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 There should be a medium amount of resistance as it is withdrawn.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:
Engine - Mach I 4.6L (4V)
General Specifications
Engine Specifications
a - Newly Installed-Refers to the condition of the "NEW" drive belt
before the engine has made no more
than one rotation and before the belt has had a chance to stretch or seat
into the pu ...
Installation
1. Inspect the rear axle pinion flange seal journal for rust, nicks, and
scratches prior to installing
the flange. Polish the seal journal with fine crocus cloth, if necessary.
2. Lubricate the rear axle pinion flange splines.
Use SAE 75W-140 High Performa ...
Scheduled Maintenance
GENERAL MAINTENANCE INFORMATION
Why Maintain Your Vehicle?
Carefully following the maintenance schedule helps protect against major
repair expenses resulting from neglect or inadequate maintenance and
may help to increase the value of your vehicle when you sel ...
