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 There should be a medium amount of resistance as it is withdrawn.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:
Warning lamps and indicators
These indicators can alert you to a vehicle condition that may become
serious enough to cause expensive repairs. Many lights will illuminate
when you start your vehicle to make sure they work. If any light remains
on after starting the vehicle, refer to the re ...
Component Tests
Driveline Vibration
An analysis of driveline vibration can also be conducted using the Vibration
Analyzer; follow the
manufacturer's directions.
Driveline vibration exhibits a higher frequency and lower amplitude than does
high-speed shake.
Driveline vibra ...
Transmission Electronic Control System
The powertrain control module (PCM) and its input/output network
control the following transmission
operations:
Shift timing
Line pressure (shift feel)
Torque converter clutch
The transmission control is separate from the engine control s ...
