1995 CHEVROLET S10 engine

Downloaded from www.Manualslib.com manuals search engine Indicator Lights
Indicator lights go on when you use your turn signals, change from low
beam headlights
to high beams, or when you use your hazard flashers. The
next few pages will also tell you about the indicator lights on your vehicle
and help
you locate them.
Malfunction Indicator Lamp (SERVICE ENGINE SOON
Light)
The amber
Malfunction Indicator
Lamp (SERVICE
ENGINE SOON
Light) is located at the
top of your instrument
panel.
SERVICE
ENGINE
SOON
A computer monitors operation of your fuel, ignition and emission control
systems. This light should come
on when the ignition is on, but the engine is
not running, as a check to show you it is working. If it does not come
on at
all, have it fixed right away.
If it stays on, or it comes on while you are
driving, the computer is indicating that
you have a problem. You should
take your vehicle in for service
soon.
NOTICE:
If you keep driving your vehicle with this light on, after awhile
the emission controls won’t work as well, your fuel economy
won’t be as good and your engine may not run as smoothly. This
could lead
to costly repairs not covered by your warranty.
If Your Vehicle is Equipped with OBD I1
Certain vehicles with 4.3 liter engines are equipped with a new emission
diagnostic system. You can tell whether your vehicle has this system
by
reading your tune-up label located under the hood. If the label says “OBD
11” on it, the following instructions apply.

Downloaded from www.Manualslib.com manuals search engine Malfunction Indicator Lamp (SERVICE ENGINE SOON Light)
Your vehicle is equipped with an onboard computer which monitors
operation of the emission control system. This system is called OBD I1
(On-Board Diagnostics-Second Generation) and is intended to assure that
emissions are at acceptable levels for the life of the vehicle, helping to
produce a cleaner environment. The “SERVICE ENGINE
SOON’ light
comes on to indicate when service is required. Malfunctions often will be
indicated by
the system before any problem is apparent, which may prevent
more serious damage to your vehicle. This system is also designed to assist
your service technician in correctly diagnosing any malfunction.
The “SERVICE ENGINE
SOON, light should come on, as a check to show
you it is working, when the ignition is on and the engine is not running. This
light will also come during a malfunction in one
of two ways:
0
0
Light on steady - indicates a system malfunction has been detected.
Drive the vehicle to the dealer for service at your first opportunity.
Light flashing
- indicates a misfire has been detected which may
damage the emission control system. The damage may be reduced by
lowering the vehicle speed, reducing the amount of cargo being hauled
or trailered, avoiding hard acceleration, or by avoiding steep uphill
grades.
If these actions are effective, the light will stop flashing and
remain on steady. Drive the vehicle to a dealer for service. If the light
continues to flash, stop the vehicle. Wait for a steady light to come on,
then drive the vehicle to a dealer for service.
These following conditions also may cause the “SERVICE ENGINE
SOON” light to come on:
Low FueVOut of Fuel
- As the vehicle starts to run out of fuel the
“SERVICE ENGINE
SOON” light may come on as a result of an engine
misfire. Filling your gasoline tank should correct this condition. Make sure
to install the gas cap fully. It will require a few driving trips to turn the light
off.
Poor Quality Fuel
- Be sure to fuel your vehicle with quality fuel. Your
engine may not run efficiently on poor fuel. Poor fuel may cause stalling,
hesitation or misfire. These conditions may go away when the engine is
warned-up. However, poor quality fuel may cause the “SERVICE ENGINE
SOON, light to come on.
Have a dealer check the vehicle. If no problems are found, you may want to
change to another brand
of fuel.
Driving Through Standing Water
- Driving your vehicle through puddles
of deep standing water may result in a temporary misfire condition. This
condition will usually correct itself shortly after the electrical system dries
out. It will require a few driving trips to turn the light off.
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Downloaded from www.Manualslib.com manuals search engine Charging System lndicator Light
The red charging
system indicator light
is above your oil
temperature gage on
your instrument
cluster and will come
on briefly when you
turn
on the ignition,
but the engine is
not
running, as a check to
show you it is
working.
It should go
out once the engine is running. If it stays on, or comes on while
you are driving, you may have a problem with the charging system. It could
indicate that
you have problems with a generator drive belt, or another
electrical problem. Have it checked right away. Driving while this light is
on
could drain your battery.
If you must drive a short distance with the light on, be certain to turn off all
your accessories, such as the radio and air conditioner.
CHECK GAGES lndicator Light
CHECK
GAGES
This amber CHECK
GAGES indicator
light
is above the fuel
gage
on the instrument
cluster and will come
on briefly when you
are starting the engine.
If the light comes on and stays on while you are driving, check your coolant
temperature and engine oil pressure gages
to see if they are in the warning
zones.
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Downloaded from www.Manualslib.com manuals search engine Daytime Running Lamps (DRL) Indicator Light
This green DRL
indicator light is
above the fuel gage on
the instrument cluster.
The
DRL indicator light is on whenever the ignition is on and the headlight
switch and parking brake are off. For more details about
DRL, see “Daytime
Running
Lamps” in this section.
SHIFT Indicator Light
This amber SHIFT
indicator light is at the
top of the instrument
cluster of vehicles
with manual
transmissions.
Shifting when the
indicator light
is on
will help
you get the
best fuel economy.
See “SHIFT Light”
in
this section.
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Downloaded from www.Manualslib.com manuals search engine Headlamp High-Beam Indicator Light
A
This blue high-beam
indicator light is
above the engine oil
temperature gage
on
the instrument cluster
and is on whenever
you use your high
beam headlamps. See
“Headlamp High-Low
Beam Changer” in this section.
Turn Signal and Lane Change Indicator Light
This light with the
green arrows is
on
both sides of the
speedometer on the
instrument cluster.
The turn signal
indicator will come on
whenever
you signal a
turn or lane change.
See “Turn and Lane
Change Signal” in this
section.
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Downloaded from www.Manualslib.com manuals search engine Gages
Engine Coolant Temperature Gage
210
This gage shows the
engine coolant
temperature.
If the
gage pointer moves
into the red area, your
engine is too hot!
It means that your engine coolant has overheated.
If you have been
operating your vehicle under normal driving conditions,
you should pull off
the road, stop your vehicle and turn off the engine as soon as possible.
Hot Coolant Can Burn you Badly! In Problems On The Road, this manual
explains what to do. See “Engine Overheating” in the Index.
Oil Pressure Gage
The oil pressure gage
shows the engine oil
pressure in psi
(pounds per square
inch) when the engine
is running. Canadian
vehicles indicate
pressure
in kPa
(kilopascals).
Oil pressure may vary with engine speed, outside temperature and oil
viscosity, but readings above
the low pressure zone indicate the normal
operating range.
A reading in the low pressure zone may be caused by a aangerously low oil
level or other problems causing low oil pressure.
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Downloaded from www.Manualslib.com manuals search engine A CAUTION:
Don’t keep driving if the oil pressure is low. If you do, your
engine can become
so hot that it catches fire. You or others could
be burned. Check your oil
as soon as possible and have your
vehicle serviced.
NOTICE:
Damage to your engine from neglected oil problems can be
costly and is not covered
by your warranty.
Fuel Gage
The fuel gage tells
you about how much
fuel you have
remaining when the
ignition
is on. When
the gage first indicates
empty, you still have a
little fuel left, but you
should get more fuel
soon.
Here are four things that some owners ask about. None of these show a
problem with your fuel gage:
At the gas station, the gas pump shuts off before the gage reads full.
0 It takes a little more or less fuel to fill up than the gage indicated. For
example, the gage may have indicated the tank was half full, but it
actually took a little more or less than half the tank’s capacity to fill the
tank.
0 The gage moves a little when you turn a corner or speed up.
The gage doesn’t go back to empty when you turn off the ignition.
For your fuel tank capacity, see the Index under “Fluid Capacities.”
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Downloaded from www.Manualslib.com manuals search engine Voltmeter Gage
14
9
When your engine is
not running, but the
ignition is
on (in the
RUN position), this
gage shows your
battery’s state
of
charge in DC volts.
When the engine is running, the gage shows
the condition of the charging
system. Readings between the low and high warning zones indicate the
normal operating range.
Readings in the low warning zone may occur when a large number
of
electrical accessories are operating in the vehicle and the engine is left at an
idle
for an extended period. This condition is normal since the charging
system is not able
to provide full power at engine idle. As engine speeds are
increased, this condition should correct itself as higher engine speeds allow
the charging system to create maximum power.
You can only drive for a short time with the reading
in either warning zone.
If you must drive, turn off all unnecessary accessories.
Readings
in either warning zone indicate a possible problem in the electrical
system. Have the vehicle serviced as soon
as possible.
Center High Mounted Stop Lamp (CHMSL)
Feed Wire
Your vehicle includes a Center High Mounted Stop Lamp (CHMSL) located
above the rear window.
If equipment such as a cap or camper is installed, a wire labeled “Center
High Mounted
Stop Lamp (CHMSL)” feed is provided along the left rear
frame.
This wire should be used to install a CHMSL in the cap or camper.
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