Page 240 of 375

Downloaded from www.Manualslib.com manuals search engine Remote Oil Filter (Four-wheel Drive)
The access door for the remote oil filter is in the steering
linkage shield assembly located under the radiator
support. Twist the screw to unlock or lock the door.
What to Do with Used Oil
Did you know that used engine oil contains certain
elements that may be unhealthy for your skin and could
even cause cancer? Don’t let used oil stay
on your skin
for very long. Clean your skin and nails with soap and
water, or a good hand cleaner. Wash or properly throw
away clothing or rags containing used engine oil. (See
the manufacturer’s warnings about the use and disposal
of oil products.)
Used oil can be a real threat
to the environment. If you
change your own oil, be sure
to drain all free-flowing oil
from the filter before disposal. Don’t ever dispose
of oil
by putting it in the trash, pouring it on the ground, into
sewers, or into streams
or bodies of water. Instead,
recycle it by taking it to a place that collects used
oil. If
you have a problem properly disposing
of your used oil,
ask your dealer, a service station or a local recycling
center for help.
Air Cleaner
“VORTEC” 4300 Engine
To remove this air cleaner, remove the wing nuts that
hold the cover
on. Remove the cover and lift out the
air filter.
Insert a new air filter, then replace the air cleaner cover.
Tighten the wing nuts to hold the cover
in place.
6-14
Page 251 of 375

Downloaded from www.Manualslib.com manuals search engine A 50/50 mixture of water and the proper coolant for
your vehicle will:
Give freezing protection down to -34°F (-37°C).
Give boiling protection up to 265 “F ( 129°C).
Protect against rust and corrosion.
Help keep the proper engine temperature.
0 Let the warning lights and gages work as
they should.
NOTICE:
~~ ~~~~ ~ ~~
When adding coolant it is important that you use
DEX-COOL (orange-colored, silicate-free)
coolant meeting GM Specification 6277M.
If silicated coolant is added to the system,
premature engine, heater core or radiator
corrosion may result. In addition, the engine
coolant
will require change sooner -- at
30,000 miles (50 000 km) or 24 months,
whichever occurs first. What to
Use
Use a mixture of one-half
clean water (preferably
distilled) and one-half DEX-COOL (orange-colored,
silicate-free) antifreeze that meets GM Specification
6277M’ which won’t damage aluminum parts. Use
GM Engine Coolant Supplement (sealer) (GM Part
No. 3634621) with any complete coolant change. If you
use this mixture, you don’t need to add anything else.
Adding only plain water to your cooling system
can be dangerous. Plain water, or some other
liquid like alcohol, can boil before the proper
coolant mix will. Your vehicle’s coolant warning
system is set for the proper coolant mix. With
plain water or the wrong mix, your engine could
get too hot but you wouldn’t get the overheat
warning. Your engine could catch fire and you or
others could be burned. Use
a 50/50 mix of clean
water and
DEX-COOL (orange-colored,
silicate-free) antifreeze.
6-25
Page 252 of 375
Downloaded from www.Manualslib.com manuals search engine NOTICE:
r
If you use an improper coolant mix, your engine
could overheat and be badly damaged. The
repair
cost wouldn’t be covered by your
warranty.
Too much water in the mix can freeze
and crack the engine, radiator, heater core and
other parts.
If you have to add coolant more than four times a year,
have your dealer check your cooling system.
I NOTICE: I
If you use the proper coolant, you don’t have to
add extra inhibitors or additives which claim to
improve the system. These can be harmful.
Checking Coolant
When your engine is cold, the coolant level should be at
ADD, or a little higher. When your engine is warm, the
level should be
LID to FULL HOT, or a little higher.
6-26
Page 253 of 375
Downloaded from www.Manualslib.com manuals search engine Adding Coolant
If you need more coolant, add the proper mix at the
coolant recovery tank.
1 A CAUTION:
Add coolant mix at the recovery tank, but be careful not
to spill
it.
Tbrning the radiator pressure cap when the
engine and radiator are hot can allow steam and
scalding liquids to blow out and burn you badly.
With the coolant recovery tank, you will almost
never have to add coolant at the radiator.
Never turn the radiator pressure cap
-- even a
little
-- when the engine and radiator are hot.
A CAUTION:
+-
You can be burned if you spill coolant on hot
engine parts. Coolant contains ethylene glycol,
and
it will burn if the engine parts are hot
enough. Don’t spill coolant on a hot engine.
6-27
Page 254 of 375
Downloaded from www.Manualslib.com manuals search engine Radiator Pressure Cap
NOTICE: - ~ I
Your radiator cap is a 15 psi (105 kPa)
pressure-type cap and must be tightly installed to
prevent coolant
loss and possible engine damage
from overheating. Be sure the arrows on the cap
line up with the overflow tube on the radiator
filler neck.
Thermostat
Engine coolant temperature is controlled by a thermostat
in the engine coolant system. The thermostat stops the
flow of coolant through the radiator until the coolant
reaches a preset temperature.
6-28
Page 256 of 375
Downloaded from www.Manualslib.com manuals search engine Adding Washer Fluid
Open the cap labeled WASHER FLUID ONLY. Add
washer fluid until the tank is full.
NOTICE:
0
0
0
0
When using concentrated washer fluid,
follow the manufacturer’s instructions for
adding water.
Don’t mix water with ready-to-use washer
fluid. Water can cause the solution to freeze and damage your washer fluid tank and
other parts of the washer system. Also,
water doesn’t clean
as well as washer fluid.
Fill your washer fluid tank only
3/4 full
when it’s very cold. This allows for
expansion, which could damage the tank if
it is completely full.
Don’t use radiator antifreeze in your
windshield washer.
It can damage your
washer system and paint.
6-30
Page 263 of 375
Downloaded from www.Manualslib.com manuals search engine Composite Headlamps
1. Open the hood.
2. Remove the black
protective caps from the
removal pins at the top
of the radiator support.
Use a hex socket to
unscrew the pins.
3. Pull the headlamp lens
I
assembly out. (Some
vehicles may have
4. Unplug the electrical connector.
6-37
Page 265 of 375
Downloaded from www.Manualslib.com manuals search engine Front Sidemarker Lamps
1.
2.
3.
4.
5.
6.
7.
8.
9.
Remove the lens retaining screws.
Remove the sidemarker lens from the radiator grille.
Turn the bulb and socket one-quarter turn counterclockwise.
Remove the bulb and socket from the lens. Install the new bulb and socket to the sidemarker
lens.
Rotate the bulb and socket one-quarter turn
clockwise.
Install the sidemarker lens to the radiator grille.
Insert the tabs into the locators.
Install and tighten the screws.
Center High-Mounted Stoplamp
1. Remove the lens retaining screws.
2. Remove the lens.
6-39