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 There should be a medium amount of resistance as it is withdrawn.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:
Driveline Angle Inspection
Special Tool(s)
Anglemaster II Driveline
Inclinometer
164-R2402 or equivalent
NOTE: An incorrect driveline angle can cause a vibration or shudder.
1. Check the vehicle for evidence or overload or sagging. Check for specified
air pressures
in ...
Component Tests
Steering Linkage
1. NOTE: Excessive vertical motion of the studs relative to the
sockets may indicate excessive
wear.
With the parking brake applied, perform the following:
Have an assistant rotate the steering wheel back and forth 360 degrees
and watch ...
Refrigerant Identification Testing
Special Tool(s)
Refrigerant Identifier with Air-
Radicator
198-00003 or equivalent
1. NOTE: An A/C refrigerant analyzer must be used to identify gas
samples taken directly from the
refrigeration system or storage containers prior to recoveri ...
