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:

    Installation
    1. NOTE: The LH side is shown, and the RH is similar. Install the supply manifold and tighten the four bolts. 2. Connect the EGR vacuum line. 3. Install the EGR to exhaust manifold tube. For additional information, refer to Section. 4. NOTE: The eng ...

    Cooling Fan Motor and Shroud
    Removal and Installation 1. Disconnect the battery ground cable. 2. Remove the degas bottle or coolant expansion tank. For additional information, refer to Degas Bottle-4.6L(2V) and 4.6L(4V) in this section. 3. Disconnect the cooling fan electrical connecto ...

    Degas Bottle
    Removal and Installation 1. Drain the coolant. For additional information, refer to Supercharger Cooling System Draining, Filling and Bleeding in this section. 2. Disconnect the coolant hoses. 3. Remove the bolts and the degas bottle. 4. To install ...