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Home >> Chevrolet >> 2003 >> Avalanche 2500, 4WD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System & Component Testing - 8.1L >> Component Locations
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Component Locations

NOTE: For component locations refer to COMPONENT LOCATIONS  table or illustrations. See Fig 1 -Fig 10 .
COMPONENT LOCATIONS

Component Location
Acceleration Pedal Position Sensor Behind Accelerator Pedal
Body Control Module Below Steering Column
Camshaft Position Sensor Top Center Rear Of Engine
Crankshaft Position Sensor Lower Right Rear Of Engine
Data Link Connector Below Steering Column
EGR Valve Top Right Front Of Engine
Engine Coolant Temperature Sensor Left Front Of Cylinder Head
Engine Oil Level Switch Right Side Of Oil Pan
EVAP Canister Purge Solenoid Top Right Rear Of Engine
EVAP Canister Vent Solenoid Left Front Side Of Fuel Tank
Fuel Pump Relay In Underhood Junction Block
Fuel Tank Pressure Sensor In Fuel Tank
Heated Oxygen Sensor - Bank 1, Sensor 1 Left Exhaust Pipe, Ahead Of Catalytic Converter
Heated Oxygen Sensor - Bank 1, Sensor 2 Left Exhaust Pipe, After Catalytic Converter
Heated Oxygen Sensor - Bank 2, Sensor 1 Right Exhaust Pipe, Ahead Of Catalytic Converter
Heated Oxygen Sensor - Bank 2, Sensor 2 Right Exhaust Pipe, After Catalytic Converter
Knock Sensor 1 & 2 Under Intake Manifold
Manifold Absolute Pressure Sensor Top Rear Of Engine
Mass Airflow Sensor In Air Intake Duct
PCM Left Front Of Engine Compartment
Primary Fuel Pump/Level Sensor In Fuel Tank
Secondary Fuel Pump/Level Sensor In Fuel Tank
Throttle Actuator Control Module Near Front Of Engine Compartment
Throttle Actuator Control Motor Near Front Of Engine Compartment
Throttle Position Sensor (Dual Track) Near Front Of Engine Compartment
Vehicle Speed Sensor (2WD) Left Rear Of Transmission
Vehicle Speed Sensor Adapter (4WD) Left Side Of Transmission
Fig 1: Locating Accelerator Pedal Position Sensor
G00113348Courtesy of GENERAL MOTORS CORP.
Fig 2: Locating Camshaft Position & Knock Sensor No. 1
G00028343Courtesy of GENERAL MOTORS CORP.
Fig 3: Locating Crankshaft Position Sensor & EGR Valve
G00028342Courtesy of GENERAL MOTORS CORP.
Fig 4: Locating Engine Coolant Temperature Sensor, MAP Sensor & Throttle Actuator Control Motor
G00147785Courtesy of GENERAL MOTORS CORP.
Fig 5: Locating EVAP Canister & Vent Valve
G00147784Courtesy of GENERAL MOTORS CORP.
Fig 6: Locating EVAP Canister Purge Solenoid
G00169574Courtesy of GENERAL MOTORS CORP.
Fig 7: Locating Fuel Pump Relay (Secondary)
G00169575Courtesy of GENERAL MOTORS CORP.
Fig 8: Locating Intake Air Temperature/Mass Airflow Sensor
G00113343Courtesy of GENERAL MOTORS CORP.
Fig 9: Locating Knock Sensor No. 2
G00169576Courtesy of GENERAL MOTORS CORP.
Fig 10: Locating Throttle Actuator Control Module
G00113344Courtesy of GENERAL MOTORS CORP.
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