Ford Mustang (1999-2004) Service Manual: 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 originate from the seal area or during the alignment and adjustment of a component to a weatherstrip. Tracing powder can be ordered from Crest Industries as ATR Leak Trace. Carry out the tracing powder test as follows:

a. Clean the weatherstrip.
b. Spray the tracing powder on the mating surface only.
c. Close the door completely. Do not slam the door.
d. Open the door. An imprint is made where the weatherstrip contacted the mating surface seal.
Gaps or a faint imprint will show where there is poor contact with the weatherstrip.

Vibrate Software
Vibrate Software (Rotunda tool number 215-00003) is a diagnostic aid which
will assist in pinpointing
the source of unacceptable vibrations. The engine's crankshaft is the point of
reference for vib ...
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 o ...
Other materials:
Symptom Chart
Condition
Possible Sources
Action
Tires show
excess wear on
edge of tread
Underinflated tires.
Vehicle overloaded.
High-speed cornering.
Incorrect ride height.
Incorrect wheel alignment.
Incorrect tire ...
EGR System Components
The EGR system returns a portion of the exhaust gas to the intake manifold to
reduce the combustion
temperature. This results in lower nitrous oxide formation.
The powertrain control module (PCM) controls the EGR vacuum regulator solenoid .
The EG ...
Connect
1. Install the A/C tube lock coupling spring.
2. Lubricate the inside of the coupling with PAG Refrigerant Compressor Oil
(R-134a Systems) or
equivalent.
3. CAUTION: Use only the new O-ring seals. The use of any O-ring seals
other than
those specified in ...
