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 There should be a medium amount of resistance as it is withdrawn.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:
Torque Converter Diagnosis
Prior to the installation of a new or remanufactured torque
converter, all diagnostic procedures must be
followed. This is to prevent the unnecessary installation of torque
converters. Only after a complete
diagnostic evaluation can the decision be m ...
Crankshaft Front Oil Seal
Special Tool(s)
Crankshaft Seal
Installer/Aligner
303-335 (T88T-6701-A)
Front Cover Seal Remover
303-107 (T74P-6700-A)
Crankshaft Seal Installer
303-635
Crankshaft Damper Replacer
303-102 (T74P-6316-B)
...
Installation
NOTE: Do not use a fiber disc to clean the surfaces. Fibers from
the disc can get into the oil pan and
oil and clog the oil bypass valve.
1. Clean and inspect the cylinder head for flatness.
2. Install a new head gasket on the cylinder block with the sm ...
