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:
Air Bag Disposal - Undeployed Inoperative
WARNING: Always wear safety glasses when repairing an air bag
supplemental restraint
system (SRS) vehicle and when handling an air bag module. This will
reduce the risk of injury
in the event of an accidental deployment.
WARNING: Never probe the c ...
Mounting Arm and Pivot Shaft
Removal
1. Park the windshield wipers in the full upright position. This will
allow for easy access to the
retaining clip on the wiper motor output shaft.
2. Remove the cowl top vent panels.
3. Disconnect the battery ground cable.
4. Disconnect the ...
Component Tests
Ball Joint Inspection
1. Raise and support the vehicle.
2. Prior to performing any inspection of the ball joints, inspect the wheel
bearings.
3. Position a safety stand beneath the front suspension lower arm (3079) to be
tested.
4. While an assistant pul ...
