Ford Mustang (1999-2004) Service Manual: Starter Drive and Flywheel Ring Gear Inspection
1. Remove the starter motor. For additional information, refer to Starter Motor-3.8L or Starter Motor-4.6L in this section.
2. Check the wear patterns on the starter drive gear and the flywheel ring gear . If the wear pattern is normal, install the starter motor. For additional information, refer to Starter Motor-3.8L or Starter Motor-4.6L in this section.

3. If the starter drive gear and the flywheel ring gear are not fully meshing and both of the gears are scored or damaged, install a new starter motor. For additional information refer to Starter Motor-3.8L or Starter Motor-4.6L in this section.
If necessary, install a new flywheel.

Component Tests
Starter Motor -Voltage Drop Test
WARNING: When servicing starter motor or carrying out other underhood
work in the
vicinity of the starter motor, be aware that the heavy gauge battery input lead
at ...
Relay Switch
1. Disconnect the battery ground cable. For additional information, refer
to Section.
2. Remove the power distribution box cover.
3. Remove the starter relay from the power distribution box.
I ...
Other materials:
Engine block heater
WARNING: Failure to follow engine block heater instructions
could result in property damage or physical injury.
WARNING: Do not use your heater with ungrounded electrical
systems or two-pronged (cheater) adapters. There is a risk of
electrical shock.
Note: The ...
Drive Pinion
Special Tool(s)
Adapter for 205-S127
205-105 (T76P-4020-A3)
Adapter for 205-S127
205-109 (T76P-4020-A9)
Adapter for 205-S127
205-110 (T76P-4020-A10)
Adapter for 205-S127
205-111 (T76P-4020-A11)
Adapter for 20 ...
Pinpoint Tests
CAUTION: Before removing and installing the GEM or its connectors,
disconnect the battery. Failure to follow this caution will
result in the GEM storing many erroneous DTCs and
may result in the GEM exhibiting erratic operation after installation.
CAUTI ...
