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 There should be a medium amount of resistance as it is withdrawn.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:
Parking brake
WARNING: If the parking brake is fully released, but the brake
warning lamp remains illuminated, the brakes may not be
working properly. See your authorized dealer as soon as possible.
WARNING: Always set the parking brake fully and make sure
that the transmis ...
Leakage Inspection
CAUTION: Do not try to stop the fluid leak by increasing the torque
beyond specifications.
This may cause damage to the case threads.
Check the fluid filler tube connection at the transmission case. If
leakage is found here, install a new
grommet.
Ch ...
Engine (Diagnosis and Testing)
Special Tool(s)
Commercially Available
Leakdown Tester
Quick Disconnect Compression
Tester
134-R0212 or equivalent
Dial Indicator Gauge Adapter
303-007 (TOOL-6565-AB) or
equivalent
Dial Indicator Gauge with
Holdin ...
