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. Install the intake manifold and gaskets, tighten the bolts in the sequence shown. 2. NOTE: The O-ring is to be installed on the top of the thermostat. Install the water thermostat and the O-ring. Install a new O-ring as necessary. 3. Install the wa ...

    Arm - Lower
    Removal CAUTION: Suspension fasteners are critical parts because they affect performance of vital components and systems and their failure can result in major service expense. A new part with the same part number or an equivalent part must be installed, if i ...

    Ignition Lock Cylinder - Functional
    Removal and Installation 1. Disconnect the battery ground cable. For additional information, refer to Section. 2. Remove the ignition switch lock cylinder (11582). 1. Insert the ignition key and turn to the RUN position. 2. Using a 1/8-inch d ...