Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2002EXPRESS 1/2 TON VAN V6-4.3L VIN WREPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSCOMPUTERS AND CONTROL SYSTEMS
2002 Chevrolet Express 1/2 Ton Van V6-4.3L VIN W
Computers and Control Systems
2002 Chevrolet Express 1/2 Ton Van V6-4.3L VIN WSECTION Computers and Control Systems
Fastener Tightening Specifications
| Accelerator Control Cable Bracket Fasteners | 12 N.m |
| Accelerator Pedal Assembly Mounting Bolts | 5 N.m |
| AIR Hose Assembly Mounting Bolts | 25 N.m |
| AIR Pump Assembly Mounting Bolts | 25 N.m |
| AIR Hose Assembly Retainer Bolts | 40 N.m |
| AIR Hose Retainer Clip Locknut | 10 N.m |
| AIR Pump Assembly Hold-Down Block Bolt | 25 N.m |
| AIR Solenoid Mounting Bracket Fastener | 4 N.m |
| Air Cleaner Assembly Bolts | 18 N.m |
| Air Cleaner Outlet Duct Nut | 2 N.m |
| Air Cleaner Outlet Resonator Adapter Stud | 8 N.m |
| Air Shield Mounting Bolts | 33 N.m |
| Camshaft Position Sensor Screws | 2.2 N.m |
| Crankshaft Position Sensor Mounting Bolt | 8 N.m |
| Distributor Cap Screws | 2.4 N.m |
| Distributor Mounting Clamp Bolt | 25 N.m |
| Distributor Rotor Retaining Screws | 2 N.m |
| Distributor Rotor to Reluctor Wheel Screws | 19.5 N.m |
| Engine Coolant Temperature (ECT) Sensor | 20 N.m |
| Exhaust Gas Recirculation (EGR) Pipe to Exhaust Manifold Fittings | 30 N.m |
| EGR Pipe to Intake Manifold Fittings - First Pass | 10 N.m |
| EGR Pipe to Intake Manifold Fittings - Second Pass | 25 N.m |
| EGR Retaining Fastener to Pipe Bracket | 25 N.m |
| EGR Valve Attaching Bolts | 25 N.m |
| Evaporative Emission (EVAP) Canister Bracket Bolt | 12 N.m |
| Fuel and EVAP Pipe Retainer Nut | 28 N.m |
| Fuel Fill Hose Clamp | 2.75 N.m |
| Fuel Injector Retainer Locknuts | 3 N.m |
| Fuel Pipe Attaching Nuts | 27 N.m |
| Fuel Pipe Bracket Retaining Bolt | 6 N.m |
| Fuel Pipe Fittings | 27 N.m |
| Fuel Pipe Retainer Clip Nut | 28 N.m |
| Fuel Pipe Retainer Nuts | 3 N.m |
| Fuel Pipe Retaining Clips Bolts | 12 N.m |
| Fuel Tank Strap Attaching Bolts | 20.5 N.m |
| Heated Oxygen Sensor (HO2S) | 42 N.m |
| Idle Air Control (IAC) Valve Attaching Fastener | 3 N.m |
| Ignition Coil Mounting Screws | 11 N.m |
| Ignition Control Module (ICM) Mounting Screws | 3.5 N.m |
| Knock Sensor (KS) Bolt | 25 N.m |
| Mass Air Flow (MAF) Sensor Clamps | 4 N.m |
| Powertrain Control Module (PCM) Connector End Fasteners | 8 N.m |
| Purge Valve Mounting Nuts | 12 N.m |
| Spark Plugs - Used Heads | 15 N.m |
| Spark Plugs - New Aluminum Heads | 20 N.m |
| Spark Plugs - New Iron Heads | 30 N.m |
| Steering Linkage Shield Mounting Bolts | 33 N.m |
| Throttle Body Assembly Retaining Studs | 9 N.m |
| Throttle Position (TP) Sensor Fasteners | 2 N.m |
| Upper Manifold Bolts | 8 N.m |
| Upper Manifold Nuts | 8 N.m |
| Vacuum Module Attaching Bolts | 8 N.m |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.