS INDEX
| System | Specification/Procedure | ||
|---|---|---|---|
| Air Conditioning | |||
| Service | REFRIGERANT SYSTEM CAPACITIES | ||
| Torque | Automatic System FASTENER TIGHTENING SPECIFICATIONS Manual System FASTENER TIGHTENING SPECIFICATIONS |
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| Axle Nut/Hub Nut | |||
| Front | 118 Ft. Lbs. (160 N.m) | ||
| Battery | BATTERY USAGE | ||
| Brakes | |||
| Bleeding Sequence | RR, LF, LR, LF See HYDRAULIC BRAKE SYSTEM BLEEDING (MANUAL) | ||
| Disc Brakes | |||
| Service Specifications | DISC BRAKE COMPONENT SPECIFICATIONS | ||
| Torque | FASTENER TIGHTENING SPECIFICATIONS | ||
| Charging | |||
| Generator | GENERATOR USAGE | ||
| Torque | FASTENER TIGHTENING SPECIFICATIONS | ||
| Drive Belts | |||
| Adjustment | Serpentine drive belts are not adjustable | ||
| Belt Routing | For 3.9L See illustration under DRIVE BELT REPLACEMENT For 4.6L See illustration under DRIVE BELT REPLACEMENT |
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| Engine Cooling | |||
| General Service Specifications | NA | ||
| Radiator Cap Pressure | Specification is stamped on pressure cap | ||
| Thermostat R & I | |||
| 3.9L | ENGINE COOLANT THERMOSTAT REPLACEMENT (LZ9 OR LGD) | ||
| 4.6L | ENGINE COOLANT THERMOSTAT REPLACEMENT (LD8) | ||
| Water Pump R & I | |||
| 3.9L | WATER PUMP REPLACEMENT (LZ9 OR LGD) | ||
| 4.6L | WATER PUMP REPLACEMENT (LD8) | ||
| Engine Mechanical | |||
| 3.9L | |||
| Compression | No cylinder reading should be less than 100 psi (689 kPa) The lowest reading should not be less than 70 percent of the highest reading See ENGINE COMPRESSION TEST |
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| Oil Pressure - @ 1850 RPM | 30-45 psi (207-310 kPa) | ||
| Overhaul | ENGINE MECHANICAL SPECIFICATIONS | ||
| Torque | FASTENER TIGHTENING SPECIFICATIONS | ||
| 4.6L | |||
| Compression | No cylinder reading should be less than 140 psi (965 kPa) The lowest reading should not be less than 70 percent of the highest reading See ENGINE COMPRESSION TEST |
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| Oil pressure | Minimum @ Idle 5 psi (35 kPa) Minimum @ 2,000 RPM 35 psi (250 kPa) |
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| Overhaul | ENGINE MECHANICAL SPECIFICATIONS (LD8) ENGINE MECHANICAL SPECIFICATIONS (L37) |
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| Torque | FASTENER TIGHTENING SPECIFICATIONS | ||
| Fluid Specifications | See FLUIDS under MAINTENANCE tab. From within Manager or Service Writer, click the "30/60/90 Interval" or "Maint." button. | ||
| Flywheel/Flex Plate/Drive PlateTorque | |||
| 3.9L | 52 ft. lbs. (70 N.m) | ||
| 4.6L | First Pass 22 ft. lbs. (30 N.m) Final Pass + an additional 50 degrees |
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| Fuel System | |||
| Pressure Specification | 3.9L & 4.6L 55-62 psi (384-425 kPa) | ||
| Fuel Pressure Test Procedure | 3.9L See FUEL SYSTEM DIAGNOSIS 4.6L See FUEL SYSTEM DIAGNOSIS |
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| Fuel Filter Location | 3.9L The fuel strainer attaches to the lower end of the fuel sender (Module) 4.6L The fuel filter is contained in the fuel sender assembly inside the fuel tank |
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| Fuel Filter R & I | 3.9L See FUEL TANK MODULE REPLACEMENT (NU6)
or FUEL TANK MODULE REPLACEMENT (NT7) 4.6L See FUEL SENDER ASSEMBLY REPLACEMENT |
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| Ignition | |||
| Firing Order & Cylinder Identification | |||
| 3.9L & 4.6L | FIRING ORDER & CYLINDER IDENTIFICATION | ||
| Ignition Wires (Resistance) | 3.9L 1,237 ohms per ft (4,060 ohms per meter) 4.6L Coil On Plug |
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| Ignition Wires (Routing) | |||
| 3.9L | See illustrations under SPARK PLUG WIRE REPLACEMENT | ||
| 4.6L | Coil On Plug | ||
| Spark Plug | |||
| 3.9L (Type GM P/N 12591131 or AC Delco #41-100) | |||
| Gap | 0.040 in (1.02 mm) | ||
| Torque | 11 ft. lbs (15 N.m) | ||
| 4.6L (Type GM 12571535) | |||
| Gap | 0.050 in (1.27 mm) | ||
| Torque | Initial spark plug torque on a new cylinder head is 15 ft lbs (20 N.m) Thereafter spark plug torque is 11 ft. lbs. (15 N.m) |
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| Starting | |||
| Starter | NA | ||
| Torque | FASTENER TIGHTENING SPECIFICATIONS | ||
| Wheel Alignment | |||
| Adjustment Specifications | WHEEL ALIGNMENT SPECIFICATIONS | ||
| Torque | FASTENER TIGHTENING SPECIFICATIONS | ||
| Wheel & Tire | |||
| Wheel Lug Nut Torque | 100 ft. lbs. (140 N.m) | ||