Ford Mustang (1999-2004) Service Manual: Index Card
Place an index card or a piece of paper between the weatherstrip and the sealing surface, then close the door. Slowly withdraw the index card or paper after the door is closed and check the amount of pressure on the weatherstrip. There should be a medium amount of resistance as it is withdrawn.
Continue around the entire seal area. If there is little or no resistance, this indicates insufficient contact to form a good seal. At these points, the door, the glass, or the weatherstrip is out of alignment.

Tracing Powder
Tracing powder is used to check both the uniformity of contact and the
tension of a seal against its
sealing surface. These tests are usually done when a suspected air leak/noise
appears to originat ...
Noise, Vibration and Harshness (NVH) (Diagnosis and Testing)
Special Tool(s)
ChassisEAR
107-R2102 or equivalent
Electronic Vibration Analyzer
100-F027 (014-00344) or
equivalent
EngineEAR
107-R2100 or equivalent
...
Other materials:
Bearings - Inspection
NOTE: If any of the following conditions exist, install a new
bearing.
1. Inspect the bearing for a bent cage.
2. Inspect bearings for galling (metal smears on roller ends).
Galling is caused by overheating, poor lubrication or an overload
situatio ...
Symptom Chart
Condition
Possible Sources
Action
Dogtracking
Excessive rear
thrust angle.
Front or rear
suspension
components.
Drive axle
damaged.
CHECK the wheel alignment.
ADJUST as necessary
INSPE ...
Piston - Selection
NOTE: The cylinder bore must be within the specifications for
taper and out-of-round before fitting a
piston.
1. Select a piston size based on the cylinder bore.
2. NOTE: For precision fit, new pistons are divided into three
categories within each size ...
