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Engine Fan Noise
If a Tire Goes Flat
This 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 everyday driving
conditions, the clutch is not engaged. This improves
fuel economy and reduces fan noise. Under heavy
vehicle loading, trailer towing and/or high outside
temperatures, the fan speed increases when the clutch
engages. So you may hear an increase i n 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 h e
engine.
It will
go away as the fan clutch disengages.
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 muc11 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 ~naintain 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. I n any rear blowout, remove y o ~ ~ r
foot from the
accelerator pedal. Get the c.ehicle under control by
steering the
way
~ O L I
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.
5-22
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