check engine CHEVROLET S10 1994 2.G Owner's Guide

Downloaded from www.Manualslib.com manuals search engine Engine Oil
It’s a good idea to check your engine oil every time you get fuel. In order to
get an accurate reading, the oil must be warm
and the vehicle must be on
level ground.
Turn
off the engine
and give the oil a
few
rninutes to drain back
into the
oil pan. If you
don’t, the oil dipstick
might not show the
actual level.
To Check Engine Oil
Pull out the dipstick and clean it with a paper towel or cloth, then push it
back in all the way. Remove it again, keeping the tip lower.
When to Add Oil
If the oil is at or below the ADD line, then you’ll need to add some oil. But
you must use the right kind.
This section explains what kind of oil to use.
For crankcase capacity, see “Capacities and Specifications” in the Index.
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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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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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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.

Downloaded from www.Manualslib.com manuals search engine I NOTICE:
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.
Some conditions, such as air trapped in the cooling system, ca\
n affect the
coolant level in the radiator. Check the coolant level when th\
e engine
is cold
and foilow the steps under “Adding Coolant” for the proper way to add
coolant.
If you have to add coolant more than four times a year, have your dealer
check your cooling system.
I NOTICE:
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.
Adding Coolant
To Check 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 up to
“FULL HOT,”
or a little higher.
To Add Coolant
I
If you need more
coolant, add the
proper
mix at the
coolant recovery tank.
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