Manual sections

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

Repair manual

Engine Controls - Tests W/codes - Carbureted Buick Estate Wagon

Step-by-step instructions on "Engine Controls - Tests W/codes - Carbureted" for Buick Estate Wagon (1990–1990). Pick an article — removal, installation, adjustment and diagnostics with illustrations.

58subsections

58articles

56illustrations

INTRODUCTION

1 article

• INTRODUCTION

DESCRIPTION

1 article

• DESCRIPTION

Hard Failures

1 article

• Hard Failures

Intermittent Failures

1 article

• Intermittent Failures

DIAGNOSTIC PROCEDURE

1 article

• DIAGNOSTIC PROCEDURE

RETRIEVING CODES (NON-SCAN)

1 article

• RETRIEVING CODES (NON-SCAN) 1

READING TROUBLE CODES

1 article

• READING TROUBLE CODES

HARD OR INTERMITTENT TROUBLE CODE DETERMINATION

1 article

• HARD OR INTERMITTENT TROUBLE CODE DETERMINATION

CLEARING TROUBLE CODES

1 article

• CLEARING TROUBLE CODES

ECM LOCATION

1 article

• ECM LOCATION

Diagnostic Aids

1 article

• Diagnostic Aids

System Performance Check (Carbureted)

1 article

• System Performance Check (Carbureted)

Special Tools (Diagnostic)

1 article

• Special Tools (Diagnostic)

SCAN TESTER USAGE

1 article

• SCAN TESTER USAGE

SCAN DATA

1 article

• SCAN DATA

SUMMARY

1 article

• SUMMARY

DIAGNOSTIC CIRCUIT CHECK

1 article

• DIAGNOSTIC CIRCUIT CHECK 2

SYSTEM PERFORMANCE CHECK

1 article

• SYSTEM PERFORMANCE CHECK 1

CHART A-1, DWELL FIXED LESS THAN 10 DEGREES

1 article

• CHART A-1, DWELL FIXED LESS THAN 10 DEGREES 2

CHART A-2, DWELL FIXED BETWEEN 10°-50°

1 article

• CHART A-2, DWELL FIXED BETWEEN 10°-50° 1

CHART A-3, DWELL FIXED GREATER THAN 50 DEGREES

1 article

• CHART A-3, DWELL FIXED GREATER THAN 50 DEGREES 1

CHART A-5, NO "SERVICE ENGINE SOON" LIGHT

1 article

• CHART A-5, NO "SERVICE ENGINE SOON" LIGHT 1

CHART A-6, "SES" LIGHT ON, WON'T FLASH CODE 12

1 article

• CHART A-6, "SES" LIGHT ON, WON'T FLASH CODE 12 1

CHART B-1, RESTRICTED EXHAUST SYSTEM CHECK

1 article

• CHART B-1, RESTRICTED EXHAUST SYSTEM CHECK

Check At Air Pipe

1 article

• Check At Air Pipe 1

Check At O2 Sensor

1 article

• Check At O2 Sensor 1

Diagnosis

1 article

• Diagnosis

CODE 12, NO DISTRIBUTOR REFERENCE PULSES

1 article

• CODE 12, NO DISTRIBUTOR REFERENCE PULSES 1

CODE 13, OPEN OXYGEN SENSOR CIRCUIT

1 article

• CODE 13, OPEN OXYGEN SENSOR CIRCUIT 1

CODE 14, COOLANT TEMP SENSOR SIGNAL VOLTAGE LOW

1 article

• CODE 14, COOLANT TEMP SENSOR SIGNAL VOLTAGE LOW 1

CODE 15, COOLANT TEMP SENSOR SIGNAL VOLTAGE HIGH

1 article

• CODE 15, COOLANT TEMP SENSOR SIGNAL VOLTAGE HIGH 1

CODE 21, TPS SIGNAL VOLTAGE HIGH

1 article

• CODE 21, TPS SIGNAL VOLTAGE HIGH 1

CODE 22, TPS SIGNAL VOLTAGE LOW

1 article

• CODE 22, TPS SIGNAL VOLTAGE LOW 1

CODE 23, M/C SOLENOID SIGNAL VOLTAGE LOW

1 article

• CODE 23, M/C SOLENOID SIGNAL VOLTAGE LOW 2

CODE 24, VEHICLE SPEED SENSOR

1 article

• CODE 24, VEHICLE SPEED SENSOR 2

CODE 31, CANISTER PURGE SOLENOID VOLT SIGNAL INCORRECT

1 article

• CODE 31, CANISTER PURGE SOLENOID VOLT SIGNAL INCORRECT 2

CODE 34, PRESSURE SENSOR SIGNAL VOLTAGE INCORRECT

1 article

• CODE 34, PRESSURE SENSOR SIGNAL VOLTAGE INCORRECT 2

CODE 41, NO DISTRIBUTOR REFERENCE SIGNAL

1 article

• CODE 41, NO DISTRIBUTOR REFERENCE SIGNAL 1

CODE 42, ELECTRONIC SPARK TIMING

1 article

• CODE 42, ELECTRONIC SPARK TIMING 1

CODE 43, ELECTRONIC SPARK CONTROL SIGNAL VOLTAGE LOW

1 article

• CODE 43, ELECTRONIC SPARK CONTROL SIGNAL VOLTAGE LOW 1

CODE 44, LEAN EXHAUST INDICATION

1 article

• CODE 44, LEAN EXHAUST INDICATION 1

CODE 45, RICH EXHAUST INDICATION

1 article

• CODE 45, RICH EXHAUST INDICATION 1

CODE 51, PROM

1 article

• CODE 51, PROM

CODE 53, EGR SYSTEM MALFUNCTION (CALIF ONLY)

1 article

• CODE 53, EGR SYSTEM MALFUNCTION (CALIF ONLY) 2

CODE 54, M/C SOLENOID SIGNAL VOLTAGE HIGH

1 article

• CODE 54, M/C SOLENOID SIGNAL VOLTAGE HIGH 1

CHART C-1D, PRESSURE SENSOR

1 article

• CHART C-1D, PRESSURE SENSOR 2

CHART C-2C, IDLE LOAD COMPENSATOR

1 article

• CHART C-2C, IDLE LOAD COMPENSATOR 3

CHART C-2D, REAR VACUUM BREAK

1 article

• CHART C-2D, REAR VACUUM BREAK 2

CHART C-2F, TPS ENRICHMENT CHECK

1 article

• CHART C-2F, TPS ENRICHMENT CHECK 2

CHART C-3, CANISTER PURGE SOLENOID

1 article

• CHART C-3, CANISTER PURGE SOLENOID 1

CHART C-4A, IGNITION SYSTEM CHECK

1 article

• CHART C-4A, IGNITION SYSTEM CHECK 2

CHART C-4K, ELECTRONIC SPARK TIMING PERFORMANCE CHECK

1 article

• CHART C-4K, ELECTRONIC SPARK TIMING PERFORMANCE CHECK 1

CHART C-5, ELECTRONIC SPARK CONTROL

1 article

• CHART C-5, ELECTRONIC SPARK CONTROL 1

CHART C-6A, AIR MANAGEMENT CHECK

1 article

• CHART C-6A, AIR MANAGEMENT CHECK 2

CHART C-7C, EGR CHECK

1 article

• CHART C-7C, EGR CHECK 2

CHART C-8, TORQUE CONVERTER CLUTCH ELECT DIAGNOSIS

1 article

• CHART C-8, TORQUE CONVERTER CLUTCH ELECT DIAGNOSIS 2

CHART C-9C, VACUUM ACTUATED EFE SYSTEM CHECK (NON-CEC)

1 article

• CHART C-9C, VACUUM ACTUATED EFE SYSTEM CHECK (NON-CEC) 1

CHART C-10C, A/C CUT-OUT RELAY

1 article

• CHART C-10C, A/C CUT-OUT RELAY 1