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Home >> Chevrolet >> 1997 >> Chevy Express G3500, Van Cargo Extended, 7.4 J >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System & Component Testing - 7.4L (G Series) >> Component Locations

Component Locations

COMPONENT LOCATIONS

Component Location
A/C Compressor Low Pressure Cut-Off Switch In Low Pressure Refrigerant Line
A/C High Pressure Cut-Off Switch On Rear Of A/C Compressor
Air Injection Reaction Relay In Underhood Fuse/Relay Center At Left Rear Of Engine Compartment On Wheelwell
Camshaft Position (CMP) Sensor In Distributor
Crankshaft Position (CKP) Sensor Lower Right Front Of Engine Block, Near Crankshaft
Data Link Connector Under Left Side Of Instrument Panel
Distributor Top Of Engine, Near Bulkhead
EGR Valve Right Center Of Intake Manifold
Engine Coolant Temperature (ECT) Sensor Right Front Of Engine Near Thermostat Housing
EVAP Purge Solenoid Vacuum Switch Top Right Side Of Engine, Near EGR Valve
Fuel Injectors In Intake Manifold
Fuel Pump Oil Pressure Switch Rear Center Of Engine, Behind Distributor
Fuel Pump Prime Connector At Instrument Panel Harness, Near Fuse/Relay Center Breakout
Fuel Pump Relay In Underhood Fuse/Relay Center
Idle Air Control (IAC) Valve Attached To Right Rear Of Throttle Body
Ignition Coil Right Rear Side Of Engine
Intake Air Temperature (IAT) Sensor On Air Intake Duct
Knock Sensor Left Rear Side On Engine Block Or Right Side Engine Block, Below Exhaust Manifold, Forward Of Starter
Manifold Absolute Pressure (MAP) Sensor Top Center Of Intake Manifold Near Fuel Injectors
Mass Airflow (MAF) Sensor On Air Intake Duct Near Air Filter
Oxygen Sensors In Exhaust Pipe In Front & Rear Of Catalytic Converter
Throttle Position (TP) Sensor On Right Side Of Throttle Body
Underhood Fuse/Relay Center Left Rear Of Engine Compartment On Wheelwell
Vehicle Control Module (VCM) In Engine Compartment On Left Wheelwell
Vehicle Speed Sensor Left Rear Side Of Transmission