1997 CHEVROLET EXPRESS jacking

Downloaded from www.Manualslib.com manuals search engine 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 everyday 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 partially 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.
5-22

Downloaded from www.Manualslib.com manuals search engine If you have a vehicle which was completed from a cab
and chassis, refer to the information from
the body
supplierhstaller.
The spare
tire is a full size tire, like the other tires on
your vehicle.
For cargo vans, and
all passenger vans except
those with the
15 passenger
seating arrangement, the
jack is secured in the rear
passenger side corner
of
the vehicle.
Remove the retaining wing bolt and
lift it off the
mounting bracket. Set the jack and jacking equipment
near the flat tire. For vans
with the 15 passenger
seating arrangement,
the jack is secured
on the rear passenger side floor of
the vehicle.
Remove
the retaining wing bolt and lift it out of the
mounting bracket. Set the jack and jacking equipment
near the flat tire.

Downloaded from www.Manualslib.com manuals search engine I NOTICE:
To help avoid vehicle damage, do not drive
vehicle before the cable is restored.
A
E
Jacking Tool Storage
A. Socket
B. Jack Handle
C. Ratchet
D. Jacking Tool Storage Box
E. Jack Handle Extension

Downloaded from www.Manualslib.com manuals search engine I
10. Tighten the nuts firmly in
a criss-cross
sequence
as shown.
(f3, e
Rotate the wheel
wrench clockwise.
A CA "TION:
I
Incorrect wheel nuts or improperly tightened
wheel nuts can cause the wheel to become loose
and even come
off. This could lead to an accident.
Be sure to use the correct wheel nuts.
If you have
to replace them, be sure to get new
GM original
equipment wheel nuts.
Stop somewhere as soon as you can and have the
nuts tightened with
a torque wrench to 140 Ib-ft
(190 N*m).
NOTICE:
Improperly tightened wheel nuts can lead to
brake pulsation and rotor damage.
To avoid
expensive brake repairs, evenly tighten the wheel
nuts in the proper sequence and to the proper
torque specification.
Put the wheel cover back on, if you have one.
Remove
any wheel blocks.
Remember that the jack, jacking equipment and tire
must be properly stored in their original storage
position before you begin driving again. The next
part will show you how.
5-34

Downloaded from www.Manualslib.com manuals search engine 5. Put the flat end of the extension on an angle through
the hole in the rear door frame, above the bumper.
Turn the ratchet clockwise until the tire is against the
underside
of the vehicle.
You will hear two “clicks” when the tire is up all the
way. Try to move the tire with your hands to make
sure
it is securely in place.
Return the jacking equipment to the proper location.
Secure the items and replace the jack cover.
If You’re Stuck: In Sand, Mud,
Ice or Snow
What you don’t want to do when your vehicle is stuck is
to spin your wheels too fast. The method known as
“rocking” can help you get out when you’re stuck, but
you
must use caution.
I
A CAUTION:
If you let your tires spin at high speed, they can
explode, and you or others could be injured. And,
the transmission
or other parts of the vehicle can
overheat. That could cause an engine
compartment fire or other damage. When you’re
stuck, spin the wheels
as little as possible. Don’t
spin the wheels above
35 mph (55 kmk) as shown
on the speedometer.