Developing an ear for car problems
1 of 2
Sound amplifier
Start with the sound amplifier attachment to locate the general area where the problem is.
2 of 2
Metal probe
Touch the scope's metal probe to the non-rotating
part of the suspect component. If it's
worn, you'll hear an unmistakable metallic
sound.
If you want to be a real car
doctor, you've got to use
the right tools. An automotive
stethoscope can be the
most effective diagnostic
tool in your toolbox. It
works just like the ones doctors
use, allowing you to
“hear inside” a mechanical
component. The stethoscope
we chose comes with two
attachments—a metal probe
and a sound amplifier (first photo). Use the amplifier to
narrow down the source of
the noise. Then switch to the
metal probe (second photo)
to locate the exact source of
the problem.
Connect the amplifier
attachment to the hose and
move it around the engine
compartment. That will narrow
your search to a smaller
area.
