Common Specs & Procedures Index
SIERRA & SILVERADO COMMON SPECS & PROCEDURES
| System | Specification/Procedure | ||
|---|---|---|---|
| Air Conditioning | |||
| Service | APPROXIMATE FLUID CAPACITIES | ||
| Torque | Automatic System FASTENER SPECIFICATIONS Manual System FASTENER SPECIFICATIONS |
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| Axle Nut/Hub Nut | |||
| Front Wheel Drive Shaft to Front Hub Nut (NEW) | 188 lb ft (255 N.m) | ||
| Battery | NA | ||
| Brakes | |||
| Bleeding Sequence | RR, LR, RF, LF. See HYDRAULIC BRAKE SYSTEM BLEEDING (MANUAL) HYDRAULIC BRAKE SYSTEM BLEEDING (PRESSURE) |
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| Disc Brakes | |||
| Service Specifications | DISC BRAKE COMPONENT SPECIFICATIONS | ||
| Torque | FASTENER SPECIFICATIONS | ||
| Charging | |||
| Generator | NA | ||
| Torque | Except HP5 FASTENER SPECIFICATIONS HP5 FASTENER SPECIFICATIONS |
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| Drive Belts | |||
| Adjustment | Serpentine Drive Belt Is Not Adjustable. | ||
| Drive Belt Routing | |||
| 4.3L | See illustration under DRIVE BELT REPLACEMENT - ACCESSORY | ||
| 5.3L, 6.2L | See illustration under DRIVE BELT REPLACEMENT - ACCESSORY | ||
| 6.0L | See illustration under DRIVE BELT REPLACEMENT - ACCESSORY | ||
| 6.6L | See illustration under DRIVE BELT REPLACEMENT (DUAL GENERATORS) DRIVE BELT REPLACEMENT (SINGLE GENERATOR) |
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| Engine Cooling | |||
| General Service Specifications | NA | ||
| Radiator Cap Pressure | Pressure Specification is Stamped on Radiator Cap | ||
| Thermostat R & I | |||
| 4.3L | ENGINE COOLANT THERMOSTAT HOUSING REPLACEMENT (LV3, L8B & L83 WITH THERMOSTAT) | ||
| 5.3L, 6.2L | ENGINE COOLANT THERMOSTAT HOUSING REPLACEMENT (LV3, L8B & L83 WITH THERMOSTAT) | ||
| 6.0L | ENGINE COOLANT THERMOSTAT REPLACEMENT (L96, LC8) | ||
| 6.6L | ENGINE COOLANT THERMOSTAT REPLACEMENT (L5P) | ||
| Water Pump R & I | |||
| 4.3L | WATER PUMP REPLACEMENT (LV3) | ||
| 5.3L, 6.2L | WATER PUMP REPLACEMENT (L83, L86, L8B) | ||
| 6.0L | WATER PUMP REPLACEMENT (L96, LC8) | ||
| 6.6L | WATER PUMP REPLACEMENT (L5P) | ||
| Engine Mechanical | |||
| 4.3L | |||
| Compression | The minimum compression in any one cylinder should not be less than 70 percent of the highest cylinder. No cylinder should read less than 690 kpa (100 psi). See ENGINE COMPRESSION TEST | ||
| Oil Pressure - At 1000 RPM Oil Pressure - At 2000 RPM Oil Pressure - At 3000 RPM |
22 psi (152 kPa) 30 psi (207 kPa) 33 psi (228 kPa) |
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| Overhaul | ENGINE MECHANICAL SPECIFICATIONS |
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| Torque | FASTENER SPECIFICATIONS | ||
| 5.3L & 6.2L | |||
| Compression | The minimum compression in any one cylinder should not be less than 70 percent of the highest cylinder. No cylinder should read less than 690 kpa (100 psi). See . | ||
| Oil Pressure - At 1000 RPM Oil Pressure - At 2000 RPM Oil Pressure - At 3000 RPM |
22 psi (152 kPa) 30 psi (207 kPa) 33 psi (228 kPa) |
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| Overhaul | 5.3L ENGINE MECHANICAL SPECIFICATIONS (L83) ENGINE MECHANICAL - 4.3L (LV3) 6.2L ENGINE MECHANICAL SPECIFICATIONS (L86) |
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| Torque | FASTENER SPECIFICATIONS | ||
| 6.0L | |||
| Compression | The minimum compression in any one cylinder should not be less than 70 percent of the highest cylinder. No cylinder should read less than 690 kpa (100 psi). See ENGINE COMPRESSION TEST . | ||
| Oil Pressure - At 1000 RPM Oil Pressure - At 2000 RPM Oil Pressure - At 3000 RPM |
22 psi (152 kPa) 30 psi (207 kPa) 33 psi (228 kPa) |
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| Overhaul | 6.0L ENGINE MECHANICAL SPECIFICATIONS (L96 VIN G) or ENGINE MECHANICAL SPECIFICATIONS (LC8 VIN B) | ||
| Torque | FASTENER SPECIFICATIONS | ||
| 6.6L | |||
| Compression | The minimum compression in any one cylinder is 2069 kPa (300 psi). There should not be more than 345 kPa (50 psi) difference between a suspect cylinder and the average compression of all 8 cylinders. See ENGINE COMPRESSION TEST . | ||
| Oil Pressure - At Idle Oil Pressure - At 1800 RPM |
7 psi (48 kPa) 28 psi (193 kPa) |
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| Overhaul | 6.6L ENGINE MECHANICAL SPECIFICATIONS | ||
| Torque | FASTENER 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 | Step 1 = 11 ft lb (15 N.m) Step 2 = 22 ft lb (30 N.m) Step 3 = additional 30 degrees |
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| 5.3L, 6.2L | Step 1 = 11 ft lb (15 N.m) Step 2 = 22 ft lb (30 N.m) Step 3 = additional 45 degrees |
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| 6.0L | Step 1 = 15 ft lb (20 N.m) Step 2 = 37 ft lb (50 N.m) Step 3 = 74 ft lb (100 N.m) |
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| 6.6L | Step 1 = 59 ft lb (80 N.m) Step 2 = 60 Degrees Step 3 = 60 Degrees |
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| Fuel System | |||
| Pressure Specification key ON engine OFF read on scan tool | |||
| 4.3L, 5.3L, 6.2L | 320-580 kPa (46-84 psi) | ||
| 6.0L (L96) | 345-414 kPa (50-60 psi) | ||
| Fuel Pressure Test Procedure | |||
| 4.3L | CIRCUIT/SYSTEM VERIFICATION | ||
| 5.3L, 6.2L | CIRCUIT/SYSTEM VERIFICATION . | ||
| 6.0L | CIRCUIT/SYSTEM VERIFICATION (L96) CIRCUIT/SYSTEM VERIFICATION (LC8) |
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| 6.6L | Low Pressure CIRCUIT/SYSTEM VERIFICATION High Pressure CIRCUIT/SYSTEM VERIFICATION |
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| Fuel Filter Location | |||
| 4.3L | The fuel filter is contained in the fuel sender assembly inside the fuel tank. There is no service interval for fuel filter replacement. | ||
| 5.3L, 6.2L | The fuel filter is contained in the fuel tank fuel pump module assembly inside the fuel tank. There is no service interval for fuel filter replacement. | ||
| 6.0L | The fuel filter is contained in the fuel tank fuel pump module assembly inside the fuel tank. There is no service interval for fuel filter replacement. | ||
| 6.6L | The fuel filter is contained in the Fuel Conditioning Module. | ||
| Fuel Filter R & I | |||
| 4.3L | The fuel filter is contained in the fuel sender assembly inside the fuel tank. There is no service interval for fuel filter replacement. | ||
| 5.3L, 6.2L | The fuel filter is contained in the fuel tank fuel pump module assembly inside the fuel tank. There is no service interval for fuel filter replacement. | ||
| 6.0L | The fuel filter is contained in the fuel tank fuel pump module assembly inside the fuel tank. There is no service interval for fuel filter replacement. | ||
| 6.6L | FUEL FILTER ASSEMBLY REPLACEMENT | ||
| Ignition | |||
| Firing Order & Cylinder Identification | See FIRING ORDER & CYLINDER IDENTIFICATION | ||
| Ignition Wires (Resistance) | 4.3L = 170-220 Ω per 25.4 mm (1.0 in) 5.3L, 6.2L = 397-1, 337 ohms 6.0L = 170-220 Ω per 25.4 mm (1.0 in) |
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| Ignition Wires (Routing) | |||
| 4.3L | See illustration under SPARK PLUG WIRE REPLACEMENT | ||
| 5.3L, 6.2L | Spark plug wires route directly from coil to spark plug. See SPARK PLUG WIRE REPLACEMENT | ||
| 6.0L | Spark plug wires route directly from coil to spark plug. See SPARK PLUG WIRE REPLACEMENT | ||
| Spark Plug | |||
| 4.3L (Type = Refer to Parts Catalogue) | |||
| Gap | 0.037-0.043 in (0.95-1.10 mm) | ||
| Torque | 15 ft. lb. (20 N.m) | ||
| 5.3L, 6.2L (Type = Refer to Parts Catalogue) | |||
| Gap | 0.037-0.043 in (0.95-1.10 mm) | ||
| Torque | 15 ft. lb. 20 N.m) | ||
| 6.0L (Type = Refer to Parts Catalogue) | |||
| Gap | 0.037-0.043 in (0.95-1.10 mm) | ||
| Torque | 11 ft. lb. 15 N.m) | ||
| Starting | |||
| Starter | N/A | ||
| Torque | FASTENER SPECIFICATIONS | ||
| Wheel Alignment | |||
| Adjustment Specifications | WHEEL ALIGNMENT SPECIFICATIONS | ||
| Torque | FASTENER SPECIFICATIONS | ||
| Wheel & Tire | |||
| Wheel Lug Nut Torque | 140 lb ft (190 N.m) For wheel nut tightening sequence, see appropriate illustration under TIRE AND WHEEL REMOVAL AND INSTALLATION |
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