1999 CHEVROLET C/K clock

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5-16 How to Add Coolant to the Radiator
1. You can remove the radiator pressure cap when the
cooling system, including the radiator pressure cap
and upper radiator hose, is no longer hot. Turn the
pressure cap slowly counterclockwise 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 pressure cap, but now push
down as you turn it. Remove the pressure cap.

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5-21 Removing the Spare Tire and Tools
2 and 4-Door Models
Extended Cab Models
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. Remove the jacking equipment.
If you have a chassis cab, refer to the information
from the body supplier/installer for the location of your
spare tire.
You'll use the jack handle and the ratchet to remove an
underbody
-mounted spare tire.

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5-24
With the UP marking on the ratchet facing you, rotate
the ratchet clockwise. That will lift the jack head a little.
If your vehicle has
wheel nut caps, use the
wheel wrench and ratchet
to remove them.
Turn the wheel wrench
counterclockwise,
with DOWN facing you,
to remove the
wheel nut caps.
Then take off the hub cap.
If the wheel also has a trim ring, use the wheel wrench
to pry along the edge and remove it.
If the wheel has a smooth center piece, place the wheel
wrench in the slot on the wheel and gently pry out.

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5-25 Removing the Flat Tire and Installing
the Spare Tire
1. Use the ratchet and
wheel wrench to loosen
all the wheel nuts.
Turn the wheel wrench
counterclockwise,
with DOWN facing
you, to loosen the wheel
nuts. Don't remove the
wheel nuts yet.
2. Position the jack under the vehicle. If the flat tire is
on the front of the vehicle, position the jack on the
frame behind the flat tire. If the flat tire is on the
rear, position the jack on the rear axle between the
spring and the shock absorber.
CAUTION:
Getting under a vehicle when it is jacked up is
dangerous. If the vehicle slips off the jack, you
could be badly injured or killed. Never get under
a vehicle when it is supported only by a jack.
CAUTION:
Raising your vehicle with the jack improperly
positioned can damage the vehicle and even make
the vehicle fall. To help avoid personal injury and
vehicle damage, be sure to fit the jack lift head
into the proper location before raising the vehicle.

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5-26
Front Position Rear Position
3. With UP on the ratchet facing you, raise the vehicle
by rotating the ratchet and wheel wrench clockwise.
Raise the vehicle far enough off the ground so there
is enough room for the spare tire to fit.
4. Remove all the wheel
nuts and take off the
flat tire.
5. Remove any rust or dirt
from the wheel bolts,
mounting surfaces and
spare wheel.

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5-28
Front Position Rear Position
7. Lower the vehicle by rotating the ratchet and wheel
wrench counterclockwise. Lower the jack completely.
8. Tighten the nuts
firmly in a crisscross
sequence as shown
by rotating the wheel
wrench clockwise.
CAUTION:
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 the
proper torque. See ªCapacities and
Specificationsº in the Index.

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6-6
The fuel cap is located on the driver's side of
your vehicle.
Refuel the front tank first on a chassis
-cab model,
or in instances when only a partial fuel fill is desired.
An automatic transfer mechanism will maintain
approximately equal fuel levels in both tanks, so no
switching is required by the operator.
CAUTION:
Gasoline vapor is highly flammable. It burns
violently, and that can cause very bad injuries.
Don't smoke if you're near gasoline or refueling
your vehicle. Keep sparks, flames and smoking
materials away from gasoline.
While refueling, let the cap hang by the tether below the
fuel filler neck.
To remove the cap, turn it slowly to the
left (counterclockwise).

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6-7
CAUTION:
If you get gasoline on yourself and then
something ignites it, you could be badly burned.
Gasoline can spray out on you if you open the
fuel filler cap too quickly. This spray can happen
if your tank is nearly full, and is more likely in
hot weather. Open the fuel filler cap slowly and
wait for any ªhissº noise to stop. Then unscrew
the cap all the way.
Be careful not to spill gasoline. Clean gasoline from
painted surfaces as soon as possible. See ªCleaning the
Outside of Your Vehicleº in the Index.When you put the cap back on, turn it to the right
(clockwise) until you hear a clicking sound. Make sure
you fully install the cap. The diagnostic system can
determine if the fuel cap has been left off or improperly
installed. This would allow fuel to evaporate into the
atmosphere. See ªMalfunction Indicator Lampº in
the Index.
NOTICE:
If you need a new cap, be sure to get the right
type. Your dealer can get one for you. If you get
the wrong type, it may not fit properly. This may
cause your malfunction indicator lamp to light
and your fuel tank and emissions system may be
damaged. See ªMalfunction Indicator Lampº in
the Index.