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2002
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C3500 HD 8.1 G, Automatic
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Repair and Diagnosis
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Engine Performance
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Engine Controls - 8.1L
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Component Locator
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Engine Controls Component Views
Engine Controls Component Views
Fig 1: Throttle Actuator Control (TAC) Module
Courtesy of GENERAL MOTORS CORP.
Fig 2: Fuse Block - Underhood, PCM, EBCM & Aux Battery
Courtesy of GENERAL MOTORS CORP.
Fig 3: A/C Compressor Connectors, C105 & C148
Courtesy of GENERAL MOTORS CORP.
Fig 4: Throttle Body & EVAP Control
Courtesy of GENERAL MOTORS CORP.
Fig 5: Camshaft Position (CMP) Sensor & Knock Sensor (KS) - Left Side
Courtesy of GENERAL MOTORS CORP.
Fig 6: MAP Sensor, ECT Sensor & Ignition Coils - Right Side
Courtesy of GENERAL MOTORS CORP.
Fig 7: Starter & Knock Sensor - Bank 2
Courtesy of GENERAL MOTORS CORP.
Fig 8: MAF & IAT Sensor
Courtesy of GENERAL MOTORS CORP.
Fig 9: P101, A/C Low Pressure Switch & G108
Courtesy of GENERAL MOTORS CORP.
Fig 10: EGR Valve, Engine Oil Pressure (EOP) Sensor, G104 & G105
Courtesy of GENERAL MOTORS CORP.
Fig 11: Crankshaft Position (CKP) Sensor & Engine Oil Pressure (EOP) Sensor
Courtesy of GENERAL MOTORS CORP.
Fig 12: Manual Transmission
Courtesy of GENERAL MOTORS CORP.
Fig 13: Automatic Transmission
Courtesy of GENERAL MOTORS CORP.
Fig 14: Heated Oxygen Sensor (HO2S) - Bank 2
Courtesy of GENERAL MOTORS CORP.
Fig 15: Fuel Tank & G404
Courtesy of GENERAL MOTORS CORP.
Fig 16: Fuel Balance Module - Dual Tanks & Fuel Filter
Courtesy of GENERAL MOTORS CORP.
Fig 17: Auxiliary Fuel Tank & Fuel Pump - Secondary - Dual Tank Option
Courtesy of GENERAL MOTORS CORP.
Fig 18: Accelerator Pedal Position (APP) Sensor
Courtesy of GENERAL MOTORS CORP.
Fig 19: Data Link Connector (DLC)
Courtesy of GENERAL MOTORS CORP.
Fig 20: Theft Deterrent Control Module & DRL Diode
Courtesy of GENERAL MOTORS CORP.