Ford Mustang (1999-2004) Service Manual: 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.
3. NOTE: One ignition coil is shown, and the others are similar.
Disconnect the connector from the ignition coil (12029).

4. Remove the bolt and the ignition coil.

Installation
1. NOTE: Verify the ignition coil spring is correctly located inside the ignition coil boot and there is no damage to the tip of the boot.
To install, reverse the removal procedure.
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 ...
Spark Plug
Removal
1. Remove the ignition coil on plug. For additional information, refer to
Ignition Coil-Coil On Plug
in this section.
2. NOTE: Use compressed air to remove any foreign material from the ...
Other materials:
Anti-Theft - Passive Anti-Theft System (PATS) (Diagnosis and Testing)
Refer to Wiring Diagrams Cell 112 , Anti-Theft for schematic and connector
information.
Refer to Wiring Diagrams Cell 60 , Instrument Cluster for schematic and
connector information.
Special Tool(s)
73III Automotive Meter
105-R0057 or equivalen ...
Brake Booster - Vacuum (Description and Operation)
Power Brake Booster
The vacuum type power brake booster (2005):
is a dual diaphragm, vacuum assisted power brake booster
reduces brake pedal force and travel distance.
is located on the LH side of the bulkhead in the engine compartment,
be ...
Pinpoint Tests
PINPOINT TEST A: THE ENGINE DOES NOT CRANK AND THE
RELAY DOES CLICK
Test Step
Result / Action to Take
A1 CHECK THE VOLTAGE TO THE STARTER RELAY
YesGO to A2 .
No
REPAIR circuit 1050 (LG/VT) for an open. TEST the
system for normal operation. ...
