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 There should be a medium amount of resistance as it is withdrawn.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:
Valve Tappets
Material
Removal
CAUTION: If removing more than one valve tappet, mark the
components removed for
correct location.
1. Remove the lower intake manifold. For additional information, refer to
Lower Intake Manifold in
this section.
2. Remove the push r ...
Shift Patterns
Upshifts
Transmission upshifting is controlled by the powertrain control
module (PCM). The PCM receives
inputs from various engine or vehicle sensors and driver demands to
control shift scheduling, shift feel
and torque converter clutch (TCC) opera ...
Symptom Charts
Symptom Chart - Air Leak and Wind Noise
Condition
Possible Sources
Action
Air leak around
door perimeter
Loose fit seal.
Seal installed
incorrectly.
Door misaligned.
Scuff plate installed
incor ...
