Repair manual
Buick Electra Estate Wagon Repair Manual
Step-by-step repair and maintenance instructions for the Buick Electra Estate Wagon (1985–1986): removal, installation, adjustment, diagnostics and parameter checks with illustrations.
67sections
319articles
ENManual language
- MODEL IDENTIFICATION
- DESCRIPTION
- ECM OPERATING CONDITIONS SENSED
- ECM OPERATING SYSTEMS CONTROLLED
- DIAGNOSTIC SYSTEM OPERATION
- BASIC DIAGNOSTIC PROCEDURE
- CLEARING TROUBLE CODES
- READING TROUBLE CODES
- TROUBLE CODE COMPONENT IDENTIFICATION
- TROUBLE CODE DETERMINATION (HARD OR INTERMITTENT)
- DIAGNOSTIC MATERIALS
- DIAGNOSTIC CHARTS
- DIAGNOSTIC CIRCUIT CHECK
- DIAGNOSTIC SYMPTOM CHECK
- SYSTEM PERFORMANCE CHECK (CARBURETED MODELS ONLY)
- FIELD SERVICE MODE CHECK (EFI MODELS ONLY)
- DIAGNOSTIC TOOLS
- FUEL SYSTEM PRESSURE TEST
- USING THE DIAGNOSTIC CIRCUIT CHECK
- CHART A1 - NO "CHECK ENGINE SOON" LIGHT
- CHART A2 - NO CODE 12 "CHECK ENGINE SOON" LIGHT ON
- CHART A3 - ENGINE CRANKS BUT WILL NOT RUN (3.0L)
- Circuit Description (3.0L VIN N)
- DIAGNOSTIC AIDS.
- Circuit Description For Steps 1-6 (Chart 1 Of 3 - 3.0L VIN L)
- Ckt Description For Steps 7-11 (Chart 2 Of 3 - 3.0L VIN L)
- Ckt Description For Steps 12 & 13 (Chart 3 Of 3 - 3.0L VIN L)
- Eng. Cranks But Won't Run (3.8L VIN 3 & VIN B W/Type I Ign. System)
- Ignition System Identification
- Circuit Description For Steps 1-6 (Chart 1 OF 3 - Type I)
- Circuit Description For Steps 7-11 (Chart 2 Of 3 - Type I)
- Circuit Description For Steps 12-14 (Chart 3 Of 3 - Type I)
- Eng. Cranks But Won't Run (3.8L VIN 3 & VIN B W/Type II Ign. System)
- Circuit Description For Steps 1-6 (Chart 1 Of 3 - Type II)
- Circuit Description For Steps 7-11 (Chart 2 Of 3 - Type II)
- Circuit Description For Steps 12-14 (Chart 3 Of 3 - Type II)
- Test Conditions
- CHART A4 - ENGINE CRANKS BUT WILL NOT RUN (3.8L)
- CHART A5 - ENGINE CRANKS BUT WILL NOT RUN (3.0L & 3.8L)
- CHART A6 - ENGINE CRANKS BUT WILL NOT RUN (3.0L & 3.8L)
- CHART A7 - FUEL SYSTEM DIAGNOSIS
- CHART A8 - FUEL INJECTION
- CODE 13 - OPEN OXYGEN SENSOR CIRCUIT
- CODE 14 - COOLANT SENSOR SIGNAL VOLTAGE LOW
- CODE 15 - COOLANT SENSOR SIGNAL VOLTAGE HIGH
- CODE 21 - TPS SIGNAL VOLTAGE HIGH
- CODE 22 - TPS SIGNAL VOLTAGE LOW
- CODE 23 - MAT SENSOR SIGNAL VOLTAGE HIGH (3.0L)
- CODE 24 - VEHICLE SPEED SENSOR ("C" & "N" SERIES)
- CODE 24 - VEHICLE SPEED SENSOR (VSS) "A" BODIES W/ STANDARD CLUSTER
- CODE 24, VEHICLE SPEED SENSOR (VSS) "A" BODIES W/ DIGITAL INSTRUMENT CLUSTER
- CODE 24 - VEHICLE SPEED SENSOR ("E" & "G" SERIES)
- CODE 31 - WASTEGATE SOLENOID (3.8L TURBO)
- CODE 32 - EGR VACUUM CONTROL (3.0L & 3.8L)
- CODE 32, EXHAUST GAS RECIRCULATION (EGR) VACUUM CONTROL (3.8L TURBO)
- CODE 33 - MASS AIR FLOW (MAF) SENSOR
- CODE 34 - MASS AIR FLOW (MAF) SENSOR
- CODE 41 - C(3)I IGNITION CAM SENSOR SIGNAL (3.8L TURBO)
- CODE 42 - C(3)I IGNITION (3.0L)
- CODE 42 - ELECTRONIC SPARK TIMING (EST) (3.8L)
- CODE 43 - ELECTRONIC SPARK CONTROL
- CODE 44 - LEAN EXHAUST INDICATION
- CODE 45 - RICH EXHAUST INDICATION
- CODE 51 - PROM FAILURE
- CODE 55 - REPLACE ECM
- CHART C1 - ECM REPLACEMENT CHECK CHART
- CHART C3 - CANISTER PURGE VALVE
- CHART C-4A - IGNITION SYSTEM CHECK (3.0L)
- Test Description For Steps 1-5 (3.0L VIN L)
- Test Description For Steps 1-5 (3.8L VINS 3 & B)
- Test Description For Steps 1-4 (3.0L VIN L & 3.8L VINS 3 & B)
- CHART C5 - ELECTRONIC SPARK CONTROL (ESC) SYSTEM CHECK
- *
- MODEL IDENTIFICATION
- DESCRIPTION
- ECM Systems Controlled (Outputs)
- ECM Operating Conditions Sensed (Inputs)
- DIAGNOSTIC SYSTEM OPERATION
- BASIC DIAGNOSTIC PROCEDURE
- CLEARING TROUBLE CODES
- READING TROUBLE CODES
- TROUBLE CODE COMPONENT IDENTIFICATION
- TROUBLE CODE DETERMINATION (HARD OR INTERMITTENT)
- DIAGNOSTIC MATERIALS
- DIAGNOSTIC CHARTS
- DIAGNOSTIC CIRCUIT CHECK
- DIAGNOSTIC SYMPTOM CHECK
- SYSTEM PERFORMANCE CHECK (CARBURETED MODELS ONLY)
- FIELD SERVICE MODE CHECK (EFI MODELS ONLY)
- DIAGNOSTIC TOOLS
- SYSTEM PERFORMANCE CHECK
- CHART A1 - DWELL FIXED UNDER 10°
- CHART A2 - DWELL FIXED BETWEEN 10°-50°
- CHART A3 - DWELL FIXED OVER 50°
- CHART A5 - "CHECK ENGINE" LIGHT INOPERATIVE
- CHART A6 - WON'T FLASH CODE 12
- CODE 12 - NO DISTRIBUTOR REFERENCE PULSES
- CODE 13 - OPEN OXYGEN SENSOR CIRCUIT
- CODE 14 - COOLANT SENSOR SHORTED
- CODE 15 - COOLANT SENSOR OPEN
- CODE 21 - TPS CIRCUIT HIGH
- CODE 22 - TPS CIRCUIT LOW (5.0L VIN Y ONLY)
- CODE 23 - M/C SOLENOID CIRCUIT LOW
- CODE 24 - VEHICLE SPEED SENSOR (VSS)
- VEHICLE SPEED SENSOR (VSS) (MODELS W/ DIGITAL CLUSTER)
- VEHICLE SPEED SENSOR (VSS) (MODELS W/ INTEGRAL BUFFER)
- FLOW CHART 24B - PARK/NEUTRAL CIRCUIT (P/N)
- CODE 32 - BARO SENSOR
- CODE 34 - DIFFERENTIAL PRESSURE (VACUUM) SENSOR
- CODE 34 - MAP SENSOR CIRCUIT (3.0L & 3.8L ONLY)
- CODE 35 - IDLE SPEED CONTROL CIRCUIT (3.0L & 3.8L ONLY)
- CODE 41 - NO DISTRIBUTOR REFERENCE SIGNAL
- CODE 42 - ELECTRONIC SPARK TIMING (EST)
- CODE 43 - ELECTRONIC SPARK CONTROL (ESC)
- CODE 44 - LEAN EXHAUST INDICATION
- CODE 45 - RICH EXHAUST INDICATION
- CODE 51 - FAULTY PROM
- CODE 53 - EXHAUST GAS RECIRCULATION (EGR) VACUUM CONTROL
- CODE 54 - M/C SOLENOID CIRCUIT HIGH
- CHART C1 - ECM REPLACEMENT CHECK CHART