Ford Mustang (1999-2004) Service Manual: 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. CAUTION: In order to prevent foreign material from contaminating
the engine block
or the engine front cover it is necessary to seal the coolant and oil
passages of both
components. Failure to follow these directions will result in engine damage.
CAU ...
Cleaning
1. Fabricate a cleaning tool from a 1/8 inch diameter brazing rod.
2. Cut an abrasive pad from maroon colored 3M Scotch Brite with the
dimensions corresponding
to the coupling size.
3. Assemble the pad to the tool.
4. Coat the abrasive pad with PAG Refri ...
Air Intake Scoop Bracket
Removal and Installation
1. Remove the air intake scoop. For additional information, refer to Air
Intake Scoop in this section.
2. Remove the air intake scoop bracket nut at the throttle body.
3. Remove the exhaust gas recirculation (EGR) vacuum regulat ...
