1994 CHEVROLET SUBURBAN Owners Manual

Turn the pressure cap slowly to the left until it first stops. (Don't press
down while turning the pressure
cap.)
If you hear a hiss, wait for that to stop. A hiss means there is still some
pressure left.
2. Then keep
turning the
cap,
but now push
down as you turn
it. Remove the
pressure
cap.
3. Open the air
bleed valve
located on the
thermostat
housing.
4. Fill the coolant surge tank with
the proper mix,
up to the
COLD
mark.
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While filling the surge tank, watch to see if coolant begins to stream out
the air bleed valve. When coolant begins to stream out, close the valve.
5. With the air bleed
valve closed and
the coolant surge
tank pressure cap
off, start the
engine and let
it
run until you can
feel
the upper
radiator hose
getting hot.
Watch out for the
engine fan(
s).
6. By this time, the coolant level inside the coolant surge tank may be
lower.
If the level is lower, add more of the proper mix to the coolant
surge tank until the level reaches the
COLD mark.
7. Then replace the
pressure cap.
Be
sure the arrows
on the pressure
cap line up like
this.
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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 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 section 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.
The following
steps
will tell you how to
use the jack and
change
a tire.
The equipment you’ll need is located
in the rear cargo area. You’ll also find
your spare tire there.
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Spare Tire
Your spare tire is
mounted on the driver
side inside cargo area
wall, at the rear
of the
vehicle
First open the tire cover, if you have one. Turn the wing nut to the left and
take it, and the adapter, off the bolt. Take the tire out of the vehicle and
remove the tire cover.
Jack and Tools -Utiliiy Models
I
If your utility model
has a jack cover, turn
the wing nut to the left
I to take it off, then take
the cover off.
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e
To take the jack out,
turn the wing
nut to
the left and take it and
the retainer
off. Take
the jack and storage
box
out and then take
the
tools out of the
box.
Your vehicle may have
a pair of emergency gloves secured to the jack. You
can use them when changing the tire, or during other emergency situations.
Remember to replace them
with the jack, so you will have them handy if
needed later.
Jack and Tools -Wagon Models
If your wagon model
has a jack cover,
lift
the tab up to release
the cover. Slide your
hand under the edge
of the cover, swing the
cover open
and then
take
it off.
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.... .. . . .. ...... . ... .. Your vehicle’s jack
and
jacking tools are
stored in the
compartment.
To take
the jack out,
turn the
wing nut to the left
and take it and the
retainer
off. Take the
jack and storage
box
out and then take the
tools out
of the box.
Your vehicle may have a pair
of emergency gloves secured to the jack. You
can
use them when changing the tire, or during other emergency situations.
Remember to replace them with the jack,
so you will have them handy if
needed later.
Jacking Tool Storage - All Models
1. Socket
2. Jack Handle
3. Ratchet
4. Jacking Tool Storage Box
5. Jack Handle Extension
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Jack Storage - Utility Models
-3
4
5
1. Retainer
2. Nut
3. Jack - Secure Jack in Vehicle as Shown
Jack Storage - Wagon Models
4. Jack Stbrage Box
5. Bracket.
1. Retainer
2. Nut
3. Jack - Secure Jack in Vehicle as Shown
4. Jack Storage Box
5. Bracket.
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