Manual sections

Wiring diagrams

• A/c Compressor
• Abbreviations
• Accessory Drive Belts
• Adjustments
• Airbag
• Anti-Lock/traction Control
• Application
• Automatic Trans
• Auxiliary Emission Control Systems
• Basic Trouble Shooting
• Brakes
• Charging System
• Check Lists
• Computer Relearn
• Cooling System (Mechanical)
• Cruise Control Systems
• Diagnosis - 4l60-e
• Diagnostic Connector Locations
• Differentials & Drive Axles
• Door Locks & Anti-Theft Systems
• Driveline/axles
• Driveshaft & Universal Joints
• DTC Index
• Electrical Component Locations
• Emission Applications
• Engine
• Engine Controls - System/component Tests - 4.3l.
• Engine Controls - Tests W/codes - 4.3l
• Engine Performance
• Fuses & Circuit Breakers
• Gauges & Instrument Panels
• General Servicing - All Makes
• Heated Glass/defoggers
• Heater
• Identification
• Manual & Power Steering
• Manual HVAC System
• MAP Guidelines
• Mechanical
• Mechanical - Hydraulic
• Metric Conversions
• Mirrors
• Passive Restraints
• Pin Voltage Charts
• Procedures
• Removal & Installation
• Reset Procedures
• Restraints
• Rpo Codes
• Seats
• Sensor Range Charts
• Specifications
• Starter
• Steering
• Steering Column
• Steering Column Switches
• Suspension Front
• Suspension Rear
• Testing & Diagnostics
• Theory & Operation
• Traction Control Disable
• Transfer Case
• Transmission
• Wheel Alignment
• Windows
• Wiper/washer Systems
• Wiring Diagrams - Engine Performance

Repair manual

Engine Controls - System/component Tests - 4.3l. Chevrolet Astro I

Step-by-step instructions on "Engine Controls - System/component Tests - 4.3l." for Chevrolet Astro I (1985–2005). Pick an article — removal, installation, adjustment and diagnostics with illustrations.

59subsections

59articles

61illustrations

MODEL IDENTIFICATION

1 article

• MODEL IDENTIFICATION

TERMINOLOGY

1 article

• TERMINOLOGY

INTRODUCTION

1 article

• INTRODUCTION

CONTROL UNIT

1 article

• CONTROL UNIT

Ground Circuits

1 article

• Ground Circuits

Power Circuits

1 article

• Power Circuits

A/C ON SWITCH/SYSTEM TEST

1 article

• A/C ON SWITCH/SYSTEM TEST

BRAKE SWITCH

1 article

• BRAKE SWITCH

ENGINE COOLANT TEMPERATURE (ECT) SENSOR

1 article

• ENGINE COOLANT TEMPERATURE (ECT) SENSOR

INTAKE AIR TEMPERATURE (IAT) SENSOR

1 article

• INTAKE AIR TEMPERATURE (IAT) SENSOR

KNOCK SENSOR

1 article

• KNOCK SENSOR

MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR

1 article

• MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR

OXYGEN SENSOR (O2S)

1 article

• OXYGEN SENSOR (O2S)

OXYGEN SENSOR HEATING ELEMENT

1 article

• OXYGEN SENSOR HEATING ELEMENT

THROTTLE POSITION (TP) SENSOR

1 article

• THROTTLE POSITION (TP) SENSOR 1

TRANSMISSION RANGE SWITCH

1 article

• TRANSMISSION RANGE SWITCH

VEHICLE SPEED SENSOR (PM GENERATOR)

1 article

• VEHICLE SPEED SENSOR (PM GENERATOR)

A/C Relays

1 article

• A/C Relays

Fuel Pump Relay

1 article

• Fuel Pump Relay 6

SOLENOIDS

1 article

• SOLENOIDS

Electronic Air Control (EAC) Solenoid

1 article

• Electronic Air Control (EAC) Solenoid

EGR Control Solenoid

1 article

• EGR Control Solenoid

Idle Air Control (IAC) Valve

1 article

• Idle Air Control (IAC) Valve

Torque Converter Clutch (TCC) Solenoid

1 article

• Torque Converter Clutch (TCC) Solenoid

FUEL DELIVERY

1 article

• FUEL DELIVERY

Fuel Pressure Regulator (Port Fuel Injection)

1 article

• Fuel Pressure Regulator (Port Fuel Injection)

Fuel Pressure Regulator (Central & Throttle Body Injection)

1 article

• Fuel Pressure Regulator (Central & Throttle Body Injection)

Fuel Pump Oil Pressure Switch (Back-Up Circuit)

1 article

• Fuel Pump Oil Pressure Switch (Back-Up Circuit)

Fuel Pump Relay By-Pass Procedure

1 article

• Fuel Pump Relay By-Pass Procedure

Fuel Injector(s)

1 article

• Fuel Injector(s)

C-2, Port Fuel Injector Balance Test

1 article

• C-2, Port Fuel Injector Balance Test 1

IGNITION SYSTEM

1 article

• IGNITION SYSTEM

C-4, Ignition Control Circuit

1 article

• C-4, Ignition Control Circuit

C-5, Knock Sensor Circuit (Models Using External Spark Controller Module)

1 article

• C-5, Knock Sensor Circuit (Models Using External Spark Controller Module)

C-5, Knock Sensor Circuit (Models Using Knock Sensor With Internal Spark Controller Module)

1 article

• C-5, Knock Sensor Circuit (Models Using Knock Sensor With Internal Spark Controller Module)

System Test (Vacuum-Controlled Valve)

1 article

• System Test (Vacuum-Controlled Valve)

Negative Backpressure EGR Valve

1 article

• Negative Backpressure EGR Valve

Linear EGR Valve (Digital Valve)

1 article

• Linear EGR Valve (Digital Valve)

Vapor Canister Purge Valve ("P" Series & 4.3L CPI)

1 article

• Vapor Canister Purge Valve ("P" Series & 4.3L CPI)

Fuel Tank Pressure Control Valve ("C", "G", "K" & "M" Series -High-Altitude)

1 article

• Fuel Tank Pressure Control Valve ("C", "G", "K" & "M" Series -High-Altitude)

Thermostatic Vacuum Switch

1 article

• Thermostatic Vacuum Switch

Required Service

1 article

• Required Service

Checking PCV Valve Function

1 article

• Checking PCV Valve Function

Damper Door - Wax Pellet Check

1 article

• Damper Door - Wax Pellet Check

MISCELLANEOUS ECM/PCM/VCM CONTROLS

1 article

• MISCELLANEOUS ECM/PCM/VCM CONTROLS 3

Converter Lock-Up Signal At Transmission

1 article

• Converter Lock-Up Signal At Transmission

Converter Lock-Up Signal From ECM/PCM/VCM

1 article

• Converter Lock-Up Signal From ECM/PCM/VCM

Shift Light (Manual Transmission)

1 article

• Shift Light (Manual Transmission) 1

A/C CLUTCH (C-10) & ELECTRIC COOLING FAN (C-12)

1 article

• A/C CLUTCH (C-10) & ELECTRIC COOLING FAN (C-12)

A/C Clutch Relay

1 article

• A/C Clutch Relay

COOLING FAN (C-12)

1 article

• COOLING FAN (C-12)

Cooling Fan Relay

1 article

• Cooling Fan Relay

Cooling Fan Motor

1 article

• Cooling Fan Motor

DIAGNOSTIC CHARTS

1 article

• DIAGNOSTIC CHARTS

CHART C-10, A/C COMPRESSOR CLUTCH CIRCUIT DIAGNOSIS - 4.3L (VIN W & Z) S" & "T" SERIES A/T & 4.3L (VIN W) "T" SERIES M/T

1 article

• CHART C-10, A/C COMPRESSOR CLUTCH CIRCUIT DIAGNOSIS - 4.3L (VIN W & Z) S" & "T" SERIES A/T & 4.3L (VIN W) "T" SERIES M/T

Diagnostic Aids

1 article

• Diagnostic Aids 2

CHART C-10, A/C COMPRESSOR CLUTCH CIRCUIT DIAGNOSIS 4.3L (VIN Z) "S" & "T" SERIES M/T (1 OF 2)

1 article

• CHART C-10, A/C COMPRESSOR CLUTCH CIRCUIT DIAGNOSIS 4.3L (VIN Z) "S" & "T" SERIES M/T (1 OF 2) 2

CHART C-10, A/C COMPRESSOR CLUTCH CIRCUIT DIAGNOSIS 4.3L (VIN Z) "S" & "T" SERIES M/T (2 OF 2)

1 article

• CHART C-10, A/C COMPRESSOR CLUTCH CIRCUIT DIAGNOSIS 4.3L (VIN Z) "S" & "T" SERIES M/T (2 OF 2) 1

A/C REQUEST SIGNAL CIRCUIT DIAGNOSIS - 4.3L VIN W & Z ("C", "G", "K", "L", "M" & "P" SERIES)

1 article

• A/C REQUEST SIGNAL CIRCUIT DIAGNOSIS - 4.3L VIN W & Z ("C", "G", "K", "L", "M" & "P" SERIES) 44