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 There should be a medium amount of resistance as it is withdrawn.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:
Pinpoint Test K: LFC 35/DTC B1935 - Passenger Air Bag Circuit Resistance
Low
Normal Operation
The restraints control module (RCM) monitors the resistance of the
passenger air bag ignitor by
measuring the resistance between pins 6 and 7. If the RCM detects low
resistance between these
pins, it will store a diagnostic trouble code ...
Spark Plugs
Removal and Installation
1. Remove the ignition coil-on-plug. For additional information, refer to
Ignition Coil-On-Plug in this
section.
2. NOTE: Use compressed air to remove any foreign material from the
spark plug well before
removing the spark plu ...
Symptom Chart
Condition
Possible Sources
Action
Dogtracking
Excessive rear
thrust angle.
Front or rear
suspension
components.
Drive axle
damaged.
CHECK the wheel alignment.
ADJUST as necessary
INSPE ...
