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Common Specs And Procedures Index

COMMON SPECS AND PROCEDURES

SYSTEM SPECIFICATION/PROCEDURE
Air Conditioning 
Service APPROXIMATE FLUID CAPACITIES
Torque FASTENER SPECIFICATIONS
Wheel Drive shaft Nut 
Front First Pass: 330 N.m (244 lb ft)
Second Pass: loosen 45 degrees
Final Pass: 270 N.m (199 lb ft)
Battery  BATTERY ELECTRICAL DRAIN/PARASITIC LOAD TEST
Brakes 
Bleeding Sequence RIGHT REAR, LEFT REAR, RIGHT FRONT, LEFT FRONT
See HYDRAULIC BRAKE SYSTEM BLEEDING .
Disc Brakes
Service Specifications DISC BRAKE COMPONENT SPECIFICATIONS
Torque FASTENER SPECIFICATIONS
Charging 
Generator CHARGING SYSTEM TEST
Torque FASTENER SPECIFICATIONS
Drive Belts 
Adjustment Serpentine belt used, not adjustable.
Drive Belt Routing See the figure under ACCESSORY DRIVE AUXILIARY BELT REPLACEMENT ,, OR ACCESSORY DRIVE PRIMARY BELT REPLACEMENT (SINGLE GENERATOR) , ACCESSORY DRIVE PRIMARY BELT REPLACEMENT (DUAL GENERATOR) , DRIVE BELT TENSIONER REPLACEMENT - ACCESSORY
Engine Cooling 
General Service Specifications SPECIFICATIONS
Radiator Cap Pressure RADIATOR SURGE TANK CAP TESTING
S
Thermostat R & I
WATER PUMP INLET REPLACEMENT (L8T) OR, ENGINE COOLANT THERMOSTAT HOUSING REPLACEMENT (L5P - KHF) OR ENGINE COOLANT THERMOSTAT HOUSING REPLACEMENT (L5P & KHF) OR ENGINE COOLANT THERMOSTAT REPLACEMENT (L5P)
Water Pump R & I
WATER PUMP REPLACEMENT (L8T) OR WATER PUMP REPLACEMENT (L5P) OR WATER PUMP REPLACEMENT (L5P & ULV) OR WATER PUMP REPLACEMENT (L5P & GA4)
Engine Mechanical 
Compression ENGINE COMPRESSION TEST (L5P) or ENGINE COMPRESSION TEST (L8T)
(L5P) - Oil Pressure - Minimum - Hot @ 1000 RPM: 172 kPa (25 psi)
@ 2000 RPM: 200 kPa (29 psi)
(L8T) - Oil Pressure - Minimum - Hot @ 1000 RPM: 152 kPa (22 psi)
@ 2000 RPM: 207 kPa (30 psi)
@ 3000 RPM: 228 kPa (33 psi)
Overhaul ENGINE MECHANICAL SPECIFICATIONS (L5P) or ENGINE MECHANICAL SPECIFICATIONS (L8T)
Torque FASTENER SPECIFICATIONS (L5P) or FASTENER SPECIFICATIONS (L8T)
Fluid Specifications  See FLUIDS under MAINTENANCE/FLUIDS tab. From within Manager or Service Writer, click the "30/60/90 Interval" or "Maint." button.
(L5P) - Flex Plate Torque  First Pass - 80 N.m (59 lb ft)
Second Pass: 60 degrees using EN-45059 Angle Meter
Final Pass: 60 degrees using EN-45059 Angle Meter
(L8T) - Flex Plate Torque  First Pass - 30 N.m (22 lb ft)
Final Pass - Additional 45 degrees
Fuel System 
Fuel Pressure Test Procedure for L5P FUEL SYSTEM DIAGNOSIS see CIRCUIT/SYSTEM VERIFICATION for L8T FUEL SYSTEM DIAGNOSIS (WITH N2M) see CIRCUIT/SYSTEM VERIFICATION or L8T FUEL SYSTEM DIAGNOSIS (WITH N2N) see CIRCUIT/SYSTEM VERIFICATION
Fuel Filter Location Fuel filter is part of the fuel tank fuel pump module
Fuel Filter R & I (L5P) FUEL TANK FUEL PUMP MODULE REPLACEMENT (CREW CAB, STANDARD BED) , or FUEL TANK FUEL PUMP MODULE REPLACEMENT (DOUBLE CAB, STANDARD BED) , or FUEL TANK FUEL PUMP MODULE REPLACEMENT (REGULAR CAB) , or FUEL TANK FUEL PUMP MODULE REPLACEMENT (CHASSIS CAB, FRONT) , or FUEL TANK FUEL PUMP MODULE REPLACEMENT (CHASSIS CAB, AUXILIARY) , or FUEL TANK FUEL PUMP MODULE REPLACEMENT (CREW CAB, LONG BED) , or FUEL TANK FUEL PUMP MODULE REPLACEMENT (DOUBLE CAB, LONG BED)
(L8T) FUEL TANK FUEL PUMP MODULE REPLACEMENT (CREW CAB, LONG BED) , OR FUEL TANK FUEL PUMP MODULE REPLACEMENT (CREW CAB, SHORT BED) , OR FUEL TANK FUEL PUMP MODULE REPLACEMENT (REGULAR CAB) , OR FUEL TANK FUEL PUMP MODULE REPLACEMENT (DOUBLE CAB) , OR FUEL TANK FUEL PUMP MODULE REPLACEMENT (CHASSIS CAB) , OR FUEL TANK FUEL PUMP MODULE REPLACEMENT - AUXILIARY FUEL TANK
Ignition 
Firing Order & Cylinder Identification FIRING ORDER & CYLINDER IDENTIFICATION
Ignition Wires (Resistance) Coil on plug
Ignition Wires (Routing) Coil on plug
(L8T) - Spark Plug 
Gap 0.037 - 0.043 in (0.95 - 1.10 mm)
Torque 20 N.m (15 lb ft)
Starting 
Starter STARTER REPLACEMENT (L8T) OR STARTER REPLACEMENT (L5P) OR STARTER REPLACEMENT (L5P & ULV)
Torque FASTENER SPECIFICATIONS
Wheel Alignment 
Adjustment Specifications WHEEL ALIGNMENT SPECIFICATIONS
Torque FASTENER SPECIFICATIONS
Wheel & Tire 
Wheel Lug Nut Torque 190 N.m (140 lb ft)
For tightening sequence, please alternately and evenly tighten the 8 wheel nuts
GM5256186Courtesy of GENERAL MOTORS COMPANY