Page 257 of 338

Downloaded from www.Manualslib.com manuals search engine Driving under these conditions causes engine oil to
break down sooner. If any one of these is
true for your
vehicle, then you need to change your oil and filter
every
5,000 miles (8 000 km) or 3 months -- whichever
occurs first. (See “Check Oil Light” in the Index.)
If none of them is true, use the long triphighway
maintenance schedule. Change the oil and filter at the
first
5,000 miles (8 000 km) or 3 months -- whichever
occurs first. Then, change the oil and filter every
10,000 miles
( 16 000 km) or 12 months -- whichever
occurs first. Driving a vehicle with
a fully warmed
engine under highway conditions causes engine oil
to break down slower. (See “Check Oil Light”
in
the Index.)
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.
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Page 259 of 338

Downloaded from www.Manualslib.com manuals search engine 4. Lift the lid, take out the air filter and remove any
loose debris that may be found laying in the air
cleaner base.
5. Install a new air filter element. See “Normal
Maintenance Replacement Parts”
in the Index.
To reinstall the air cleaner assembly, replace the air
cleaner lid, reattach the five clips, replace the air intake
tube and tighten the clamp. Return the coolant surge
tank hose
to its proper position.
Refer
to the Maintenance Schedule to determine when to
replace the air filter. See
“Scheduled Maintenance Services” in the
Maintenance Schedule booklet.
‘
A CAUTION:
Operating the engine with the air cleaner off can
cause you or others to be burned. The air cleaner
not only cleans the air, it stops flames
if the
engine backfires.
If it isn’t there, and the engine
backfires, you could be burned. Don’t drive with
it off, and be careful working on the engine with
the air cleaner off.
NOTICE:
If the air cleaner is off, a backfire can cause a
damaging engine fire. And, dirt can easily get
into your engine, which will damage
it. Always
have the air cleaner in place when you’re driving.
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Page 260 of 338
Downloaded from www.Manualslib.com manuals search engine Passenger Compartment Air
Filter Replacement
The passenger compartment air filter traps most of the
pollen from the air entering your vehicle and air
circulated inside the vehicle. Like your vehicle’s air
cleaner filter, it may need to be changed periodically.
For how often to change the passenger compartment air
filter, see your Maintenance Schedule booklet. The access panel
for the passenger compartment
air
filter is on the grille, at the base of the windshield,
on the passenger’s side.
1. Open the hood of your vehicle.
2. Lift the engine compartment rear seal (see the arrow
in the illustration) and pull it back far enough to be
able to lift open the grille flap.
3. Unhook both retaining clips that secure the filter
in place.
4. Slide the filter toward the front of the car and then
pull the filter straight out.
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Page 261 of 338

Downloaded from www.Manualslib.com manuals search engine 5. Replace the filter by sliding it back in, reattaching
6. Replace the engine compartment rear seal.
7. Close the engine hood.
For the type of filter to use, see “Normal Maintenance
Replacement Parts” in the Index. both
retainer clips and closing the grille flap.
Auto-- ’ic Transmission Fluid
It is not necessary to check the transmission fluid level.
A transmission fluid leak is the only reason for fluid
loss. If a leak occurs, take your Catera to a Catera dealership
service department and have it repaired as
soon as possible. You may also have your fluid level
checked by your dealer or service center when
you have
your
oil changed.
Change both the fluid and
filter every 50,000 miles
(83 000 km) if the vehicle is mainly driven under one
or more of
these conditions:
0 In heavy city traffic where the outside temperature
0 In hilly or mountainous terrain.
0 When doing frequent trailer towing.
0 Uses such as found in taxi, police or delivery service.
If you do not use your vehicle under any of these
conditions, the fluid and filter do not require changing.
regularly reaches
90°F (32°C) or
higher.
NOTICE:
We recommend you use only fluid labeled
DEXRON@-111, because fluid with that label is
made especially for your automatic transmission.
Damage caused by fluid other than
DEXRON-I11
is not covered by your new vehicle warranty.
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Page 262 of 338

Downloaded from www.Manualslib.com manuals search engine Rear Axle
When to Check Lubricant
Refer to the Maintenance Schedule to determine how
often to check the lubricant. See “Periodic Maintenance
Inspections” and “Scheduled Maintenance Services” in
the Maintenance Schedule booklet.
How to Check Lubricant
I
What to Use
Refer to the Maintenance Schedule to determine what
kind
of lubricant to use. See “Recommended Fluids and
Lubricants” in
the Maintenance Schedule booklet.
Engine Coolant
The cooling s stem in your vehicle is filled with new
DEX-COOL
J engine coolant. This coolant is designed
to remain in your vehicle for
5 years or 150,000 miles
(240 000 km) whichever occurs first, if you add only
DEX-COOL6 extended life coolant.
The following explains your cooling system and how
to add coolant when it is low. If
you have a problem
with engine overheating, see “Engine Overheating” in
the Index.
If the level is below the bottom of the filler plug hole,
you’ll need
to add some lubricant. Add enough lubricant
to raise the level to the bottom of the filler plug hole.
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Page 267 of 338

Downloaded from www.Manualslib.com manuals search engine Mow To Check Power Steering Fluid
When the engine compartment is cool, wipe the cap and
the top of the reservoir clean, then unscrew the cap and
wipe the dipstick with a clean rag. Replace the cap and
completely tighten it. Then remove the cap again and
look at the fluid level on the dipstick.
The level should be at the full mark. There are two lines
on the dipstick. The top line is the “full” mark and the
bottom
line is the “add” line (which means that fluid
should be added). If necessary, add only enough fluid
to bring the level up to the
full mark.
What to Use
To determine what kind of fluid to use, see
“Recommended Fluids and Lubricants” in the
Maintenance Schedule booklet. Always use the
proper fluid. Failure to use the proper fluid can
cause leaks and damage hoses and seals.
Windshield Washer Fluid
What to Use
When you need windshield washer fluid, be sure to read
the manufacturer’s instructions before use. If you will be
operating your vehicle
in an area where the temperature
may fall below freezing, use a fluid that has sufficient
protection against freezing.
Adding Washer Fluid
The windshield washer
fluid reservoir is located
behind the front grille
on the driver’s side
of
the engine.
Open the cap with the washer symbol on it. Add washer
fluid until
the tank is full.
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Page 271 of 338

Downloaded from www.Manualslib.com manuals search engine Some driving conditions or climates may cause a
brake squeal when the brakes are first applied or
lightly applied. This does not mean something is
wrong with your brakes.
Properly torqued wheel bolts are necessary to help
prevent brake pulsation. When tires are rotated,
inspect brake pads for wear and evenly torque wheel
bolts in the proper sequence
to GM specifications.
Brake linings should always be replaced as complete
axle sets.
See “Brake System Inspection’’ in Section
7 of the
Maintenance Schedule booklet under Part
C “Periodic
Maintenance Inspections.”
Brake Pedal Travel
See your dealer if the brake pedal does not return to
normal height, or if there is a rapid increase in pedal
travel. This could be a sign
of brake trouble.
Brake Adjustment
Every time you apply the brakes, with or without the
vehicle moving, your brakes adjust for wear.
Replacing Brake System Parts
The braking system on a modem vehicle is complex.
Its many parts have to be
of top quality and work well
together
if the vehicle is to have really good braking.
Your vehicle was designed and tested with top-quality
GM brake parts. When you replace parts of your braking
system
-- for example, when your brake linings wear
down and you have to have new ones put in
-- be sure
you get new approved GM replacement parts. If you
don’t, your brakes may no longer work properly. For
example,
if someone puts in brake linings that are wrong
for your vehicle, the balance between your front and
rear brakes can change
-- for the worse. The braking
performance you’ve come
to expect can change in many
other ways
if someone puts in the wrong replacement
brake parts.
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Page 280 of 338
Downloaded from www.Manualslib.com manuals search engine Wiper Blade Replacement
It’s a good idea to clean or replace the wiper blade
assembly on a regular basis or when worn. For proper
windshield wiper blade length and type see “Normal
Maintenance Replacement Parts” later in this section.
To replace the wiper blade assembly:
1. Position the wipers on the windshield in the “mid”
wipe position.
2. Press the tabs together and pull the wiper blade
assembly down enough to release it from the
“J”
hooked end of the wiper arm. Slide the assembly
away from the arm.
3. Replace the blade.
4. To reinstall the wiper blade assembly, slide it over
the wiper arm
to engage the “J” hooked end on the
wiper blade assembly. Pull up on the assembly to
lock it into place.
I
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