Town Car V8-281 4.6L SOHC (1991): Powertrain Management
Also for this vehicle: Town Car V8-302 5.0L (1987), Town Car V8-4.6L (2008), Town Car V8-4.6L SOHC VIN W (1999), Town Car V8-4.6L VIN V Flex Fuel (2006), Town Car V8-4.6L VIN W (1997), Town Car Factory Service Manual (2007).
Diagnostics
Maintenance
Engine
Transmission
Brakes
Electrical
Steering & suspension
Heating & A/C
Body & interior
Choose Sections to see everything in a chapter, or a chapter title to start at its first page.
Relays and Modules - Powertrain Management41 pages
Relays and Modules - Computers and Control Systems24 pages
Engine Control Module › Component Information22 pages
Technical Service Bulletins10 pages
- Customer Interest: › 9356 › Mar › 93 › Engine - Spark Knock When Under Heavy Load2
- All Technical Service Bulletins: › 9356 › Mar › 93 › Engine - Spark Knock When Under Heavy Load2
- All Other Service Bulletins for Engine Control Module: › 9339 › Feb › 93 › Ignition Switch Lock/Steering Lock - Difficult Operation23456
- All Other Service Bulletins for Engine Control Module: › 9339 › Feb › 93 › Ignition Switch Lock/Steering Lock - Difficult Operation
- Diagrams › Diagram Information and Instructions234567
- Description and Operation › Electronic Control Assembly (ECA)23
- Service and Repair › Reset Procedure2
- Integrated Control Relay Module › Component Information › Diagrams
- Main Relay (Computer/Fuel System) › Component Information › Locations
Relays and Modules - Fuel Delivery and Air Induction9 pages
Relays and Modules - Ignition System › Ignition Control Module › Component Information › Technical Service Bulletins8 pages
- Customer Interest: › 9427 › Jan › 94 › Engine - Miss/Stumble/Rough Idle2
All Technical Service Bulletins for Ignition Control Module:4 pages
- All Other Service Bulletins for Ignition Control Module: › 95102 › May › 95 › Connector, DIS Ignition Revised2
Sensors and Switches - Powertrain Management103 pages
Sensors and Switches - Computers and Control Systems55 pages
Mass Air Flow (MAF) Sensor <--> [Air Flow Meter/Sensor] › Component Information › Technical Service Bulletins6 pages
- Barometric Pressure Sensor › Component Information › Description and Operation
- Coolant Temperature Sensor/Switch (For Computer) › Component Information › Locations23
Crankshaft Position Sensor › Component Information8 pages
- Cylinder Identification Sensor › Component Information › Locations2
- Intake Air Temperature Sensor › Component Information › Locations2
- Manifold Pressure/Vacuum Sensor › Component Information › Description and Operation
- Oxygen Sensor › Component Information › Technical Service Bulletins › EGO Sensors - Silicone Contamination23456
- Power Steering Pressure Switch › Component Information › Locations2
- Pressure Feedback Exhaust Sensor, EGR › Component Information › Technical Service Bulletins › EGR DPFE Sensor - Voltage Range Revision2
- Throttle Full Open Switch › Component Information › Locations
- Throttle Position Sensor › Component Information › Specifications2345
- Transmission Position Switch/Sensor, A/T › Component Information › Locations
- Sensors and Switches - Emission Control Systems › Pressure Feedback Exhaust Sensor, EGR › Component Information › Technical Service Bulletins › EGR DPFE Sensor - Voltage Range Revision2
Sensors and Switches - Fuel Delivery and Air Induction19 pages
Mass Air Flow (MAF) Sensor <--> [Air Flow Meter/Sensor] › Component Information › Technical Service Bulletins6 pages
- Throttle Full Open Switch › Component Information › Locations
- Throttle Position Sensor › Component Information › Specifications2345
Sensors and Switches - Ignition System27 pages
Crankshaft Position Sensor › Component Information8 pages
Ignition Switch › Ignition Switch Lock Cylinder › Component Information › Technical Service Bulletins12 pages
Tune-up and Engine Performance Checks22 pages
- Fuel Pressure › System Information › Specifications
- Idle Speed › System Information › Specifications23
- Air Cleaner Housing › Component Information › Service and Repair
- Fuel Filter › Fuel Pressure Release › System Information › Service Precautions2
- Firing Order › Component Information › Specifications2
- Ignition Cable › Component Information › Locations2345
- Spark Plug › Component Information › Specifications › Spark Plug Gap2
- Valve Clearance › System Information › Locations
Computers and Control Systems159 pages
Mass Air Flow (MAF) Sensor <--> [Air Flow Meter/Sensor] › Component Information › Technical Service Bulletins6 pages
- Intake Air Temperature Sensor › Component Information › Locations2
- Auxiliary Air Valve (Idle Speed) › Component Information › Description and Operation
- Barometric Pressure Sensor › Component Information › Description and Operation
- Coolant Temperature Sensor/Switch (For Computer) › Component Information › Locations23
Crankshaft Position Sensor › Component Information8 pages
- Cylinder Identification Sensor › Component Information › Locations2
- Data Link Connector › Component Information › Locations
- Diagnostic Mode Switch/Connector › Component Information › Diagrams2
Engine Control Module › Component Information16 pages
Idle Speed/Throttle Actuator - Electronic › Component Information5 pages
- Integrated Control Relay Module › Component Information › Diagrams
- Main Relay (Computer/Fuel System) › Component Information › Locations
- Malfunction Indicator Lamp › Malfunction Indicator Lamp Driver Module › Component Information › Locations
- Manifold Pressure/Vacuum Sensor › Component Information › Description and Operation
- Oxygen Sensor › Component Information › Technical Service Bulletins › EGO Sensors - Silicone Contamination23456
- Power Steering Pressure Switch › Component Information › Locations2
- Pressure Feedback Exhaust Sensor, EGR › Component Information › Technical Service Bulletins › EGR DPFE Sensor - Voltage Range Revision2
Relays and Modules - Computers and Control Systems21 pages
Engine Control Module › Component Information19 pages
Technical Service Bulletins7 pages
- Customer Interest: › 9356 › Mar › 93 › Engine - Spark Knock When Under Heavy Load2
- All Technical Service Bulletins: › 9356 › Mar › 93 › Engine - Spark Knock When Under Heavy Load2
- All Other Service Bulletins for Engine Control Module: › 98-23-10 › Nov › 98 › Engine - Lean Driveability Symptoms23
- All Other Service Bulletins for Engine Control Module: › 98-23-10 › Nov › 98 › Engine - Lean Driveability Symptoms
- Diagrams › Diagram Information and Instructions234567
- Description and Operation › Electronic Control Assembly (ECA)23
- Service and Repair › Reset Procedure2
- Integrated Control Relay Module › Component Information › Diagrams
- Main Relay (Computer/Fuel System) › Component Information › Locations
Sensors and Switches - Computers and Control Systems55 pages
Mass Air Flow (MAF) Sensor <--> [Air Flow Meter/Sensor] › Component Information › Technical Service Bulletins6 pages
- Barometric Pressure Sensor › Component Information › Description and Operation
- Coolant Temperature Sensor/Switch (For Computer) › Component Information › Locations23
Crankshaft Position Sensor › Component Information8 pages
- Cylinder Identification Sensor › Component Information › Locations2
- Intake Air Temperature Sensor › Component Information › Locations2
- Manifold Pressure/Vacuum Sensor › Component Information › Description and Operation
- Oxygen Sensor › Component Information › Technical Service Bulletins › EGO Sensors - Silicone Contamination23456
- Power Steering Pressure Switch › Component Information › Locations2
- Pressure Feedback Exhaust Sensor, EGR › Component Information › Technical Service Bulletins › EGR DPFE Sensor - Voltage Range Revision2
- Throttle Full Open Switch › Component Information › Locations
- Throttle Position Sensor › Component Information › Specifications2345
- Transmission Position Switch/Sensor, A/T › Component Information › Locations
- Throttle Full Open Switch › Component Information › Locations
- Throttle Position Sensor › Component Information › Specifications2345
- Transmission Position Switch/Sensor, A/T › Component Information › Locations
Emission Control Systems35 pages
- Catalytic Converter › Component Information › Locations › Dual Exhaust2
- Early Fuel Evaporation (EFE) › Thermal Vacuum Valve, EFE › Component Information › Description and Operation › Vacuum Control Valve2
Evaporative Emissions System7 pages
- Canister Purge Solenoid › Component Information › Locations23
- Charcoal Canister <--> [Evaporative Emission Control Canister] › Component Information › Locations2
- Liquid Vapor Separator, Evaporative System › Component Information › Description and Operation
- Vacuum Delay Valve, EVAP › Component Information › Description and Operation
Exhaust Gas Recirculation11 pages
- EGR Vacuum Regulator Solenoid <--> [EGR Electronic Vacuum Regulator Solenoid] › Component Information › Locations2
- EGR Valve › Component Information › Specifications234
- Pressure Feedback Exhaust Sensor, EGR › Component Information › Technical Service Bulletins › EGR DPFE Sensor - Voltage Range Revision2
- Thermal Vacuum Valve, EGR › Component Information › Description and Operation › Vacuum Control Valve2
- Vacuum Delay Valve, EGR › Component Information › Description and Operation
Positive Crankcase Ventilation9 pages
PCV Valve Hose › Component Information › Technical Service Bulletins8 pages
- Customer Interest: › 91116 › May › 91 › Engine - Rough Idle23
- All Technical Service Bulletins: › 91116 › May › 91 › Engine - Rough Idle23
- All Other Service Bulletins for PCV Valve Hose: › 94117 › Jun › 94 › Oil Filter - Balloons & Eventually Leaks2
- All Other Service Bulletins for PCV Valve Hose: › 94117 › Jun › 94 › Oil Filter - Balloons & Eventually Leaks
- Positive Crankcase Ventilation Valve › Component Information › Locations
- Sensors and Switches - Emission Control Systems › Pressure Feedback Exhaust Sensor, EGR › Component Information › Technical Service Bulletins › EGR DPFE Sensor - Voltage Range Revision2
Fuel Delivery and Air Induction178 pages
- Fuel Pressure › System Information › Specifications
- Fuel Pressure Release › System Information › Service Precautions2
- Idle Speed › System Information › Specifications23
- Air Cleaner Housing › Component Information › Service and Repair
Mass Air Flow (MAF) Sensor <--> [Air Flow Meter/Sensor] › Component Information › Technical Service Bulletins6 pages
- Auxiliary Air Valve (Idle Speed) › Component Information › Description and Operation
Fuel › Component Information › Technical Service Bulletins12 pages
- Fuel Filler Cap › Component Information › Description and Operation
- Fuel Filter › Fuel Pressure Release › System Information › Service Precautions2
Fuel Line Coupler › Component Information › Technical Service Bulletins2 pages
- Fuel Pressure Regulator › Component Information › Specifications2345
Fuel Pump8 pages
- Fuel Injection Supply Manifold Assembly <--> [Fuel Rail] › Component Information › Locations23
Fuel Return Line › Component Information › Technical Service Bulletins16 pages
Recalls for Fuel Return Line:8 pages
All Technical Service Bulletins for Fuel Return Line:8 pages
Fuel Supply Line › Component Information › Technical Service Bulletins16 pages
Recalls for Fuel Supply Line:8 pages
All Technical Service Bulletins for Fuel Supply Line:8 pages
Fuel Tank › Fuel Gauge Sender › Component Information17 pages
Technical Service Bulletins12 pages
Customer Interest for Fuel Gauge Sender:6 pages
All Technical Service Bulletins for Fuel Gauge Sender:6 pages
- Testing and Inspection › Magnetic Type2345
Idle Speed/Throttle Actuator - Electronic › Component Information5 pages
- Integrated Control Relay Module › Component Information › Diagrams
- Main Relay (Computer/Fuel System) › Component Information › Locations
Relays and Modules - Fuel Delivery and Air Induction9 pages
Sensors and Switches - Fuel Delivery and Air Induction19 pages
Mass Air Flow (MAF) Sensor <--> [Air Flow Meter/Sensor] › Component Information › Technical Service Bulletins6 pages
- Throttle Full Open Switch › Component Information › Locations
- Throttle Position Sensor › Component Information › Specifications2345
Throttle Body › Component Information › Technical Service Bulletins8 pages
- Throttle Cable/Linkage › Component Information › Technical Service Bulletins › Engine Torque Insulator/Throttle Cable - Revised2345678
- Throttle Full Open Switch › Component Information › Locations
- Throttle Position Sensor › Component Information › Specifications2345
Ignition System82 pages
- Firing Order › Component Information › Specifications2
Crankshaft Position Sensor › Component Information8 pages
- Ignition Cable › Component Information › Locations2345
Ignition Coil › Component Information7 pages
Ignition Control Module › Component Information › Technical Service Bulletins8 pages
All Technical Service Bulletins for Ignition Control Module:4 pages
- Customer Interest: › 9427 › Jan › 94 › Engine - Miss/Stumble/Rough Idle2
- All Other Service Bulletins for Ignition Control Module: › 95102 › May › 95 › Connector, DIS Ignition Revised2
- Ignition Timing Connector › Component Information › Locations › Component Locations23
Relays and Modules - Ignition System › Ignition Control Module › Component Information › Technical Service Bulletins8 pages
- Customer Interest: › 9427 › Jan › 94 › Engine - Miss/Stumble/Rough Idle2
All Technical Service Bulletins for Ignition Control Module:4 pages
- All Other Service Bulletins for Ignition Control Module: › 95102 › May › 95 › Connector, DIS Ignition Revised2
Sensors and Switches - Ignition System27 pages
Crankshaft Position Sensor › Component Information8 pages
Ignition Switch › Ignition Switch Lock Cylinder › Component Information › Technical Service Bulletins12 pages
- Spark Plug › Component Information › Specifications › Spark Plug Gap2
Transmission Control Systems › Sensors and Switches - Transmission and Drivetrain3 pages