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:
Fuel Charging and Controls
The fuel injection supply manifold (9F792):
delivers fuel to the fuel injector.
receives fuel from the fuel supply line.
The throttle body:
controls air supply to the upper intake manifold by positioning the
throttle plate.
connects the accelerator ca ...
Sync applications and services (if equipped)
Note: In order for the following features to work, your cellular phone
must be compatible with SYNC. To check your phone’s compatibility, visit
www.SYNCMyRide.com, www.SYNCMyRide.ca or www.syncmaroute.ca.
• SYNC Services (if equipped, United States only): ...
Idle Air Control (IAC) Valve - Mach I
Removal and Installation
1. Remove the air intake scoop. For additional
information, refer to Section.
2. Disconnect the idle air control (IAC) valve electrical connector.
3. Remove the bolts, the IAC valve and the gasket.
4. NOTE: Install a new ga ...
