Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Chevrolet >> 2021 >> Express 2500 Base, Van Cargo Extended, 2.8L Eng VIN 1 >> Repair and Diagnosis >> General Information >> Specifications Index >> Common Specs & Procedures >> Common Specs & Procedures Index

Common Specs & Procedures Index

COMMON SPECS & PROCEDURES

SYSTEM SPECIFICATION/PROCEDURE
Air Conditioning 
Service APPROXIMATE FLUID CAPACITIES
Torque FASTENER SPECIFICATIONS
Battery  BATTERY INSPECTION/TEST , or BATTERY ELECTRICAL DRAIN/PARASITIC LOAD TEST
Brakes 
Bleeding Sequence RIGHT REAR, LEFT REAR, RIGHT FRONT, LEFT FRONT
See HYDRAULIC BRAKE SYSTEM BLEEDING (PRESSURE) , or HYDRAULIC BRAKE SYSTEM BLEEDING (MANUAL)
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 2.8L Diesel 
See the figure under DRIVE BELT REPLACEMENT
4.3L 
See the figure under DRIVE BELT REPLACEMENT - ACCESSORY
6.6L 
See the figure under ACCESSORY DRIVE PRIMARY BELT REPLACEMENT , ACCESSORY DRIVE AUXILIARY BELT REPLACEMENT
Engine Cooling 
General Service Specifications SPECIFICATIONS
Radiator Cap Pressure PRESSURE CAP TESTING
Thermostat R & I
2.8L Diesel ENGINE COOLANT THERMOSTAT REPLACEMENT (LWN)
4.3L WATER PUMP INLET REPLACEMENT (LV1)
6.6L WATER PUMP INLET REPLACEMENT (L8T)
Water Pump R & I
2.8L Diesel WATER PUMP REPLACEMENT (LWN)
4.3L WATER PUMP REPLACEMENT (LV1)
6.6L WATER PUMP REPLACEMENT (L8T)
Engine Mechanical 
2.8L Diesel
Compression ENGINE COMPRESSION TEST
Oil Pressure Minimum - Warm - @ Idle - 70 kPa (10 psi)
Oil Pressure - Minimum - @ 3800 RPM - 250 kPa (36 psi)
Overhaul ENGINE MECHANICAL SPECIFICATIONS
Torque FASTENER SPECIFICATIONS
4.3L
Compression ENGINE COMPRESSION TEST
Oil Pressure - Minimum - Hot 152 kPa at 1000 engine RPM (22 psig at 1000 engine RPM)
207 kPa at 2000 engine RPM (30 psig at 2000 engine RPM)
228 kPa at 3000 engine RPM (33 psig at 3000 engine RPM)
Overhaul ENGINE MECHANICAL SPECIFICATIONS (LV1)
Torque FASTENER SPECIFICATIONS
6.6L
Compression ENGINE COMPRESSION TEST
Oil Pressure - Minimum - Hot 152 kPa at 1000 engine RPM (22 psig at 1000 engine RPM)
207 kPa at 2000 engine RPM (30 psig at 2000 engine RPM)
228 kPa at 3000 engine RPM (33 psig at 3000 engine RPM)
Overhaul 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 - 2.8L Diesel  1st Pass - 50 N.m (37 lb ft)
2nd Pass - Loosen 90 Degrees
3rd Pass - 25 N.m (18 lb ft)
Final Pass - Tighten 60 Degrees
Flywheel/Flex Plate/Drive Plate Torque - 4.3L  First Pass - 15 N.m (11 lb ft)
Second Pass - 30 N.m (30 lb ft)
Final Pass - Tighten 30 degrees
Flywheel/Flex Plate/Drive Plate Torque - 6.6L  First Pass - 15 N.m (11 lb ft)
Second Pass - 30 N.m (30 lb ft)
Final Pass - Tighten 45 degrees
Fuel System 
Pressure Specification And Test Procedure 2.8L Diesel 
See CIRCUIT/SYSTEM VERIFICATION , CIRCUIT/SYSTEM VERIFICATION - HIGH PRESSURE SIDE
4.3L 
CIRCUIT/SYSTEM VERIFICATION
6.6L 
, or CIRCUIT/SYSTEM VERIFICATION
Fuel Filter Location 2.8L Diesel 
See figure under FUEL FILTER REPLACEMENT
4.3L 
Fuel filter is part of the fuel tank fuel pump module
6.6L 
Fuel filter is part of the fuel tank fuel pump module
Fuel Filter R & I 2.8L Diesel 
See FUEL FILTER REPLACEMENT
4.3L 
FUEL TANK FUEL PUMP MODULE REPLACEMENT (SHORT/LONG WHEEL BASE) or FUEL TANK FUEL PUMP MODULE REPLACEMENT (CHASSIS CAB REAR TANK) or FUEL TANK FUEL PUMP MODULE REPLACEMENT (CHASSIS CAB FRONT TANK)
6.6L 
FUEL TANK FUEL PUMP MODULE REPLACEMENT (SHORT/LONG WHEELBASE) or FUEL TANK FUEL PUMP MODULE REPLACEMENT (CHASSIS CAB FRONT TANK) or FUEL TANK FUEL PUMP MODULE REPLACEMENT (CHASSIS CAB REAR TANK)
Ignition 
Firing Order & Cylinder Identification FIRING ORDER & CYLINDER IDENTIFICATION
Ignition Wires (Resistance) 4.3L & 6.6L
170-220 Ω per 25.4 mm (1.0 in)
Ignition Wires (Routing) Straight down to spark plug. See figures under SPARK PLUG WIRE REPLACEMENT 4.3L , or SPARK PLUG WIRE REPLACEMENT 6.6L
Spark Plug 
4.3L & 6.6L (Refer to Electronic Parts Catalogue)
Gap 0.95-1.10 mm (0.037-0.043 in)
Torque 20 N.m (15 lb ft)
Starting 
Starter STARTER REPLACEMENT (LWN) or STARTER REPLACEMENT (LV1) or STARTER REPLACEMENT (L8T)
Torque FASTENER SPECIFICATIONS
Wheel Alignment 
Adjustment Specifications WHEEL ALIGNMENT SPECIFICATIONS
Torque FASTENER SPECIFICATIONS
Wheel & Tire 
Wheel Lug Nut Torque W/O Dual Rear Wheels
190 N.m (140 lb ft)
For tightening sequence, please see the Wheel Nut Tightening Sequence figure under INSTALLATION PROCEDURE
W/Dual Rear Wheels
170 N.m (125 lb ft)
For tightening sequence, please see the Wheel Nut Tightening Sequence figure under INSTALLATION PROCEDURE