Ford Mustang (1999-2004) Service Manual: Starting System (Description and Operation)
Starter Motor
The starter motor is a 12-volt unit that has the starter solenoid mounted on the drive end housing and functions as follows:
- The current flows through the solenoid energizing coil until the solenoid plunger is at the end of its travel.
- The plunger closes a set of contacts that bypass the energizing coil, letting the holding coil keep the starter drive engaged and passing starting current to the starter motor.
- The motor is energized when the starter solenoid contacts are closed.
- The starter drive engages the flywheel ring gear and starts the engine.
- An overrunning clutch in the starter drive protects the starter motor from excessive speed when the engine starts.
Starter Relay
The starter interrupt relay consists of:
- pull in coil and contacts
- When the ignition switch is in the START position:
- the pull-in coil is activated and pulls the contacts together.
- current passes through the starter relay from the engine compartment power distribution box to the starter solenoid.
Clutch Pedal Position (CPP) Switch
The CPP switch for:
- a manual transmission closes when the clutch pedal is depressed, completing the starting circuit.
- an automatic transmission is a jumper inserted in place of the CPP switch to complete the circuit.
Starter System - Operation
When the ignition switch is turned to the START position the starter relay switches power to the starter solenoid causing the starter motor to engage as long as:
- the clutch pedal is depressed (manual transmission only).
- the digital transmission range (TR) sensor is in PARK or NEUTRAL (automatic transmission only).
Starting System
General Specifications
Torque Specifications
...
Starting System (Diagnosis and Testing)
Refer to Wiring Diagrams Cell 20 , Starting System for schematic and
connector information.
Special Tool(s)
Digital Multimeter
105-R0051 or equivalent
...
Other materials:
Front passenger sensing system
WARNING: Even with Advanced Restraints Systems, children 12
and under should be properly restrained in a rear seating
position. Failure to follow this could seriously increase the risk of injury
or death.
WARNING: Sitting improperly out of position or with the ...
Charging System (Diagnosis and Testing)
Refer to Wiring Diagrams Cell 12 , Charging System for schematic and
connector information.
Special Tool(s)
73III Automotive Meter
105-R0057 or equivalent
SABRE Premium Battery and
Electrical System Tester
010-00736 or equival ...
Engine Mount RH
Special Tool(s)
Lifting Bracket, Engine
303-D088 (D93P-6001-A2)
Support Bar, Engine
303-290-A
Removal
1. Install the special tool.
2. Install the special tools.
3. Remove the starter. For additional information, refer to Secti ...