CHEVROLET S10 1994 2.G Owners Manual

Downloaded from www.Manualslib.com manuals search engine Engine Oil Additives
Don’t add anything to your oil. Your GM 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).
0 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.
0 The vehicle is frequently operated off-road.
If any one of these is true for your vehicle, then you need to change your oil
andfilter every 3,000 miles (5 000 km) or 3 months - whichever comes
first.
If none of them is true, change the oil every
7,500 miles (12 500 km) or 12
months - whichever comes first. Change the filter at the first oil change
and at every other oil change after that.
Four-wheel Drive Remote Oil Filter
If your vehicle has four-wheel drive, you will have a remote oil filter
located under the radiator support. There is a special access \
door in the
vehicle body skirt shield.
Engine Coolant Heater (Engine Block Heater)
An engine coolant heater can be a big help if you have to park outside in
very cold weather,
0 “F (-1 8 O C) or colder. If your vehicle has this option,
see “Engine Coolant Heater
” 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 wed engine oil. (See the manufacturer’s warnings about the use
and disposal of oil products.)
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Downloaded from www.Manualslib.com manuals search engine Used oil can De 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
To remove the round air cleaner filter for the 4.3L (VIN 2) engine, turn the
wing nuts to the left. Remove the cover and change the filter\
. Care should be
taken during reassembly to ensure that the cover is on straigh\
t and the
wingnuts properly tightened.
To remove the square air cleaner filter for the 2.2L (VnV.4) and the 4.3L
(VIN W) engines, open both clamps and push the rear of the air cleaner
back toward the rear of the engine compartment to change the filter.

Downloaded from www.Manualslib.com manuals search engine While reassembling the air cleaner assembly, ensure that the air cleaner
cover tabs
are fully inserted into the slots in the air cleaner housing and the
PCV air tube is properly seated in the left hand valve cover.
Refer to
the Maintenance Schedule to determine when to replace the air
filter.
See “Scheduled Maintenance Services”
in the Index.
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.
Automatic Transmission 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
GM 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.
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Downloaded from www.Manualslib.com manuals search engine . . . -*
I NOTICE:
Too much or too little fluid can damage your transmission. Too
much can mean that some of the fluid could come out and fall on
hot engine parts or exhaust system, starting a fire. Be sure to get
an accurate reading if you check your transmission fluid.
Wait at least 30 minutes before checking the transmission fluid\
level if you
have been driving:
When outside temperatures are above 90°F (32°C).
At high speed for quite a while.
In heavy traffic - especially in hot weather.
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 transmissionfluid hot: Get the vehicle warmed up by driving
about 15 miles (24
km) when outside temperatures are above 50°F (10OC).
If it's colder than 50°F (10" C), drive the vehicle in "D" (3rd Gear) until the
engine temperature gage moves and then remains steady for ten minutes.
Then follow the hot check procedures.
Tu 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 (10OC) or more. If it's colder than 50°F (lO"C), you may have to
idle the engine longer. Should the fluid level be low during a cold ch\
eck,
you
must perform a hot check before adding fluid. This will give you a\

more accurate reading of the fluid level.
To check the fluid hot or cold
Park your vehicle on a level place.
With the parking brake applied, place the shift lever in "P' (Park).
With your foot on the brake pedal, move the shift lever throu\
gh each
gear range, pausing
for about three seconds in each range. Then,
position the shift lever in
"P' (Park).
Let the engine run at idle for three minutes or more.
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I

Downloaded from www.Manualslib.com manuals search engine 3. Check both sides of the dipstick, and read the lower level. The fluid
level must be in the
COLD area for a cold check or in the HOT area or
cross-hatched area for
a hot check.
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Downloaded from www.Manualslib.com manuals search engine 4. If the fluid level
is in the
acceptable range,
push the dipstick
back in all the
way; then flip the
handle down to
lock the dipstick
in place.
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 to 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@-I11 or DEXRON@-IIE,
because fluids with that label are made especially for your automatic
transmission. Damage caused by fluid other than DEXRON@-I11 or
DEXR0N’-IIE is not covered by your new vehicle warranty.
0 After adding fluid, recheck the fluid level as described under “How to
Check.”
0 When the correct fluid level is obtained, push the dipstick ba\
ck in all
the way; then flip the handle down to lock the dipstick in place.
Manual Transmission Fluid
When to Check
A good time to have it checked is when the engine oil is changed. However,
the fluid in your manual transmission
doesn’t require changing.
How to Check
Because this operation can be a little difficult, you may choose to have this
done at a
GM dealership Service Department.
If you do it yourself, be sure to follow all the instructions\
here, or you could get a false reading.
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Downloaded from www.Manualslib.com manuals search engine NOTICE:
Too much or too little fluid cm damage your transmission. Too
much can mean that some of the’fluid could come out and fall on
hot engine parts or exhaust systm, starting a fire. Be sure to get
an accurate reading
if you check your transmission fluid.
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.
Then, follow these steps:
1. Remove the filler plug.
2. Check that the lubricant level is up to the bottom of the filler plug hole.
3. If the fluid level is good, install the plug and be sure it is fully seated. If
the fluid level is low, add more fluid as described in the next steps.
How to Add Fluid
Here’s how to add fluid. Refer to the Maintenance Schedule \
to determine
what
kind of fluid to use. See “Recommended Fluids and Lubricants” in the
Index.
1. Remove the filler plug.
2. Add fluid’at the filler plug hole. Add only enough fluid to bring the
fluid level up to the bottom
of the filler plug hole.
3. Install the filler plug. Be sure the plug is fully seated.

Downloaded from www.Manualslib.com manuals search engine Hydraulic Clutch
The hydraulic clutch in your vehicle is self-adjusting. A slight amount of
play
(1/4 inch to 1/2 inch) in the pedal is normal.
When to Check and What to Use
Refer to the Maintenance Schedule to determine how often you should
check the fluid level in your clutch master cylinder reservoir and what to
add. See “Owner Checks and Services” and “Recommended F\
luids and
Lubricants” in the Index.
How to check
The proper fluid should be added if the level does not reach the bottom of
the diaphragm when it’s in place in the reservoir. See the \
instructions on the
reservoir cap.
Rear Axle
When to Check and Change Lubricant
Refer to the Maintenance Schedule to determine how often to ch\
eck the
lubricant and when to change it. See “Scheduled Maintenance Services” in
the Index.
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Downloaded from www.Manualslib.com manuals search engine How to Check Lubricant
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.
What to Use
Refer to the Maintenance Schedule to determine what kind of lubricant to
use. See “Recommended Fluids and Lubricants” in the Index.
Four- Wheel Drive
Most lubricant checks in this section also apply to four-wheel-drive
vehicles. However, they have two additional systems that need l\
ubrication.
Transfer Case
When to Check Lubricant
Refer to the Maintenance Schedule to determine how often to ch\
eck the lubricant. See “Periodic Maintenance Inspections” in the Index.
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Downloaded from www.Manualslib.com manuals search engine How to Check Lubricant
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I
Refer to the Maintenance Schedule to determine how often to check the
lubricant and when to change
it. See “Scheduled Maintenance Services” in
the Index.
How to Check Lubricant
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.
The arrow on the left shows the drain plug location. The arrow
on the right
shows the filler plug location.
What to Use
Refer to the Maintenance Schedule to determine what kind of lubricant to
use. See “Recommended Fluids and Lubricants” in the Index.
Front Axle
When to Check and Change Lubricant
If the level is below
the bottom of the filler
plug hole, you’ll need to add some lubricant.