Dakota 2WD V6-239 3.9L (1987): Powertrain Management

Also for this vehicle: Dakota 2WD L4-153 2.5L SOHC (1990), Dakota 2WD L4-153 2.5L VIN K FI (1989), Dakota 2WD L4-2.5L VIN P (2001), Dakota 2WD V6-239 3.9L Magnum (1996), Dakota 2WD V6-3.7L (2009), Dakota 2WD V6-3.9L VIN X (1997), Dakota 2WD V8-318 5.2L (1991), Dakota 2WD V8-318 5.2L Magnum (1995), Dakota 2WD V8-4.7L (2008), Dakota 2WD V8-4.7L Flex Fuel (2009), Dakota 2WD V8-4.7L VIN J (2005), Dakota 2WD V8-4.7L VIN N (2001), Dakota 2WD V8-4.7L VIN P Flex Fuel (2007), Dakota 2WD V8-5.9L VIN Z (1998), Dakota 2WD V8-5.9L VIN Z LDC (2000), Dakota 4WD V6-239 3.9L (1990), Dakota 4WD V6-239 3.9L Magnum (1996), Dakota 4WD V6-239 3.9L VIN X FI (1989), Dakota 4WD V6-3.7L (2008), Dakota 4WD V6-3.7L VIN K (2005), Dakota 4WD V6-3.9L VIN X (1997), Dakota 4WD V8-318 5.2L (1991), Dakota 4WD V8-318 5.2L Magnum (1995), Dakota 4WD V8-4.7L (2009), Dakota 4WD V8-4.7L Flex Fuel (2008), Dakota 4WD V8-4.7L VIN J (2007), Dakota 4WD V8-4.7L VIN N (2000), Dakota 4WD V8-4.7L VIN P Flex Fuel (2007), Dakota 4WD V8-5.2L VIN Y (1998), Dakota Quad Cab 2WD V6-3.9L VIN X (2002), Dakota Quad Cab 2WD V8-4.7L VIN N (2001), Dakota Quad Cab 2WD V8-5.9L VIN Z LDC (2002), Dakota Quad Cab 4WD V6-3.9L VIN X (2001), Dakota Quad Cab 4WD V8-4.7L VIN N (2002), Dakota Quad Cab 4WD V8-5.9L VIN Z LDC (2001), Dakota R/T 2WD V8-5.9L VIN Z (1998), Dakota R/T 2WD V8-5.9L VIN Z LDC (1999).

Choose Sections to see everything in a chapter, or a chapter title to start at its first page.

1. 01Relays and ModulesRelays and Modules: Sections
2. 02Sensors and SwitchesSensors and Switches: Sections
3. 03MaintenanceMaintenance: Sections
4. 04Engine, Cooling and ExhaustEngine, Cooling and Exhaust: Sections
5. 05Powertrain ManagementPowertrain Management: Sections
   • Relays and Modules - Powertrain Management9 pages

     • Relays and Modules - Computers and Control Systems5 pages

       • Body Control Module › Component Information › Diagrams › Diagram Information and Instructions
       • Power Module <--> [Electronic Spark Control Module] › Component Information › Locations2
       • Engine Control Module › Component Information2 pages

         • Locations
         • Diagrams › Diagram Information and Instructions
     • Relays and Modules - Emission Control Systems › Emissions Maintenance Lamp Relay › Component Information › Diagrams › Diagram Information and Instructions
     • Relays and Modules - Ignition System3 pages

       • Power Module <--> [Electronic Spark Control Module] › Component Information › Locations2
       • Ignition Control Module › Component Information › Diagrams › Diagram Information and Instructions
   • Sensors and Switches - Powertrain Management45 pages

     • Sensors and Switches - Computers and Control Systems29 pages

       • Camshaft Position Sensor › Component Information › Diagrams › Diagram Information and Instructions
       • Coolant Temperature Sensor/Switch (For Computer) › Component Information5 pages

         • Specifications
         • Locations › Coolant Temperature Sensor2
         • Description and Operation › Coolant Temperature Switch2
       • Crankshaft Position Sensor › Component Information4 pages

         • Diagrams › Diagram Information and Instructions
         • Service and Repair › Removal & Installation23
       • Ignition Hall Effect Sensor › Component Information › Locations2
       • Intake Air Temperature Sensor › Component Information › Specifications23
       • Charge Temperature Switch <--> [Intake Air Temperature Switch] › Component Information › Locations2
       • Manifold Pressure/Vacuum Sensor › Component Information › Specifications2
       • Oxygen Sensor › Component Information2 pages

         • Locations
         • Diagrams › Diagram Information and Instructions
       • Intake Air Temperature (IAT) Sensor <--> [Throttle Body Temperature Sensor] › Component Information › Specifications
       • Carburetor Switch <--> [Throttle Full Close Switch] › Component Information › Locations2
       • Throttle Position Sensor › Component Information2 pages

         • Specifications
         • Diagrams › Diagram Information and Instructions
       • Vacuum Switch › Component Information › Description and Operation
       • Vehicle Speed Sensor › Component Information2 pages

         • Locations
         • Diagrams › Diagram Information and Instructions
     • Sensors and Switches - Fuel Delivery and Air Induction5 pages

       • Intake Air Temperature (IAT) Sensor <--> [Throttle Body Temperature Sensor] › Component Information › Specifications
       • Carburetor Switch <--> [Throttle Full Close Switch] › Component Information › Locations2
       • Throttle Position Sensor › Component Information2 pages

         • Specifications
         • Diagrams › Diagram Information and Instructions
     • Sensors and Switches - Ignition System11 pages

       • Camshaft Position Sensor › Component Information › Diagrams › Diagram Information and Instructions
       • Crankshaft Position Sensor › Component Information4 pages

         • Diagrams › Diagram Information and Instructions
         • Service and Repair › Removal & Installation23
       • Ignition Hall Effect Sensor › Component Information › Locations2
       • Ignition Switch › Component Information4 pages

         • Locations
         • Diagrams › Diagram Information and Instructions23
   • Tune-up and Engine Performance Checks49 pages

     • Fuel Pressure › System Information › Specifications
     • Idle Speed › System Information › Technical Service Bulletins42 pages

       • Customer Interest: › 185886 › Dec › 86 › Ignition Timing - Engine Spark Knock
       • All Technical Service Bulletins for Idle Speed:21 pages

         • 250387A › Nov › 87 › High Altitude Conversion Packages234567891011121314151617181920
         • 185886 › Dec › 86 › Ignition Timing - Engine Spark Knock
       • All Other Service Bulletins for Idle Speed: › 250387A › Nov › 87 › High Altitude Conversion Packages234567891011121314151617181920
     • Ignition Timing › Timing Marks and Indicators › System Information › Diagrams
     • Distributor, Ignition2 pages

       • Vacuum Advance Unit <--> [Distributor Advance Unit] › Component Information › Locations
       • Distributor Cap › Component Information › Service and Repair
     • Spark Plug › Component Information › Specifications
     • Compression Check › System Information › Specifications
     • Valve Clearance › System Information › Adjustments
   • Computers and Control Systems79 pages

     • Intake Air Temperature Sensor › Component Information › Specifications23
     • Charge Temperature Switch <--> [Intake Air Temperature Switch] › Component Information › Locations2
     • Body Control Module › Component Information › Diagrams › Diagram Information and Instructions
     • Camshaft Position Sensor › Component Information › Diagrams › Diagram Information and Instructions
     • Coolant Temperature Sensor/Switch (For Computer) › Component Information5 pages

       • Specifications
       • Locations › Coolant Temperature Sensor2
       • Description and Operation › Coolant Temperature Switch2
     • Crankshaft Position Sensor › Component Information4 pages

       • Diagrams › Diagram Information and Instructions
       • Service and Repair › Removal & Installation23
     • Data Link Connector › Component Information › Locations
     • Power Module <--> [Electronic Spark Control Module] › Component Information › Locations2
     • Engine Control Module › Component Information2 pages

       • Locations
       • Diagrams › Diagram Information and Instructions
     • Feedback Control Solenoid › Component Information › Description and Operation
     • Ignition Hall Effect Sensor › Component Information › Locations2
     • Idle Speed/Throttle Actuator - Electronic › Component Information › Specifications234
     • Idle Speed/Throttle Actuator - Mechanical › Idle Speed Vacuum Solenoid Valve › Component Information › Technical Service Bulletins4 pages

       • Customer Interest for Idle Speed Vacuum Solenoid Valve: › 185986 › Dec › 86 › Vacuum Solenoid - Intermittent/Constant High Idle Speed2
       • All Technical Service Bulletins for Idle Speed Vacuum Solenoid Valve: › 185986 › Dec › 86 › Vacuum Solenoid - Intermittent/Constant High Idle Speed2
     • Idle Up Control Valve › Component Information › Adjustments
     • Manifold Pressure/Vacuum Sensor › Component Information › Specifications2
     • Oxygen Sensor › Component Information2 pages

       • Locations
       • Diagrams › Diagram Information and Instructions
     • Relays and Modules - Computers and Control Systems5 pages

       • Body Control Module › Component Information › Diagrams › Diagram Information and Instructions
       • Power Module <--> [Electronic Spark Control Module] › Component Information › Locations2
       • Engine Control Module › Component Information2 pages

         • Locations
         • Diagrams › Diagram Information and Instructions
     • Sensors and Switches - Computers and Control Systems29 pages

       • Camshaft Position Sensor › Component Information › Diagrams › Diagram Information and Instructions
       • Coolant Temperature Sensor/Switch (For Computer) › Component Information5 pages

         • Specifications
         • Locations › Coolant Temperature Sensor2
         • Description and Operation › Coolant Temperature Switch2
       • Crankshaft Position Sensor › Component Information4 pages

         • Diagrams › Diagram Information and Instructions
         • Service and Repair › Removal & Installation23
       • Ignition Hall Effect Sensor › Component Information › Locations2
       • Intake Air Temperature Sensor › Component Information › Specifications23
       • Charge Temperature Switch <--> [Intake Air Temperature Switch] › Component Information › Locations2
       • Manifold Pressure/Vacuum Sensor › Component Information › Specifications2
       • Oxygen Sensor › Component Information2 pages

         • Locations
         • Diagrams › Diagram Information and Instructions
       • Intake Air Temperature (IAT) Sensor <--> [Throttle Body Temperature Sensor] › Component Information › Specifications
       • Carburetor Switch <--> [Throttle Full Close Switch] › Component Information › Locations2
       • Throttle Position Sensor › Component Information2 pages

         • Specifications
         • Diagrams › Diagram Information and Instructions
       • Vacuum Switch › Component Information › Description and Operation
       • Vehicle Speed Sensor › Component Information2 pages

         • Locations
         • Diagrams › Diagram Information and Instructions
     • Intake Air Temperature (IAT) Sensor <--> [Throttle Body Temperature Sensor] › Component Information › Specifications
     • Carburetor Switch <--> [Throttle Full Close Switch] › Component Information › Locations2
     • Throttle Position Sensor › Component Information2 pages

       • Specifications
       • Diagrams › Diagram Information and Instructions
     • Vacuum Switch › Component Information › Description and Operation
     • Vehicle Speed Sensor › Component Information2 pages

       • Locations
       • Diagrams › Diagram Information and Instructions
   • Emission Control Systems41 pages

     • Secondary Air Supply <--> [Air Injection]23 pages

       • Upstream Solenoid <--> [Air Injection Vacuum Control Solenoid Valve] › Component Information › Description and Operation
       • Air Diverter Solenoid › Component Information › Description and Operation
       • Air Diverter Valve › Component Information5 pages

         • Description and Operation › Diverter Valve2
         • Service and Repair › Diverter Valve Replacement23
       • Air Injection Check Valve › Component Information › Description and Operation23
       • Air Injection Control Valve › Component Information3 pages

         • Description and Operation
         • Testing and Inspection › Air Switching Valve2
       • Air Injection Pump › Component Information5 pages

         • Service Precautions23
         • Service and Repair › Air Injection Pump Replacement2
       • Air Injection Relief Valve › Component Information › Testing and Inspection
       • Pulsair Valve, Secondary Air Injection › Component Information › Description and Operation › Pulse Air Aspiration System2
       • Pulse Air Feeder <--> [Pulsed Secondary Air Injection] › Component Information › Description and Operation2
     • Catalytic Converter › Component Information › Description and Operation
     • Early Fuel Evaporation (EFE) › EFE Valve › Component Information › Description and Operation2
     • Service Reminder Indicator Light <--> [Emissions Maintenance Light] › Emissions Maintenance Lamp Relay › Component Information › Diagrams › Diagram Information and Instructions
     • Evaporative Emissions System4 pages

       • Canister Purge Solenoid › Component Information › Description and Operation
       • Evaporative Check Valve › Component Information › Description and Operation
       • Evaporative Emission Control Canister › Component Information › Locations2
     • Exhaust Gas Recirculation › EGR Valve › Component Information › Locations2
     • Positive Crankcase Ventilation › Positive Crankcase Ventilation Valve › Component Information › Locations
     • Relays and Modules - Emission Control Systems › Emissions Maintenance Lamp Relay › Component Information › Diagrams › Diagram Information and Instructions
     • Thermostatic Air Cleaner › Component Information5 pages

       • Diagrams23
       • Testing and Inspection › Heated Inlet Air System (HIAS)2
     • Orifice Spark Advance Control (OSAC) <--> [Vacuum Restrictor] › Component Information › Description and Operation
   • Fuel Delivery and Air Induction151 pages

     • Fuel Pressure › System Information › Specifications
     • Idle Speed › System Information › Technical Service Bulletins42 pages

       • Customer Interest: › 185886 › Dec › 86 › Ignition Timing - Engine Spark Knock
       • All Technical Service Bulletins for Idle Speed:21 pages

         • 250387A › Nov › 87 › High Altitude Conversion Packages234567891011121314151617181920
         • 185886 › Dec › 86 › Ignition Timing - Engine Spark Knock
       • All Other Service Bulletins for Idle Speed: › 250387A › Nov › 87 › High Altitude Conversion Packages234567891011121314151617181920
     • Altitude Compensator › Component Information › Technical Service Bulletins › High Altitude Conversion Packages234567891011121314151617181920
     • Carburetor63 pages

       • Accelerator Pump › Component Information › Technical Service Bulletins › Carburetor Adjustments - Manual Revisions234567891011121314151617181920
       • Carburetor Jet › Component Information › Technical Service Bulletins › High Altitude Conversion Packages234567891011121314151617181920
       • Idle Enrichment Switch <--> [Carburetor Solenoid] › Component Information › Description and Operation
       • Choke Plate › Component Information › Locations
       • Choke Pull-off › Component Information › Locations
       • Float Bowl Air Vent Valve › Component Information › Technical Service Bulletins › Carburetor Adjustments - Manual Revisions234567891011121314151617181920
     • Fuel Pump › Fuel Pressure › System Information › Specifications
     • Fuel Tank › Fuel Gauge Sender › Component Information4 pages

       • Locations
       • Diagrams › Diagram Information and Instructions23
     • Idle Speed Control (Linkage) › Component Information › Adjustments
     • Idle Speed/Throttle Actuator - Electronic › Component Information › Specifications234
     • Idle Speed/Throttle Actuator - Mechanical › Idle Speed Vacuum Solenoid Valve › Component Information › Technical Service Bulletins4 pages

       • Customer Interest for Idle Speed Vacuum Solenoid Valve: › 185986 › Dec › 86 › Vacuum Solenoid - Intermittent/Constant High Idle Speed2
       • All Technical Service Bulletins for Idle Speed Vacuum Solenoid Valve: › 185986 › Dec › 86 › Vacuum Solenoid - Intermittent/Constant High Idle Speed2
     • Idle Up Control Valve › Component Information › Adjustments
     • Sensors and Switches - Fuel Delivery and Air Induction5 pages

       • Intake Air Temperature (IAT) Sensor <--> [Throttle Body Temperature Sensor] › Component Information › Specifications
       • Carburetor Switch <--> [Throttle Full Close Switch] › Component Information › Locations2
       • Throttle Position Sensor › Component Information2 pages

         • Specifications
         • Diagrams › Diagram Information and Instructions
     • Throttle Body › Intake Air Temperature (IAT) Sensor <--> [Throttle Body Temperature Sensor] › Component Information › Specifications
     • Carburetor Switch <--> [Throttle Full Close Switch] › Component Information › Locations2
     • Throttle Position Sensor › Component Information2 pages

       • Specifications
       • Diagrams › Diagram Information and Instructions
   • Ignition System30 pages

     • Ignition Timing › Timing Marks and Indicators › System Information › Diagrams
     • Ignition Ballast Resistor › Component Information › Specifications
     • Camshaft Position Sensor › Component Information › Diagrams › Diagram Information and Instructions
     • Crankshaft Position Sensor › Component Information4 pages

       • Diagrams › Diagram Information and Instructions
       • Service and Repair › Removal & Installation23
     • Distributor, Ignition2 pages

       • Vacuum Advance Unit <--> [Distributor Advance Unit] › Component Information › Locations
       • Distributor Cap › Component Information › Service and Repair
     • Power Module <--> [Electronic Spark Control Module] › Component Information › Locations2
     • Ignition Coil › Component Information › Specifications
     • Ignition Control Module › Component Information › Diagrams › Diagram Information and Instructions
     • Pick-Up Coil, Ignition › Component Information › Specifications
     • Relays and Modules - Ignition System3 pages

       • Power Module <--> [Electronic Spark Control Module] › Component Information › Locations2
       • Ignition Control Module › Component Information › Diagrams › Diagram Information and Instructions
     • Sensors and Switches - Ignition System11 pages

       • Camshaft Position Sensor › Component Information › Diagrams › Diagram Information and Instructions
       • Crankshaft Position Sensor › Component Information4 pages

         • Diagrams › Diagram Information and Instructions
         • Service and Repair › Removal & Installation23
       • Ignition Hall Effect Sensor › Component Information › Locations2
       • Ignition Switch › Component Information4 pages

         • Locations
         • Diagrams › Diagram Information and Instructions23
     • Spark Plug › Component Information › Specifications
     • Orifice Spark Advance Control (OSAC) <--> [Vacuum Restrictor] › Component Information › Description and Operation
   • Transmission Control Systems7 pages

     • Actuators and Solenoids - Transmission and Drivetrain › Actuators and Solenoids - A/T › Torque Converter Clutch Solenoid, A/T › Component Information › Locations
     • Lamps and Indicators - Transmission and Drivetrain5 pages

       • Lamps and Indicators - A/T › Temperature Warning Indicator - A/T › Component Information › Testing and Inspection2
       • Lamps and Indicators - Transfer Case › Four Wheel Drive Indicator Lamp › Component Information3 pages

         • Locations
         • Diagrams › Diagram Information and Instructions2
     • Relays and Modules - Transmission and Drivetrain › Relays and Modules - A/T › Torque Converter Clutch Relay › Component Information › Locations
6. 06Transmission and DrivetrainTransmission and Drivetrain: Sections
7. 07Brakes and Traction ControlBrakes and Traction Control: Sections
8. 08Starting and ChargingStarting and Charging: Sections
9. 09Power and Ground DistributionPower and Ground Distribution: Sections
10. 10Steering and SuspensionSteering and Suspension: Sections
11. 11Heating and Air ConditioningHeating and Air Conditioning: Sections
12. 12Restraint SystemsRestraint Systems: Sections
13. 13Accessories and Optional EquipmentAccessories and Optional Equipment: Sections
14. 14Body and FrameBody and Frame: Sections
15. 15Cruise ControlCruise Control: Sections
16. 16Instrument Panel, Gauges and Warning IndicatorsInstrument Panel, Gauges and Warning Indicators: Sections
17. 17Lighting and HornsLighting and Horns: Sections
18. 18Wiper and Washer SystemsWiper and Washer Systems: Sections