Wagoneer L6-242 4.0L VIN M FI (1988): Powertrain Management
Also for this vehicle: Wagoneer L4-126 2.1L DSL Turbo VIN B FI (1985), Wagoneer L4-150 2.5L VIN E TBI (1990), Wagoneer L4-150 2.5L VIN H TBI (1986), Wagoneer L6-242 4.0L VIN L FI (1989), Wagoneer L6-258 4.2L VIN C 2-bbl (1982), Wagoneer V6-173 2.8L VIN W 2-bbl (1984), Wagoneer V8-360 5.9L VIN N 2-bbl (1983).
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 Management36 pages
Relays and Modules - Computers and Control Systems22 pages
- Body Control Module › Component Information › Diagrams › Diagram Information and Instructions2
Powertrain Control Module <--> [Engine Control Module] › Component Information13 pages
Technical Service Bulletins10 pages
All Technical Service Bulletins for Powertrain Control Module:5 pages
Customer Interest for Powertrain Control Module:5 pages
- Diagrams › Diagram Information and Instructions23
- Automatic Shut Down (ASD) Relay <--> [Main Relay (Computer/Fuel System)] › Component Information › Locations23
Oxygen Sensor Heater Relay <--> [Oxygen Sensor Relay] › Component Information › Technical Service Bulletins4 pages
Relays and Modules - Fuel Delivery and Air Induction9 pages
Relays and Modules - Ignition System › Ignition Control Module › Component Information5 pages
Sensors and Switches - Powertrain Management170 pages
Sensors and Switches - Computers and Control Systems123 pages
- Barometric Pressure Sensor › Component Information › Specifications
- Camshaft Position Sensor › Component Information › Diagrams › Diagram Information and Instructions2
Coolant Temperature Sensor/Switch (For Computer) › Component Information4 pages
Crankshaft Position Sensor › Component Information28 pages
Technical Service Bulletins26 pages
- Diagrams › Diagram Information and Instructions2
- Engine Speed Sensor › Component Information › Locations › Engine Speed Sensor23
Intake Air Temperature Sensor › Component Information3 pages
- Knock Sensor › Component Information › Locations › Component Locations2
- Manifold Pressure/Vacuum Sensor › Component Information › Specifications234
Oxygen Sensor › Component Information59 pages
Technical Service Bulletins57 pages
All Technical Service Bulletins for Oxygen Sensor:19 pages
- Customer Interest: › 085488 › Aug › 88 › O2 Sensor Heater Relay - Fault C1003 Set2
- All Other Service Bulletins for Oxygen Sensor: › 085488 › Aug › 88 › O2 Sensor Heater Relay - Fault C1003 Set2
- Diagrams › Diagram Information and Instructions2
- Throttle Full Close Switch › Component Information › Locations
- Throttle Full Open Switch › Component Information › Locations
Throttle Position Sensor › Component Information12 pages
Distance Sensor <--> [Vehicle Speed Sensor] › Component Information3 pages
Sensors and Switches - Fuel Delivery and Air Induction14 pages
- Throttle Full Close Switch › Component Information › Locations
- Throttle Full Open Switch › Component Information › Locations
Throttle Position Sensor › Component Information12 pages
Sensors and Switches - Ignition System33 pages
- Camshaft Position Sensor › Component Information › Diagrams › Diagram Information and Instructions2
Crankshaft Position Sensor › Component Information28 pages
Technical Service Bulletins26 pages
- Diagrams › Diagram Information and Instructions2
- Ignition Switch › Component Information › Service and Repair
- Knock Sensor › Component Information › Locations › Component Locations2
Tune-up and Engine Performance Checks26 pages
- Fuel Pressure › Fuel Pressure Test Port › Component Information › Locations
- Air/Fuel Mixture › System Information › Adjustments
- Idle Speed › System Information › Specifications2
Air Cleaner Housing › Air Filter Element › Component Information › Technical Service Bulletins4 pages
- Fuel Filter › Fuel Pressure Release › System Information › Service and Repair
- Firing Order › Component Information › Specifications
- Ignition Cable › Component Information › Specifications
Distributor, Ignition › Distributor Cap › Component Information › Technical Service Bulletins8 pages
- Spark Plug › Component Information › Specifications › Gap Specifications2
- Compression Check › System Information › Specifications2
- Valve Clearance › System Information › Adjustments
Computers and Control Systems299 pages
- A/C Signal › Component Information › Description and Operation
Intake Air Temperature Sensor › Component Information3 pages
- Barometric Pressure Sensor › Component Information › Specifications
- Body Control Module › Component Information › Diagrams › Diagram Information and Instructions2
- Camshaft Position Sensor › Component Information › Diagrams › Diagram Information and Instructions2
Coolant Temperature Sensor/Switch (For Computer) › Component Information4 pages
- Cranking Signal › Component Information › Description and Operation
Crankshaft Position Sensor › Component Information28 pages
Technical Service Bulletins26 pages
- Diagrams › Diagram Information and Instructions2
- Data Link Connector › Component Information › Diagrams
Powertrain Control Module <--> [Engine Control Module] › Component Information13 pages
Technical Service Bulletins10 pages
All Technical Service Bulletins for Powertrain Control Module:5 pages
Customer Interest for Powertrain Control Module:5 pages
- Diagrams › Diagram Information and Instructions23
- Engine Speed Sensor › Component Information › Locations › Engine Speed Sensor23
- Idle Speed/Throttle Actuator - Electronic › Component Information › Locations › Idle Speed Control (ISC) Motor2
- Knock Sensor › Component Information › Locations › Component Locations2
- Automatic Shut Down (ASD) Relay <--> [Main Relay (Computer/Fuel System)] › Component Information › Locations23
- Check Engine Lamp <--> [Malfunction Indicator Lamp] › Component Information › Testing and Inspection
- Manifold Pressure/Vacuum Sensor › Component Information › Specifications234
Oxygen Sensor › Component Information59 pages
Technical Service Bulletins57 pages
All Technical Service Bulletins for Oxygen Sensor:19 pages
- Customer Interest: › 085488 › Aug › 88 › O2 Sensor Heater Relay - Fault C1003 Set2
- All Other Service Bulletins for Oxygen Sensor: › 085488 › Aug › 88 › O2 Sensor Heater Relay - Fault C1003 Set2
- Diagrams › Diagram Information and Instructions2
Oxygen Sensor Heater Relay <--> [Oxygen Sensor Relay] › Component Information › Technical Service Bulletins4 pages
Relays and Modules - Computers and Control Systems22 pages
- Body Control Module › Component Information › Diagrams › Diagram Information and Instructions2
Powertrain Control Module <--> [Engine Control Module] › Component Information13 pages
Technical Service Bulletins10 pages
All Technical Service Bulletins for Powertrain Control Module:5 pages
Customer Interest for Powertrain Control Module:5 pages
- Diagrams › Diagram Information and Instructions23
- Automatic Shut Down (ASD) Relay <--> [Main Relay (Computer/Fuel System)] › Component Information › Locations23
Oxygen Sensor Heater Relay <--> [Oxygen Sensor Relay] › Component Information › Technical Service Bulletins4 pages
Sensors and Switches - Computers and Control Systems123 pages
- Barometric Pressure Sensor › Component Information › Specifications
- Camshaft Position Sensor › Component Information › Diagrams › Diagram Information and Instructions2
Coolant Temperature Sensor/Switch (For Computer) › Component Information4 pages
Crankshaft Position Sensor › Component Information28 pages
Technical Service Bulletins26 pages
- Diagrams › Diagram Information and Instructions2
- Engine Speed Sensor › Component Information › Locations › Engine Speed Sensor23
Intake Air Temperature Sensor › Component Information3 pages
- Knock Sensor › Component Information › Locations › Component Locations2
- Manifold Pressure/Vacuum Sensor › Component Information › Specifications234
Oxygen Sensor › Component Information59 pages
Technical Service Bulletins57 pages
All Technical Service Bulletins for Oxygen Sensor:19 pages
- Customer Interest: › 085488 › Aug › 88 › O2 Sensor Heater Relay - Fault C1003 Set2
- All Other Service Bulletins for Oxygen Sensor: › 085488 › Aug › 88 › O2 Sensor Heater Relay - Fault C1003 Set2
- Diagrams › Diagram Information and Instructions2
- Throttle Full Close Switch › Component Information › Locations
- Throttle Full Open Switch › Component Information › Locations
Throttle Position Sensor › Component Information12 pages
Distance Sensor <--> [Vehicle Speed Sensor] › Component Information3 pages
- Shift Light › Component Information › Description and Operation2
- Throttle Full Close Switch › Component Information › Locations
- Throttle Full Open Switch › Component Information › Locations
Throttle Position Sensor › Component Information12 pages
Distance Sensor <--> [Vehicle Speed Sensor] › Component Information3 pages
- Voltage Signal › Component Information › Description and Operation
Emission Control Systems41 pages
- Air Injection › Air Diverter Solenoid › Component Information › Locations
- Catalytic Converter › Component Information › Service Precautions › Customer Safety Information23
- Emissions Maintenance Light › Component Information › Locations234
- Evaporative Emissions System › Evaporative Emission Control Canister › Component Information › Locations
- Fillpipe Restrictor › Component Information › Description and Operation
Positive Crankcase Ventilation › Component Information › Technical Service Bulletins27 pages
All Technical Service Bulletins for Positive Crankcase Ventilation:9 pages
- Recalls: › 562 › Apr › 94 › Recall - O2 Sensor and CCV Harness2345
- All Other Service Bulletins for Positive Crankcase Ventilation: › 562 › Apr › 94 › Recall - O2 Sensor and CCV Harness2345
All Other Service Bulletins for Positive Crankcase Ventilation:4 pages
- Thermostatic Air Cleaner › Component Information › Locations
Fuel Delivery and Air Induction138 pages
- Fuel Pressure › Fuel Pressure Test Port › Component Information › Locations
- Fuel Pressure Release › System Information › Service and Repair
- Idle Speed › System Information › Specifications2
- Air/Fuel Mixture › System Information › Adjustments
Air Cleaner Housing › Air Filter Element › Component Information › Technical Service Bulletins4 pages
- Carburetor › Choke Relay › Component Information › Locations
- Fillpipe Restrictor › Component Information › Description and Operation
- Fuel › Component Information › Specifications
- Fuel Filler Cap › Component Information › Specifications
- Fuel Filter › Fuel Pressure Release › System Information › Service and Repair
Fuel Injector › Component Information7 pages
Fuel Pressure Regulator › Component Information › Technical Service Bulletins6 pages
- Fuel Pressure Test Port › Component Information › Locations
Fuel Pressure Pulsation Damper › Component Information › Technical Service Bulletins26 pages
- Fuel Rail › Component Information › Locations23
Fuel Tank8 pages
- Fuel Filler Hose › Component Information › Locations
Fuel Gauge Sender › Component Information › Technical Service Bulletins4 pages
- Fuel Tank Pressure Release Valve › Component Information › Locations23
- Idle Speed/Throttle Actuator - Electronic › Component Information › Locations › Idle Speed Control (ISC) Motor2
- Automatic Shut Down (ASD) Relay <--> [Main Relay (Computer/Fuel System)] › Component Information › Locations23
Relays and Modules - Fuel Delivery and Air Induction9 pages
- Rollover/Pressure Relief Valve <--> [Rollover Valve, Fuel Tank] › Component Information › Locations23
Sensors and Switches - Fuel Delivery and Air Induction14 pages
- Throttle Full Close Switch › Component Information › Locations
- Throttle Full Open Switch › Component Information › Locations
Throttle Position Sensor › Component Information12 pages
Throttle Body › Component Information8 pages
- Accelerator Cable <--> [Throttle Cable/Linkage] › Component Information › Service and Repair
- Throttle Full Close Switch › Component Information › Locations
- Throttle Full Open Switch › Component Information › Locations
Throttle Position Sensor › Component Information12 pages
Ignition System92 pages
- Firing Order › Component Information › Specifications
- Camshaft Position Sensor › Component Information › Diagrams › Diagram Information and Instructions2
Crankshaft Position Sensor › Component Information28 pages
Technical Service Bulletins26 pages
- Diagrams › Diagram Information and Instructions2
Distributor, Ignition › Distributor Cap › Component Information › Technical Service Bulletins8 pages
- Ignition Cable › Component Information › Specifications
- Ignition Coil › Component Information › Specifications2
Ignition Control Module › Component Information5 pages
- Knock Sensor › Component Information › Locations › Component Locations2
- Pick-Up Coil, Ignition › Component Information › Locations
Relays and Modules - Ignition System › Ignition Control Module › Component Information5 pages
Sensors and Switches - Ignition System33 pages
- Camshaft Position Sensor › Component Information › Diagrams › Diagram Information and Instructions2
Crankshaft Position Sensor › Component Information28 pages
Technical Service Bulletins26 pages
- Diagrams › Diagram Information and Instructions2
- Ignition Switch › Component Information › Service and Repair
- Knock Sensor › Component Information › Locations › Component Locations2
- Spark Plug › Component Information › Specifications › Gap Specifications2
Transmission Control Systems17 pages
- Actuators and Solenoids - Transmission and Drivetrain › Actuators and Solenoids - A/T › Torque Converter Clutch Solenoid, A/T › Component Information › Testing and Inspection › Shudder After Lockup Engagement2345
- Lamps and Indicators - Transmission and Drivetrain › Lamps and Indicators - Transfer Case › Four Wheel Drive Indicator Lamp › Component Information › Locations2
Sensors and Switches - Transmission and Drivetrain10 pages
Sensors and Switches - A/T › Transmission Speed Sensor, A/T › Component Information8 pages
- Sensors and Switches - M/T › Gear Sensor/Switch, M/T › Component Information › Locations › 4th Gear Switch2