If you
happen to notice rattle or squeaks in the car, they are usually due to
vibrations set up in the vehicle. Vibrations come from any unbalanced
cyclical environment. Sources include pavement, noise (stereo), and even
the engine. The effect of vibration on parts in a vehicle manifest
themselves mainly in 2 manners.
The
first being 2 parts that are close together but not touching in a still
state, may begin to move back & forth in a vibratory state. Then the 2
parts begin to interfere & touch each other. When this happens at a high
rate of vibration, we perceive a buzzing or rattling sound.
The
second being 2 parts that are touching or laying next to each other in a
still state, may begin to move back & forth in a vibratory state. Then the
2 parts begin to rub against each other. If the parts have a high
coefficient of friction, they squeak, or scrape. Although automakers do
their best in an effort to conform to federal regulations governing
acceptable levels of noise using the most realistic methods at their
disposal, there are occasions where the real world offers environments
that cannot be duplicated. Or, people have higher standards of noise
acceptance than automakers. One material that can combat both of these
conditions is to use a deformable material with a low coefficient of
friction. One such material is felt.
All
this boils down to is that there may be squeaks or rattles in your car,
that annoy you to no end. Many of these squeattles can be fixed
relatively easily with a minimum of fuss. Etadyne Industries LLC is
happy to provide a resource for those of you trying to exorcise the
squeattles from your car, and reclaim the serene tranquil environment you
deserve. This material is black felt, 1mm thick with adhesive on one
side. Traditionally designed for and used in OEM automotive interior
applications (so it's long lasting, fire-retardant, etc).
Here is a list of rattle you
may find in a 2003+ 93. You may have these, or not. You may also have some
not listed: