Engine Fan Noise
Your vehicle has a clutched engine cooling fan. When
the clutch is engaged, the fan spins faster to provide
more air
to
cool the engine. In most every day driving
conditions, the fan is spinning slower and the clutch
is
not fully engaged. This improves
fuel
economy and
reduces fan noise. Under heavy vehicle loading, trailer
towing and/or high outside temperatures, the fan speed
increases as the clutch more fully engages.
So
you may
hear an increase in
fan
noise. This is normal and should
not be mistaken as the transmission slipping or making
extra shifts. It is merely the cooling system functioning
properly. The fan will slow down when additional
cooling is not required and the clutch disengages.
You
may also hear this fan noise when you start
the engine. It will go away as the fan clutch
partially disengages.
If
a Tire Goes
Flat
It’s unusual for a tire to “blow out” while you’re driving,
especially if you maintain your tires properly. If air goes
out
of
a
tire, it’s much more likely to leak out slowly.
But if you should ever have a “blowout,” here are a few
tips about what
to
expect and what to
do:
If a front tire fails, the flat tire will create a drag that
pulls the vehicle toward that side. Take your foot off the
accelerator pedal and grip the steering wheel firmly.
Steer to maintain lane position, and then gently brake
to
a stop well out
of
the traffic lane.
A
rear blowout, particularly
on
a curve, acts much like a
skid and may require the same correction you’d
use
in a
skid. In any rear blowout, remove your foot from the
accelerator pedal. Get the vehicle under control by
steering the way
you
want the vehicle to
go.
It may be
very bumpy and noisy, but
you
can still steer. Gently
brake
to
a stop
--
well off the road if possible.
If
a tire goes flat, the next part shows how
to
use your
jacking equipment to change a flat tire safely.
5-19
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