Specifications Index
EXPRESS & SAVANA SPECIFICATIONS INDEX
| System | Specification/Procedure | ||
|---|---|---|---|
| Air Conditioning | |||
| Service | REFRIGERANT SYSTEM CAPACITIES | ||
| Torque | FASTENER TIGHTENING SPECIFICATIONS | ||
| Battery | BATTERY USAGE | ||
| Brakes | |||
| Bleeding Sequence | RR-LR-RF-LE. 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 | 4.3L See illustrations under DRIVE BELT REPLACEMENT 4.8L, 5.3L & 6.0L See illustrations under DRIVE BELT REPLACEMENT - ACCESSORY and AIR CONDITIONING COMPRESSOR BELT REPLACEMENT 6.6L See illustrations underDRIVE BELT REPLACEMENT |
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| Engine Cooling | |||
| General Service Specifications | NA | ||
| Radiator Cap Pressure | Specification is stamped on pressure cap | ||
| Thermostat R & I | |||
| 4.3L | ENGINE COOLANT THERMOSTAT REPLACEMENT (4.3L) | ||
| 4.8L, 5.3L & 6.0L | ENGINE COOLANT THERMOSTAT HOUSING REPLACEMENT | ||
| 6.6L | ENGINE COOLANT THERMOSTAT REPLACEMENT (6.6L (LLY, LBZ)) | ||
| Water Pump R & I | |||
| 4.3L | WATER PUMP REPLACEMENT (4.3L ENGINE) | ||
| 4.8L, 5.3L & 6.0L | See REPAIR INSTRUCTIONS in ENGINE COOLING article. | ||
| 6.6L | WATER PUMP REPLACEMENT (6.6L ENGINE) | ||
| Engine Mechanical | |||
| 4.3L | |||
| Compression | No cylinder should read less than 100 psi (690 kpa) No cylinder should be less than 70 percent of the highest cylinder ENGINE COMPRESSION TEST |
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| Oil Pressure | Oil Pressure - at 1,000 RPM 6 psi (43 kPa) Oil Pressure - at 2,000 RPM 18 psi (125 kPa) Oil Pressure - at 4,000 RPM 24 psi (166 kPa) |
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| Overhaul | ENGINE MECHANICAL SPECIFICATIONS | ||
| Torque | FASTENER TIGHTENING SPECIFICATIONS | ||
| 4.8L, 5.3L & 6.0L | |||
| Compression | No cylinder should read less than 100 psi (690 kpa) No cylinder should be less than 70 percent of the highest cylinder ENGINE COMPRESSION TEST |
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| Oil Pressure | Oil Pressure - at 1,000 RPM 6 psi (43 kPa) Oil Pressure - at 2,000 RPM 18 psi (125 kPa) Oil Pressure - at 4,000 RPM 24 psi (166 kPa) |
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| Overhaul | See appropriate application under ENGINE MECHANICAL SPECIFICATIONS | ||
| Torque | FASTENER TIGHTENING SPECIFICATIONS | ||
| 6.6L | |||
| Compression | Minimum compression in any one cylinder is 2069 kPa (300 psi) There should not be more than 345 kPa (50 psi) difference from the average compression See ENGINE COMPRESSION TEST |
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| Oil pressure | Minimum- Hot - at idle 14 psi (98 kPa) Minimum - 1800 RPM 42 psi (204 kPa) |
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| Overhaul | ENGINE MECHANICAL SPECIFICATIONS | ||
| 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 | |||
| 4.3L | 74 ft. lbs. (100 N.m) | ||
| 4.8L, 5.3L & 6.0L | |||
| First Pass | 15 ft. lbs (20 N.m) | ||
| Second Pass | 37 ft. lbs. (50 N.m) | ||
| Final Pass | 74 ft. lbs (100 N.m) | ||
| 6.6L | |||
| First Pass | 58 ft. lbs. (79 N.m) | ||
| Second Pass | + an additional 60 degrees | ||
| Final Pass | + an additional 60 degrees | ||
| Fuel System | |||
| Pressure Specification | 4.3L 50-60 psi (345-414 kPa) 4.8L, 5.3L & 6.0L 50-60 psi (345-414 kPa) 6.6L See Test Procedure below |
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| Fuel Pressure Test Procedure | 4.3L See Fuel Pressure Gage Installation and Removal
and FUEL SYSTEM DIAGNOSIS 4.8L, 5.3L & 6.0L See Fuel Pressure Gage Installation and Removal and FUEL SYSTEM DIAGNOSIS 6.6L See FUEL SYSTEM DIAGNOSIS |
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| Fuel Filter Location | 4.3L The fuel filter is contained in the fuel sender/module assembly inside the fuel tank 4.8L, 5.3L & 6.0L The fuel filter is contained in the fuel sender/module assembly inside the fuel tank 6.6L There are 2 fuel filters, a cartridge style located in the diesel fuel conditioning module (DFCM) and a screw-on style fuel filter. See R & I below |
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| Fuel Filter R & I | 4.3L See FUEL TANK FUEL PUMP MODULE REPLACEMENT 4.8L, 5.3L & 6.0L FUEL TANK FUEL PUMP MODULE REPLACEMENT 6.6L FUEL FILTER REPLACEMENT |
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| Ignition | |||
| Firing Order & Cylinder Identification | |||
| 4.3L | FIRING ORDER & CYLINDER IDENTIFICATION | ||
| 4.8L, 5.3L & 6.0L | FIRING ORDER & CYLINDER IDENTIFICATION | ||
| 6.6L | FIRING ORDER & CYLINDER IDENTIFICATION | ||
| Ignition Wires (Resistance) | 4.3L 1,200-1,500 ohms per ft 4.8L, 5.3L & 6.0L 397-1,337 ohms 6.6L NA |
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| Ignition Wires (Routing) | |||
| 4.3L | See illustrations under SPARK PLUG WIRE REPLACEMENT | ||
| 4.8L, 5.3L & 6.0L | Spark plugs wires route directly down from coil to spark plug | ||
| 6.6L | NA | ||
| Spark Plug | |||
| 4.3L (Type GM P/N 12607234 or AC Delco P/N 41-993) | |||
| Gap | 0.060 in (1.5 mm) | ||
| Torque | 11 lb ft (15 N.m) | ||
| 4.8L, 5.3L & 6.0L (Type GM P/N 12571164 or AC Spark Plug P/N 41-985) | |||
| Gap | 0.040 in (1.02 mm) | ||
| Torque | 11 lb ft (15 N.m) | ||
| Starting | |||
| Starter | NA | ||
| Torque | FASTENER TIGHTENING SPECIFICATIONS | ||
| Wheel Alignment | |||
| Adjustment Specifications | WHEEL ALIGNMENT SPECIFICATIONS | ||
| Torque | FASTENER TIGHTENING SPECIFICATIONS | ||
| Wheel & Tire | |||
| Wheel Lug Nut Torque | 140 ft. lbs. (190 N.m) | ||