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 MANUALSCHEVROLET2000CHEVY EXPRESS G3500, VAN CARGO, 4.3 WREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROLS - SYSTEM & COMPONENT TESTSCOMPONENT LOCATIONSCOMPONENT LOCATIONS 4.3L (VIN W) "L" & "M" SERIES
2000 Chevrolet Chevy Express G3500, Van Cargo, 4.3 W
Component Locations 4.3L (VIN W) "L" & "M" Series
2000 Chevrolet Chevy Express G3500, Van Cargo, 4.3 WSECTION Component Locations 4.3L (VIN W) "L" & "M" Series
COMPONENT LOCATIONS 4.3L (VIN W) "L" & "M" SERIES
| Component | Location |
|---|---|
| A/C Compressor Clutch Relay | In Underhood Fuse/Relay Block |
| A/C High Pressure Cut-Off Switch | On Rear Of A/C Compressor |
| A/C Low Pressure Cut-Out Switch | On Top Of A/C Receiver Dryer |
| Camshaft Position (CMP) Sensor | Side of Distributor |
| Crankshaft Position (CKP) Sensor | Behind & To Right Of Crankshaft Pulley |
| Cruise Control Module | Center Of Dash, Left Of Windshield Wiper Module |
| Data Link Connector (DLC) | Under Left Side Of Instrument Panel |
| Distributor | Top Rear Of Engine |
| EGR Valve Solenoid | Top Of Engine, Left Of Generator |
| Engine Coolant Temperature (ECT) Sensor | Side Of Linear EGR Valve Solenoid |
| EVAP Canister Purge Solenoid | Top Of Engine, Near MAP Sensor |
| EVAP Canister Vent Solenoid | Left Frame Rail, Near Fuel Filter |
| Fuel Injectors | On Intake Manifold, Under Manifold Cover |
| Fuel Pump Relay | In Underhood Fuse/Relay Block |
| Heated Oxygen Sensor (HO2S) Bank 1, Sensor 1 | Left Front Exhaust Pipe |
| Heated Oxygen Sensor (HO2S) Bank 1, Sensor 3 | Rear Of Catalytic Converter |
| Heated oxygen Sensor (HO2S) Bank 2, Sensor 1 | Right Front Exhaust Pipe |
| Heater & A/C Control Module | Center Of Instrument Panel, At Heater Control |
| Idle Air Control (IAC) Valve | Left Rear Of Throttle Body |
| Ignition Coil | Top Of Engine, Behind Generator |
| Ignition Control Module | Top Of Engine, In Front Of Coil |
| Intake Air Temperature (IAT) Sensor | Top Of Air Intake Duct |
| Knock Sensor | Left Rear Of Distributor, On Engine Block |
| Manifold Absolute Pressure (MAP) Sensor | Top Of Engine, Near Ignition Coil |
| Mass Airflow (MAF) Sensor | Front Of Air Intake Duct |
| Oil Pressure Switch | Rear Of Engine, Left Of Distributor |
| Throttle Position (TP) Sensor | On Left Side Of Throttle Body |
| Underhood Fuse/Relay Block | Left Front Side Of Engine Compartment, Near Battery |
| Vehicle Control Module (VCM) | Left Side Of Engine Compartment, Near Battery |
| Vehicle Speed Sensor | Rear Of Transmission |
RENDER: 1.0x
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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.