Specifications Index

CAB & CHASSIS SIERRA, CAB & CHASSIS SILVERADO, SIERRA & SILVERADO SPECIFICATIONS INDEX

System		Specification/Procedure
Air Conditioning
Service		REFRIGERANT SYSTEM CAPACITIES (NON-HP2)
Torque		FASTENER TIGHTENING SPECIFICATIONS
Axle Nut/Hub Nut
Front		177 ft. lbs. (240 N.m)
Battery		BATTERY USAGE
Brakes
Bleeding Sequence		HYDRAULIC BRAKE SYSTEM BLEEDING (MANUAL)
Disc Brakes
	Service Specifications	DISC BRAKE COMPONENT SPECIFICATIONS
	Torque	FASTENER TIGHTENING SPECIFICATIONS
Drum Brakes
	Service Specifications	DRUM BRAKE COMPONENT SPECIFICATIONS
	Torque	FASTENER TIGHTENING SPECIFICATIONS
Charging
Generator
	Non-Hybrid	CHARGING SYSTEM OPERATION
	Hybrid	CHARGING SYSTEM OPERATION
Torque
	Non-Hybrid	FASTENER TIGHTENING SPECIFICATIONS
	Hybrid	FASTENER TIGHTENING SPECIFICATIONS
Drive Belts
Adjustment		Serpentine Drive Belts Are Not Adjustable.
Belt Routing		See illustrations under 4.3L DRIVE BELT REPLACEMENT , See illustrations under 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L DRIVE BELT REPLACEMENT - ACCESSORY and AIR CONDITIONING COMPRESSOR BELT REPLACEMENT (V8) See illustrations under 6.6L DRIVE BELT REPLACEMENT
Engine Cooling
General Service Specifications		NA
	Radiator Cap Pressure	Specification is stamped on pressure cap
	Thermostat R & I	ENGINE COOLANT THERMOSTAT REPLACEMENT
	Water Pump R & I
	4.3L, 4.8L, 5.3L, 6.0L or 6.2L	4.3L WATER PUMP REPLACEMENT (LU3) 4.8L, 5.3L WATER PUMP REPLACEMENT (LH6, LY2, LY5, AND LMG) 6.0L & 6.2L WATER PUMP REPLACEMENT (LY6, L76, AND L92) 6.0L Hybrid WATER PUMP REPLACEMENT (LFA)
	6.6L Diesel	WATER PUMP REPLACEMENT (LMM)
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
	Oil Pressure	Oil Pressure - at 1,000 RPM 6 psi (42 kPa) Oil Pressure - at 2,000 RPM 18 psi (125 kPa) Oil Pressure - at 4,000 RPM 24 psi (166 kPa)
	Overhaul	ENGINE MECHANICAL SPECIFICATIONS
	Torque	FASTENER TIGHTENING SPECIFICATIONS
4.8L, 5.3L, 6.0L, 6.2L, or 7.0L
	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
	Oil pressure	Oil Pressure - at 1,000 RPM 6 psi (42 kPa) Oil Pressure - at 2,000 RPM 18 psi (125 kPa) Oil Pressure - at 4,000 RPM 24 psi (166 kPa)
Overhaul		See appropriate application under SPECIFICATIONS .
	Torque	FASTENER TIGHTENING SPECIFICATIONS
6.6L Diesel
	Compression	ENGINE COMPRESSION TEST
	Oil pressure	Minimum- Hot - at idle 14 psi (98 kPa) Minimum - 1800 RPM 42 psi (294 kPa)
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 Plate Torque
4.3L		74 ft lbs (100 N.m)
4.8L, 5.3L, 6.0L, 6.2L, or 7.0L
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		Plus an additional 60 degrees
Final Pass		Plus an additional 60 degrees
Fuel System
Pressure Specification		4.3L 50-60 psi (345-414 kPa) 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L 50-60 psi (345-414 kPa) 6.6L See Test Procedure below
	Fuel Pressure Test Procedure	4.3L See FUEL SYSTEM DIAGNOSIS 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L See FUEL SYSTEM DIAGNOSIS (W/O FPCM) and FUEL SYSTEM DIAGNOSIS (W/FPCM) 6.6L FUEL SYSTEM DIAGNOSIS
Fuel Filter Location		4.3L The fuel filter is contained in the fuel sender assembly inside the fuel tank 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L The fuel filter is contained in the fuel sender/module assembly inside the fuel tank 6.6L The fuel filter is located on the rocker cover
	Fuel Filter R & I
	4.3L	4.3L See FUEL SENDER ASSEMBLY REPLACEMENT (REGULAR CAB W/34 GAL TANK) , FUEL TANK PRESSURE SENSOR REPLACEMENT (EXTENDED CAB W/26 GAL TANK) or FUEL SENDER ASSEMBLY REPLACEMENT (EXTENDED CAB W/26 GAL TANK)
	4.8L, 5.3L, 6.0L, 6.2L, or 7.0L	4.8L, 5.3L, 6.0L, 6.2L, or 7.0L See FUEL TANK FUEL PUMP MODULE REPLACEMENT (15 REG CAB W/26 GAL TANK) , FUEL TANK FUEL PUMP MODULE REPLACEMENT (15 EXT/CREW CAB W/26 GAL TANK) , FUEL TANK FUEL PUMP MODULE REPLACEMENT (25 EXT/CREW CAB W/26 GAL TANK) , FUEL TANK FUEL PUMP MODULE REPLACEMENT (15/25 REG/EXT/CREW CAB W/34 GAL TANK) or FUEL TANK FUEL PUMP MODULE REPLACEMENT (35 REG/EXT/CREW CAB W/34 GAL TANK)
	6.6L	FUEL FILTER REPLACEMENT
Ignition
Firing Order & Cylinder Identification
4.3L		FIRING ORDER & CYLINDER IDENTIFICATION
4.8L, 5.3L, 6.0L, 6.2L, or 7.0L		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, 6.2L, or 7.0L 397-1,337 ohms 6.6 L NA
Ignition Wires (Routing)
4.3L		See illustrations under SPARK PLUG WIRE REPLACEMENT
4.8L, 5.3L, 6.0L, 6.2L, or 7.0L		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, 6.2L, or 7.0L (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 Lb. Ft. (190 N.m)