1995 GMC SIERRA Owners Manual

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 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, 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.
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Changing a Flat Tire
If a tire goes flat, avoid further tire and wheel damage by driving slowly to a
level place. Turn on your hazard warning flashers.
A. Flat Tire
B. Blocked Tire
The following steps will tell
you how to use the jack and change a tire.
The equipment you’ll need
is behind the passenger’s seat. Turn the wing nut
counterclockwise and remove the jack cover, if there is one.
Your spare tire
is stowed under the truck bed, at the
rear.
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Jack and Jacking Tool Storage - Two and Four Door Models
1. Nut
2. Jack
3. Jack Handle Extension
4. Wheel Wrench
5. Jack and Tool Storage Box
6. Ratchet
7. Jack Handle
8. Tool Retainer
Jack and Jacking Tool Storage - Extended Cab Models
1. Nut
2. Jack and Tool Cover
3. Jack Handle Extension
4. Tool Retainer
3
5. Jack and Tool Storage Box
6. Ratchet
7. Wheel Wrench
8. Jack
9. Jack Handle
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Jack and Jacking Tool Storage - Chassis Cab Models
a -1
Jacking Tool Storage - Chassis Cab Models
a -1
3
3
1. Nut
2. Jack Handle Extension
3. Wheel Wrench
4. Jack and Tool Storage Box
5. Ratchet
6. Jack Handle
7. Tool Retainer
8, Jack
To Remove the Spare Tire
The spare tire, if you have one, is full size like the other tires on your
vehicle.
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Spare Tire Stowage - Under-Body Carrier
I. Hoist Assembly
2. Ratchet
3. Wheel Wrench
4. Hoist Shaft
5. Valve Stem, Pointed Down
6. Spare Tire
7. Retainer
8. Hoist Cable
The spare tire is stowed under the vehicle
in an under-body carrier.
Remember. never remove or restow
a tire from an under-body carrier while
the vehicle is supported only by a
jack.
If you have a chassis cab, refer to the information from the body
supplier/installer for the location
of your spare tire.
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UP Marking DOWN Marking
One side of the ratchet has an UP marking. The other side has a DOWN
marking.
Attach the ratchet to
the wheel wrench with
the DOWN marking
facing
you.
Put the other end of the wheel wrench through the rear bumper access hole,
located at the passenger side edge of the license plate. Be sure
the wheel
wrench connects
into the hoist shaft.
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Turn the ratchet
counterclockwise to
lower- the spare tire.
Keep turning the
ratchet
until the spare
tire
can be pulled out
from under the
vehicle.
When the tire
has been lowered. till the retainer at the end of the cable and
pull it through the wheel opening.
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Changing the Tire
.
Start with the jack, the
jack handle and the
ratchet.
If
the flat tire is on the
rear of
the vehicle,
you’ll need the jack
handle extensions
also.
Attach the jack handle
(and jack handle
extension, if needed)
to the jack.
With the
Up marking
on the ratchet facing
you, rotate the ratchet
clockwise. That will
lift the jack head a
little.
Before
you start, put the spare tire near the flat tire. Remove the wheel trim
and loosen
the wheel nuts. The next part wi!l show you how to do these
things properly.
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