Ford Mustang (1999-2004) Service Manual: Piston - Ring-to-Groove Clearance
1. Inspect the piston for ring land damage or accelerated wear.

2. Measure the piston ring-to-groove clearance.
- Refer to the appropriate section in Group for the procedure.
- If out of specification, install new components as necessary. Refer to the appropriate section in Group for the procedure.

Piston - Ring End Gap
CAUTION: Use care when fitting piston rings to avoid possible damage to
the piston ring
or the cylinder bore.
CAUTION: Piston rings should not be transferred from one piston to another.
NOTE: Cylin ...
Piston - Pin Diameter
1. Measure the piston pin diameter in two directions at the points shown.
Verify the diameter is
within specification.
Refer to the appropriate section in Group for the procedure.
If out of s ...
Other materials:
EGR System Components
The EGR system returns a portion of the exhaust gas to the intake manifold to
reduce the combustion
temperature. This results in lower nitrous oxide formation.
The powertrain control module (PCM) controls the EGR vacuum regulator solenoid .
The EG ...
General operating tips
Manual Climate Control
• To reduce fog build-up on the windshield during humid weather, select
Defrost. You can also improve clearing by increasing the temperature
and fan speed.
• To reduce humidity build-up inside the vehicle, do not drive with the
syste ...
Bleeding - Components
Special Tool(s)
Worldwide Diagnostic System
(WDS)
418-F224, New Generation STAR (NGS)
Tester
418-F052, or equivalent scan
tool
NGS Flash Cable
418-F120 (007-00531) or
Equivalent
...
