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 There should be a medium amount of resistance as it is withdrawn.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:
Four Wheel Anti-Lock Brake System (4WABS) Hydraulic Control Unit (HCU)
NOTE: This procedure only needs to be performed if the 4-wheel
anti-lock brake (4WABS) hydraulic
control unit (HCU) has been installed new or if the HCU lines have been
opened.
1. Clean all dirt from and remove the brake master cylinder filler cap
...
Refrigerant System Filtering Following Air Conditioning (A/C) Component
Installation
Special Tool(s)
Set, A/C Fittings
412-DS028 (014-00333, D93L-
19703-B) or equivalent
1. Install the new A/C compressor. For additional information, refer to
Section.
2. Install the new suction accumulator/drier. For additional information, ...
Removal
1. CAUTION: The vehicle must be on level ground and at curb height.
Mark the rear shock absorbers relative to their protective sleeve.
During installation, raise the suspension to this reference mark before
tightening the
suspension component fasteners.
...
