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 There should be a medium amount of resistance as it is withdrawn.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:
Removal
1. Raise and support the vehicle.
2. Remove the wheel and tire assembly.
3. Remove the rear brake disc (2C026).
4. Remove the differential housing cover (4033) and drain the lubricant. For
additional information,
refer to Differential Housing Cover in t ...
Vehicle certification label
The National Highway Traffic Safety
Administration Regulations require
that a Safety Compliance Certification
Label be affixed to a vehicle and
prescribe where the Safety Compliance
Certification Label may be located.
The Safety Compliance Certification
Labe ...
Vehicle Identification Number (VIN) Locator
The vehicle identification number (VIN) is a seventeen-digit alphanumeric
code. The VIN is stamped
on a metal tab riveted to the instrument panel, top upper left of the dash. The
VIN number is also found
on the vehicle certification (VC) label.
...
