Ford Mustang (1999-2004) Service Manual: Engine Ignition (Description and Operation)

Ford Mustang (1999-2004) Service Manual / Engine / Engine Ignition - 4.6L (2V) / Engine Ignition (Description and Operation)

Eight separate ignition coils (12029):

  • are mounted directly above each spark plug (12405).
  • are controlled by the powertrain control module (PCM) for correct firing sequence.

The spark plug:

  • changes the high voltage pulse into a spark which ignites the fuel and air mixture.
  • originally equipped on the vehicle has a platinum-enhanced active electrode for long life.

Crankshaft position (CKP) sensor (6C315):

NOTE: Initial engine ignition timing is set at 10 degrees +- 2 degrees before top dead center (BTDC) and is not adjustable. For additional information, refer to the Powertrain Control/Emissions Diagnosis (PC/ED) manual.

  • is a variable reluctance sensor triggered by a 36-minus-1 tooth trigger pulse wheel located on the crankshaft (6303) inside the engine front cover (6019).

The sine wave type signal generated from the crankshaft position sensor provides two types of information:

  • position of the crankshaft in 10 degree increments
  • the crankshaft speed (rpm)

The powertrain control module (PCM) (12A650) uses this information to determine ignition coil turn ON and turn OFF times and misfire detection.

Engine Ignition (DIAGNOSIS AND TESTING)

Refer to the Powertrain Control/Emissions Diagnosis (PC/ED) manual.

    Engine Ignition - 4.6L (2V)
    General Specifications Torque Specifications ...

    Ignition Coil - Coil On Plug
    Removal 1. Disconnect the battery ground cable (14301). For additional information, refer to Section. 2. Remove the air cleaner outlet tube (9B659). For additional information, refer to Section ...

    Other materials:

    Switch
    Removal 1. Remove the climate control assembly. For additional information, refer to Control Assembly in this section. 2. NOTE: All three switches are removed the same. Remove the knob. 3. Remove the screw. 4. Rotate the switch and remove it from the cont ...

    Instrument Cluster Self-Diagnostic Mode
    To enter the instrument cluster self-diagnostic mode, press and hold the instrument cluster SELECT/RESET button, turn the ignition switch to the RUN position, and then continue pressing the SELECT/RESET button (five seconds) until tESt is displayed in th ...

    Bypass Tube - 3.8L
    Material Item Specification Motorcraft Premium Gold Engine Coolant VC-7-A (in Oregon VC-7-B) (yellow color) WSS-M97B51- A1 Removal and Installation 1. Drain the engine coolant. For additional information, refer to Cooling System Dra ...