1993 CHEVROLET TRACKER engine

Service & Appearance Care
This doughnut-shaped logo (symbol) is
used on most oil containers to help you
select the correct oil.
You should look for this
on the oil
container, and use
only those oils that
display the logo.
GM Goodwrench@ oil (in Canada, GM
‘
Engine Oil) meets all the requirements
for your vehicle.
Engine Oil Additives: Don’t add
anything to
your oil. Your Geo dealer is
ready to advise if you think something
should be added.
When to Change Engine Oil: See if
any
one of these is true for you:
Most trips are less than 4 miles
(6 km).
It’s below freezing outside and most
trips are less than
10 miles (16 km).
The engine is at low speed most of
the time (as in door-to-door delivery,
or
in stop-and-go traffic).
You tow a trailer often.
Most trips are through dusty places.
The vehicle is frequently operated
off-road.
If any one of these is true for your
vehicle, you
need to change your oil
and filter
every 3,000 miles (5 000 km)
or 3 months - whichever comes first.
If none of them is true, change oil and
filter every
7,500 miles (12 500 km) or
7.5 months - whichever comes first.
ProCarManuals.com

What to Do with Used Oil:
CAUTION
Used engine oil contains
D things that have caused skin
Gancer in laboratory animals.
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. 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 it by 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.
-m
Air Cleaner
Refer to your Maintenance Schedule to
determine when to replace the air filter.
See “Scheduled Maintenance Services”
in the Index.
A Operating the engine with the
L air cleaner off can cause you
or others to be burned. The air
cleaner not only cleans the air, it
stops flame 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.
233 - =
ProCarManuals.com

Service & Appearance Care
c
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.
... 234
Air Filter Replacement
To check or replace the filter, remove
the screws and lift up the cover.
Automatic Tmnsmissian Fluid
When to Check and Change:
A good time to check your automatic
transmission
fluid level is when the
engine oil is changed. Refer to the
Maintenance Schedule to determine
when to change your fluid. See
"Scheduled Maintenance Services"
in
the Index.
How to Check:
Because this operation can be a little
difficult, you may choose to have this
done at a Geo dealership Service
Department.
If you do
it yourself, be sure to follow
all the instructions here, or you could
get a false reading
on the dipstick.
ProCarManuals.com

' /vu I IL-t
Wait at least 30 minutes before checking
the transmission fluid level if you have
been driving:
When outside temperatures are above
At high speed for quite a while.
90°F (32°C).
In heavy traffic - especially in hot
While pulling a trailer.
To get
the right reading, the fluid should
be at normal operating temperature,
which is
180°F to 200°F (82°C to
93°C).
To check transmission fluid hot:
Get the vehicle warmed up by driving
about
15 miles (24 km) when outside
temperatures are above
50°F (10°C). If
it's colder than 50°F (lO°C), drive the
vehicle in
D (Third Gear) until the
engine temperature gage moves and then
remains steady for ten minutes. Then
follow the hot check procedures.
weather.
To
check transmission fluid cold:
A cold check is made after the vehicle
has been sitting for eight hours or more
with the engine
off and is used only as a
reference. Let the engine run at idle for
five minutes if outside temperatures are
50°F (10°C) or more. If it's colder than
50°F (lO°C), you may have to idle the
engine longer.
A hot check must follow
when fluid
is added during a cold check.
U
235 9
ProCarManuals.com

Service & Appearance Care
... 236
Let the engine run at idle for three
minutes or more.
To check the fluid hot or cold:
Park your vehicle on a level place.
Place the shift lever in P (Park) with
the parking brake applied.
With your foot on the brake pedal,
move the shift lever through each gear
range, pausing for about three seconds
in each range. Then, position the shift
lever in
P (Park).
Then, without shutting off the engine,
follow these steps:
1. Pull out the dipstick and wipe it with
2. Push it back in all the way, wait
a clean rag
or paper towel.
three seconds and then pull
it back
out again.
3. Check both sides of the dipstick, and
read the lower level. The fluid level
must be
in the COLD (A) area for a
cold check or in the
HOT (B) or
cross-hatched area for a hot check.
4. If the fluid level is where it should
be, push the dipstick back
in all the
way.
How to Add Fluid:
Refer to the Maintenance Schedule to
determine what kind of transmission fluid to use.
See “Recommended Fluids
and Lubricants”
in the Index.
If the fluid level is low, add only
enough of the proper fluid to bring the
level up into the COLD area for a cold
check or the
HOT area for a hot check.
It doesn’t take much fluid, generally less
than a pint. Don’t overfill. We
recommend you use only fluid labeled
DEXRON@-11, because fluids with that
label are made especially for our
automatic transmission. Damage caused
by fluid other than DEXRON@-I1 is not
covered by your new vehicle warranty.
ProCarManuals.com

After adding fluid, recheck the fluid
level as described under “How to
Check.
”
obtained, push the dipstick back in all
the way.
When the correct fluid level is
Manual Transmiisioon Fluid
When to Check and Change:
A good time to have it checked is when
the engine oil is changed. Refer to the
Maintenance Schedule to find out
when
to change your transmission fluid. See
‘ ‘Scheduled Maintenance Services’ ’ in
the Index.
How to Check:
Because this operation can be a little
difficult, you may choose to have this
done at a Geo dealership Service
Department.
If you do
it yourself, be sure to follow
all the instructions here, or you could
get
a false reading.
90 much or too little fluid can
...anage your transmission.
Too
much can mean that some of the
fluid could come
out and fall on I
hot engine parts, starting a fire.
I sure to get an accurate reading if
you check your transmission fluid.
I
Check the fluid level only when your
engine is off, the vehicle is parked on a
level place and the transmission
is cool
enough
for you to rest your fingers on
the transmission case.
237 8
ProCarManuals.com

Service & Appearance Care
How to Check Lubricant:
If the level is below the bottom of the
filler plug hole, you’ll need to add some
lubricant.
If the differential is at operating
temperature (warm), add enough
lubricant to raise the level to the bottom
of the filler plug hole.
If the differential
is cold, add enough
lubricant to raise the level to
1/2 inch
(12 mm) below the filler plug hole.
What to Use:
Refer to the Maintenance Schedule to
determine what kind of lubricant to use.
See “Recommended Fluids and
Lubricants” in the Index.
Engine 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.
The proper coolant for your Geo will:
Give freezing protection down to
Give boiling protection up to 258°F
Protect against rust and corrosion.
Help keep the proper engine
Let the warning lights work as they
-34°F (-37°C).
(125°C).
temperature. should.
What to Use:
Use a mixture of one-half clean water
(preferably distilled) and one-half
antifreeze or approved recycled coolant
that meets “GM Specification 6038M,”
which won’t damage aluminum parts.
Also use GM Engine Coolant
Supplement (sealer) with a complete
coolant change. If you use these, you
don’t need to add anything else.
ProCarManuals.com

r
Adding only plain water to
b your cooling system can be
dmgemus. Plaia 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 a proper
antifreeve or approved recycled
coolant.
I
Some conditions, such as air trapped in
the cooling system, can affect the
coolant level in the radiator. Check the
coolant level when the engine is cold
and follow the steps under ‘‘Adding Coolant” for
the proper way to add
coolant. If you have to add coolant
more than
four time
a year, have your dealer check
your cooling system.
If
you use the proper coolant, you
don’t have to add extra inhibitors
or additivies which claim to
II
241
ProCarManuals.com