Sovereign L6-4.0L (1991): Powertrain Management
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 Management31 pages
Relays and Modules - Computers and Control Systems17 pages
Engine Control Module › Component Information13 pages
Technical Service Bulletins4 pages
All Technical Service Bulletins for Engine Control Module:2 pages
- Customer Interest: › 1821 › Apr › 91 › ECU - Unnecessary Replacement
- All Other Service Bulletins for Engine Control Module: › 1822 › Apr › 91 › ECU - Unnecessary Replacement Due to DTC 29
- Diagrams › Diagram Information and Instructions2345
- Description and Operation › General Description234
Main Relay (Computer/Fuel System) › Component Information4 pages
- Relays and Modules - Emission Control Systems › Air Injection Pump Relay › Component Information › Locations2
Relays and Modules - Fuel Delivery and Air Induction8 pages
Fuel Pump Relay › Component Information4 pages
Main Relay (Computer/Fuel System) › Component Information4 pages
Relays and Modules - Ignition System4 pages
Sensors and Switches - Powertrain Management91 pages
Sensors and Switches - Computers and Control Systems54 pages
Mass Air Flow Sensor <--> [Air Flow Meter/Sensor] › Component Information12 pages
Coolant Temperature Sensor/Switch (For Computer) › Component Information6 pages
Crankshaft Position Sensor › Component Information8 pages
Intake Air Temperature Sensor <--> [Intake Air Temperature Sensor] › Component Information6 pages
Throttle Position Sensor › Component Information5 pages
- Transmission Position Switch/Sensor, A/T › Component Information › Adjustments
Vehicle Speed Sensor › Component Information5 pages
- Sensors and Switches - Emission Control Systems › EGR Temperature Sensor › Component Information › Specifications23
Sensors and Switches - Fuel Delivery and Air Induction24 pages
Mass Air Flow Sensor <--> [Air Flow Meter/Sensor] › Component Information12 pages
- Fuel Flow Sensor › Component Information › Locations
Inertia Fuel Shutoff Switch › Component Information6 pages
Throttle Position Sensor › Component Information5 pages
Sensors and Switches - Ignition System10 pages
Crankshaft Position Sensor › Component Information8 pages
- Ignition Switch › Ignition Switch Lock Cylinder › Component Information › Service and Repair2
Tune-up and Engine Performance Checks36 pages
- Fuel Pressure › System Information › Technical Service Bulletins › Tool - Fuel Pressure Tester Adapter23
- Air/Fuel Mixture › System Information › Specifications234
Idle Speed › System Information › Technical Service Bulletins2 pages
Air Cleaner Housing › Air Filter Element › Component Information3 pages
- Fuel Filter › Fuel Pressure Release › System Information › Service Precautions2
- Firing Order › Component Information › Specifications
Ignition Cable › Component Information6 pages
Spark Plug › Component Information3 pages
- Compression Check › System Information › Specifications2
- Valve Clearance › System Information › Adjustments2345
Computers and Control Systems159 pages
Mass Air Flow Sensor <--> [Air Flow Meter/Sensor] › Component Information12 pages
Intake Air Temperature Sensor <--> [Intake Air Temperature Sensor] › Component Information6 pages
Coolant Temperature Sensor/Switch (For Computer) › Component Information6 pages
- Cranking Signal › Component Information › Description and Operation
Crankshaft Position Sensor › Component Information8 pages
- Crankshaft Position Timing Ring › Component Information › Service and Repair
- Data Link Connector › Component Information › Locations2
- Diagnostic Mode Switch/Connector › Component Information › Locations
- Diagnostic Readout Box › Component Information › Description and Operation
Engine Control Module › Component Information13 pages
Technical Service Bulletins4 pages
All Technical Service Bulletins for Engine Control Module:2 pages
- Customer Interest: › 1821 › Apr › 91 › ECU - Unnecessary Replacement
- All Other Service Bulletins for Engine Control Module: › 1822 › Apr › 91 › ECU - Unnecessary Replacement Due to DTC 29
- Diagrams › Diagram Information and Instructions2345
- Description and Operation › General Description234
Idle Speed Control Valve <--> [Idle Speed/Throttle Actuator - Electronic] › Component Information5 pages
- Idle Up Control Valve › Component Information › Testing and Inspection
Main Relay (Computer/Fuel System) › Component Information4 pages
Malfunction Indicator Lamp › Component Information4 pages
Relays and Modules - Computers and Control Systems17 pages
Engine Control Module › Component Information13 pages
Technical Service Bulletins4 pages
All Technical Service Bulletins for Engine Control Module:2 pages
- Customer Interest: › 1821 › Apr › 91 › ECU - Unnecessary Replacement
- All Other Service Bulletins for Engine Control Module: › 1822 › Apr › 91 › ECU - Unnecessary Replacement Due to DTC 29
- Diagrams › Diagram Information and Instructions2345
- Description and Operation › General Description234
Main Relay (Computer/Fuel System) › Component Information4 pages
Sensors and Switches - Computers and Control Systems54 pages
Mass Air Flow Sensor <--> [Air Flow Meter/Sensor] › Component Information12 pages
Coolant Temperature Sensor/Switch (For Computer) › Component Information6 pages
Crankshaft Position Sensor › Component Information8 pages
Intake Air Temperature Sensor <--> [Intake Air Temperature Sensor] › Component Information6 pages
Throttle Position Sensor › Component Information5 pages
- Transmission Position Switch/Sensor, A/T › Component Information › Adjustments
Vehicle Speed Sensor › Component Information5 pages
Throttle Position Sensor › Component Information5 pages
- Transmission Position Switch/Sensor, A/T › Component Information › Adjustments
Vehicle Speed Sensor › Component Information5 pages
- Voltage Signal › Component Information › Description and Operation
Emission Control Systems65 pages
Air Injection16 pages
- Air Injection Vacuum Control Solenoid Valve › Component Information › Specifications23
- Air Diverter Solenoid › Component Information › Locations
- Air Injection Check Valve › Component Information › Locations23
- Air Switching Valve <--> [Air Injection Control Valve] › Component Information › Locations2
- Air Injection Pump › Component Information › Locations234
- Air Injection Pump Clutch › Component Information › Service and Repair
- Air Injection Pump Relay › Component Information › Locations2
Catalytic Converter › Component Information5 pages
Evaporative Emissions System14 pages
- Bowl Vent Solenoid › Component Information › Service and Repair
- Bowl Vent Valve › Component Information › Locations
Canister Purge Control Valve › Component Information5 pages
- Charcoal Canister <--> [Evaporative Emission Control Canister] › Component Information › Locations234
- Liquid Vapor Separator, Evaporative System › Component Information › Locations
- Vacuum Delay Valve, EVAP › Component Information › Locations2
Exhaust Gas Recirculation16 pages
Positive Crankcase Ventilation9 pages
- Relays and Modules - Emission Control Systems › Air Injection Pump Relay › Component Information › Locations2
- Sensors and Switches - Emission Control Systems › EGR Temperature Sensor › Component Information › Specifications23
Fuel Delivery and Air Induction135 pages
- Fuel Pressure › System Information › Technical Service Bulletins › Tool - Fuel Pressure Tester Adapter23
- Fuel Pressure Release › System Information › Service Precautions2
Idle Speed › System Information › Technical Service Bulletins2 pages
- Air/Fuel Mixture › System Information › Specifications234
- Accelerator Pedal › Component Information › Description and Operation23
Air Cleaner Housing › Air Filter Element › Component Information3 pages
Mass Air Flow Sensor <--> [Air Flow Meter/Sensor] › Component Information12 pages
- Carburetor › Bowl Vent Solenoid › Component Information › Service and Repair
- Fuel › Component Information › Specifications
- Fuel Filler Cap › Component Information › Technical Service Bulletins › Fuel Filler Cap - Breakage
- Fuel Filter › Fuel Pressure Release › System Information › Service Precautions2
- Fuel Flow Sensor › Component Information › Locations
- Fuel Injector › Fuel Injector Relay › Component Information › Locations
- Fuel Pressure Regulator › Component Information › Specifications2345
Fuel Pressure Pulsation Damper › Component Information › Technical Service Bulletins2 pages
Fuel Pump7 pages
- Fuel Pressure › System Information › Technical Service Bulletins › Tool - Fuel Pressure Tester Adapter23
Fuel Pump Relay › Component Information4 pages
- Fuel Rail › Component Information › Locations234
Fuel Return Line › Component Information3 pages
Fuel Supply Line › Component Information4 pages
Fuel Tank8 pages
Fuel Gauge Sender › Component Information4 pages
Fuel Tank Drain Plug › Component Information › Technical Service Bulletins2 pages
- Fuel Tank Pressure Release Valve › Component Information › Description and Operation2
- Idle Speed Control (Linkage) › Component Information › Technical Service Bulletins › Throttle Valve - Adjustment Guideline2
Idle Speed Control Valve <--> [Idle Speed/Throttle Actuator - Electronic] › Component Information5 pages
- Idle Up Control Valve › Component Information › Testing and Inspection
Inertia Fuel Shutoff Switch › Component Information6 pages
Main Relay (Computer/Fuel System) › Component Information4 pages
Relays and Modules - Fuel Delivery and Air Induction8 pages
Fuel Pump Relay › Component Information4 pages
Main Relay (Computer/Fuel System) › Component Information4 pages
Sensors and Switches - Fuel Delivery and Air Induction24 pages
Mass Air Flow Sensor <--> [Air Flow Meter/Sensor] › Component Information12 pages
- Fuel Flow Sensor › Component Information › Locations
Inertia Fuel Shutoff Switch › Component Information6 pages
Throttle Position Sensor › Component Information5 pages
- Throttle Body › Throttle Plate - PFI › Component Information › Locations2345
Throttle Cable/Linkage › Component Information6 pages
Throttle Position Sensor › Component Information5 pages
Ignition System51 pages
- Firing Order › Component Information › Specifications
Crankshaft Position Sensor › Component Information8 pages
Ignition Cable › Component Information6 pages
- Ignition Coil › Component Information › Specifications23456
- Ignition Control Module › Component Information › Locations2
- Ignition Relay › Component Information › Locations2
- Ignition Amplifier <--> [Ignition Power Stage] › Component Information › Locations234
Relays and Modules - Ignition System4 pages
Sensors and Switches - Ignition System10 pages
Crankshaft Position Sensor › Component Information8 pages
- Ignition Switch › Ignition Switch Lock Cylinder › Component Information › Service and Repair2
Spark Plug › Component Information3 pages
Transmission Control Systems16 pages
Relays and Modules - Transmission and Drivetrain12 pages
Relays and Modules - A/T11 pages
Control Module, A/T › Component Information10 pages
Technical Service Bulletins8 pages
All Technical Service Bulletins for Control Module:4 pages
Customer Interest for Control Module:4 pages
- Locations › Transmission Control Module2
- Transmission Control System Relay, A/T › Component Information › Locations
- Relays and Modules - M/T › Control Module, M/T › Component Information › Locations
Sensors and Switches - Transmission and Drivetrain › Sensors and Switches - A/T4 pages