Common Specs & Procedures Index
EXPRESS AND SAVANA COMMON SPECS & PROCEDURES
| System | Specification/Procedure | ||
|---|---|---|---|
| Air Conditioning | |||
| Service | REFRIGERANT SYSTEM SPECIFICATIONS | ||
| Torque | (Manual) FASTENER TIGHTENING SPECIFICATIONS | ||
| Axle Nut/Hub Nut | |||
| Front | 155 lb ft (210 N.m) | ||
| Battery | BATTERY USAGE | ||
| Brakes | |||
| Bleeding Sequence | RIGHT REAR, LEFT REAR, RIGHT FRONT, LEFT FRONT | ||
| Disc Brakes | |||
| Service Specifications | DISC BRAKE COMPONENT SPECIFICATIONS | ||
| Torque | FASTENER TIGHTENING SPECIFICATIONS | ||
| Charging | |||
| Generator | GENERATOR USAGE | ||
| Torque | FASTENER TIGHTENING SPECIFICATIONS | ||
| Drive Belts | |||
| Adjustment | Serpentine belt used, not adjustable | ||
| Drive Belt Routing | 4.3L See the figure under DRIVE BELT REPLACEMENT . 4.8L, 5.3L, 6.0L See the figure under DRIVE BELT REPLACEMENT - ACCESSORY . 6.6L See the figure under DRIVE BELT REPLACEMENT . |
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| Engine Cooling | |||
| General Service Specifications | N/A | ||
| Radiator Cap Pressure | Pressure stamped on cap | ||
| Thermostat R & I | |||
| 4.3L | ENGINE COOLANT THERMOSTAT REPLACEMENT (V6) | ||
| V8 | ENGINE COOLANT THERMOSTAT HOUSING REPLACEMENT (V8) | ||
| Water Pump R & I | |||
| 4.3L | WATER PUMP REPLACEMENT (V6) | ||
| 5.3L | WATER PUMP REPLACEMENT (LMF/LY2) | ||
| 4.8L, 6.6L, 6.0L | WATER PUMP REPLACEMENT (V8) | ||
| Engine Mechanical | |||
| 4.3L | |||
| Compression | ENGINE COMPRESSION TEST | ||
| Oil Pressure | @ 1,000 RPM - 6 psi (42 kPa) @ 2,000 RPM - 18 psi (125 kPa) @ 4,000 RPM - 24 psi (166 kPa) |
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| Overhaul | SPECIFICATIONS | ||
| Torque | FASTENER TIGHTENING SPECIFICATIONS | ||
| 4.8L, 5.3L, 6.0L | |||
| Compression | ENGINE COMPRESSION TEST | ||
| Oil Pressure |
Minimum - Hot @ 1,000 RPM - 6 psi (41 kPa) @ 2,000 RPM - 18 psi (124 kPa) @ 4,000 RPM - 24 psi (165 kPa) Maximum 55 - 75 psi (379 - 517 kPa) |
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| Overhaul | SPECIFICATIONS | ||
| Torque | FASTENER TIGHTENING SPECIFICATIONS | ||
| 6.6L | |||
| Compression | ENGINE COMPRESSION TEST | ||
| Oil Pressure | Minimum - Hot @ Idle - 7 psi (48 kPa) Minimum - Hot - @ 1800 RPM - 28 psi (193 kPa) |
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| Overhaul | SPECIFICATIONS | ||
| Torque | FASTENER TIGHTENING SPECIFICATIONS | ||
| Fluid Specifications | See FLUIDS under MAINTENANCE/FLUIDS tab. From within Manager or Service Writer, click the "30/60/90 Interval" or "Maint." button. | ||
| Flywheel/Flex Plate/Drive Plate Torque - 4.3L | 74 lb ft (100 N.m) | ||
| Flywheel/Flex Plate/Drive Plate Torque - 4.8L, 5.3L, 6.0L | First Pass 15 Ft Lb (20 N.m) Second Pass 37 Ft Lb (50 N.m) Final Pass 74 Ft Lb (100 N.m) |
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| Flywheel/Flex Plate/Drive Plate Torque - 6.6L | Angular Tightening Method 1st step - 59 lb ft (80 N.m) 2nd step - 60 degrees 3rd step - 60 degrees |
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| Fuel System | |||
| Pressure Specification | 4.3L Not Running 50-60 psi (345-414 kPa) See CIRCUIT/SYSTEM VERIFICATION . 4.5L, 5.8L, 6.0L Without Fuel Pump Control Module Not Running - 50-60 psi (345-414 kPa) See CIRCUIT/SYSTEM VERIFICATION . With Fuel Pump Control Module Not Running - 50-100 psi (345-690 kPa) See CIRCUIT/SYSTEM VERIFICATION . With Fuel Pump Control Module Running - 43-45 psi (296-310 kPa) See CIRCUIT/SYSTEM VERIFICATION . V6 CNG Not Running - 90-110 psi (620-758 kPa) See CIRCUIT/SYSTEM VERIFICATION . 4 fuel tank N/A See CIRCUIT/SYSTEM VERIFICATION . 6.6L Running - 1450 psi (10 MPa) See CIRCUIT/SYSTEM VERIFICATION . |
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| Fuel Pressure Test Procedure | 4.3L FUEL SYSTEM DIAGNOSIS 4.8L, 5.3L, 6.0L Without Fuel Pump Control Module FUEL SYSTEM DIAGNOSIS (WITHOUT FPCM) With Fuel Pump Control Module FUEL SYSTEM DIAGNOSIS (FPCM) V6 CNG FUEL SYSTEM DIAGNOSIS (LC8\FHZ) 4 fuel tank FUEL SYSTEM DIAGNOSIS (LC8\K07\UFP) 6.6L FUEL SYSTEM DIAGNOSIS |
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| Fuel Filter Location | 4.3L Fuel filter is part of the fuel tank fuel pump module 4.8L, 5.3L, 6.0L Fuel filter is part of the fuel tank fuel pump module 6.6L See figure under FUEL FILTER REPLACEMENT |
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| Fuel Filter R & I | 4.3L FUEL TANK FUEL PUMP MODULE REPLACEMENT 4.8L, 5.3L, 6.0L FUEL TANK FUEL PUMP MODULE REPLACEMENT 6.6L See figure under FUEL FILTER REPLACEMENT |
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| Ignition | |||
| Firing Order & Cylinder Identification | FIRING ORDER & CYLINDER IDENTIFICATION | ||
| Ignition Wires (Resistance) | 4.3L 1,200-1,500 ohms per ft See IGNITION SYSTEM SPECIFICATIONS . 4.8L, 5.3L, 6.0L 397-1,337 ohms |
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| Ignition Wires (Routing) | |||
| 4.3L | See figure under SPARK PLUG WIRE REPLACEMENT . | ||
| 4.8L, 5.3L, 6.0L | See figure under SPARK PLUG WIRE REPLACEMENT . | ||
| Spark Plug | |||
| 4.3L (Refer to Electronic Parts Catalogue) | |||
| Gap | 0.06 in (1.5 mm) | ||
| Torque | 11 lb ft (15 N.m) | ||
| 4.8L, 5.3L, 6.0L (Refer to Electronic Parts Catalogue) | |||
| Gap | 0.040 in (1.02 mm) | ||
| Torque | 11 lb ft (15 N.m) | ||
| Starting | |||
| Starter | N/A | ||
| Torque | FASTENER TIGHTENING SPECIFICATIONS | ||
| Wheel Alignment | |||
| Adjustment Specifications | WHEEL ALIGNMENT SPECIFICATIONS | ||
| Torque | FASTENER TIGHTENING SPECIFICATIONS | ||
| Wheel & Tire | |||
| Wheel Lug Nut Torque | 140 lb ft (190 N.m) For tightening sequence, please see the figure under INSTALLATION PROCEDURE . |
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