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 There should be a medium amount of resistance as it is withdrawn.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:
Assembly
1. Lubricate the differential side gear thrust washers and the differential
side gear journals, and
assemble the washers to the gears.
Use SAE 80W-90 Premium Rear Axle Lubricant XY-80W90-QL or equivalent
meeting
Ford specification WSP-M2C197-A.
2. Lub ...
Bearing Whine
Bearing whine is a high-pitched sound similar to a whistle. It is usually
caused by worn/damaged
pinion bearings, which are operating at driveshaft speed. Bearing noise occurs
at all driving speeds.
This distinguishes it from gear whine which usually comes ...
Engine Mount RH
Special Tool(s)
Lifting Bracket, Engine
303-D088 (D93P-6001-A2)
Support Bar, Engine
303-290-A
Removal
1. Install the special tool.
2. Install the special tools.
3. Remove the starter. For additional information, refer to Secti ...
