Common Specs & Procedures Index
LUCERNE COMMON SPECS & PROCEDURES
| System | Specification/Procedure | ||
|---|---|---|---|
| Air Conditioning | |||
| Service | REFRIGERANT SYSTEM SPECIFICATIONS | ||
| Torque | |||
| Automatic System | FASTENER TIGHTENING SPECIFICATIONS | ||
| Manual System | FASTENER TIGHTENING SPECIFICATIONS | ||
| Wheel Drive Shaft Spindle Nut | 118 Ft. Lbs. (160 N.m) | ||
| Battery | BATTERY USAGE | ||
| Brakes | |||
| Bleeding Sequence | RR, LF, LR, RF HYDRAULIC BRAKE SYSTEM BLEEDING (MANUAL) |
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| 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 | |||
| 3.9L | See illustration under DRIVE BELT REPLACEMENT | ||
| 4.6L | See illustration under DRIVE BELT REPLACEMENT | ||
| Engine Cooling | |||
| General Service Specifications | SPECIFICATIONS | ||
| Radiator Cap Pressure | Specification is stamped on pressure cap | ||
| Thermostat R & I | |||
| 3.9L | ENGINE COOLANT THERMOSTAT REPLACEMENT (L37) | ||
| 4.6L | ENGINE COOLANT THERMOSTAT REPLACEMENT (LZ9 OR LGD) | ||
| Water Pump R & I | |||
| 3.9L | WATER PUMP REPLACEMENT (L37) | ||
| 4.6L | WATER PUMP REPLACEMENT (LZ9 OR LGD) | ||
| 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) | ||
| 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 Plate Torque | |||
| 3.9L | 52 ft. lbs. (70 N.m) | ||
| 4.6L | First Pass 22 ft. lbs. (30 N.m) Final Pass + 50 degrees |
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| Fuel System | |||
| Pressure Specification | |||
| 3.9L | 56-62 psi (386-425 kPa) | ||
| 4.6L | 55-62 psi (384-425 kPa) | ||
| Fuel Pressure Test Procedure | |||
| 3.9L | FUEL SYSTEM DIAGNOSIS | ||
| 4.6L | FUEL SYSTEM DIAGNOSIS | ||
| 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 | ||
| Fuel Filter R & I | |||
| 3.9L | FUEL TANK MODULE REPLACEMENT (NU6) | ||
| 4.6L | FUEL LEVEL SENSOR REPLACEMENT | ||
| Ignition | |||
| Firing Order & Cylinder Identification | 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 INSPECTION | ||
| 4.6L | Engine is equipped with Coil-On-Plug ignition. | ||
| Spark Plug | |||
| See appropriate GM parts catalog for proper application. | |||
| 3.9L | |||
| Gap | 0.040 in (1.02 mm) | ||
| Torque | 11 ft. lbs (15 N.m) | ||
| 4.6L | |||
| 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 | |||
| 3.9L | STARTER REPLACEMENT (V6) | ||
| 4.6L | STARTER REPLACEMENT (V8) | ||
| Torque | FASTENER TIGHTENING SPECIFICATIONS | ||
| Wheel Alignment | |||
| Adjustment Specifications | WHEEL ALIGNMENT SPECIFICATIONS | ||
| Torque | FASTENER TIGHTENING SPECIFICATIONS | ||
| Wheel & Tire | |||
| Wheel Lug Nut Torque (See Tightening Pattern in graphic TIRE AND WHEEL REMOVAL AND INSTALLATION . | 100 ft. lbs. (140 N.m) | ||