fuel CHEVROLET SUBURBAN 1994 Owners Manual

These symbols are on some of your controls:
I I Windshield Wiper
rl
i Rear Window
Washer Windshield
Washer Windshield
Defroster
1
3c
Rear
Window
Defogger Ventilating Fan
These symbols are used on
warning and indicator lights:
Engine Coolant
Temperature
BRAKE
I Brake
I p3
Baftery Charging
System
Fuel
ANTI-
I LOCK
I 4 Wheel
Anti-Lock
I RELEASE
Parking Brake Release
I\J
Rear Window Wiper
Hatch
Release
I
Engine Oil
Pressure
I SHIFT
1 Shift Light
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If your engine is already hot and then stalls, turn your ignition key to OFF.
Then turn your key to RUN and wait 20 seconds before you restart your
engine. When the engine starts, let
go of the key and the accelerator pedal.
NOTICE:
Your engine is designed to work with the electronics in your
vehicle. If you add electrical parts or accessories, you could
change the way the fuel injection system operates. Before adding
electrical equipment, check with your dealer.
If you don’t, your
engine might not perform properly.
If you ever have to have your vehicle towed, see the part of this
manual that tells how to do it without damaging your vehicle.
See “Towing Your Vehicle” in the Index.
Driving Through Deep Standing Water
NOTICE:
If you drive too quickly through deep puddles or standing water,
water can come in through your engine’s air intake and badly
damage your engine.
If you can’t avoid deep puddles or standing
water, drive through them very slowly.
Driving Through Water (Diesel Engines)
NOTICE:
Never drive through standing water more than 8 inches deep if
your vehicle has a diesel engine.
Also, don’t drive through any
standing water faster than
5 mph (8 km/h). If you do, water can
be drawn in through the air intake, and this can severely
damage your engine.
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3. If this light does not come on, or the instant the light goes off, turn your
ignition key to
START. When the engine starts, let go of the key.
NOTICE:
Holding your key in “Start” for longer than 15 seconds at a time
will cause your battery to be drained much sooner. And the
excessive heat can damage your starter motor.
4. If the engine does not start after 15 seconds of cranking, turn the
ignition key to
OFF. Wait one minute for the starter to cool, then try
the same steps again.
If you’re trying to start your engine after you’ve run out of fuel, follow the
steps
in “Running Out of Fuel” (see “Diesel Fuel Requirements and Fuel
System”
in the Index).
When your engine
is cold, let it run for a few minutes before you move your
vehicle. This lets oil pressure build up. Your engine
will sound louder when
it’s cold.
NOTICE:
If you’re not in an idling vehicle and the engine overheats, you
wouldn’t be there to see the coolant temperature gage. This
could damage your vehicle. Don’t let your engine run when
you’re not in your vehicle.
Cold Weather Starting (Diesel Engine)
The following tips will help you get good starting in cold weather.
Use
SAE low-30 oil when the outside temperature drops below freezing.
When the outside temperature drops below 0°F
(-I S’C), use your engine
coolant heater.
If
you park your vehicle in a garage, you shouldn’t need to use the coolant
heater
until the garage temperature goes below 0°F (-1 Sac), no matter how
cold
it is outside.
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To use the engine coolant heater, first turn off the engine. Then open the
hood, unwrap the electrical cord and plug it in. It uses normal house voltage
(1 10 volts), but:
NOTICE:
After you’ve used the coolant heater, be sure to store the \
cord in
the manner it was, to help keep it away from moving engine
parts.
If you don’t, it could be torn and damaged.
How long should you keep the coolant heater plugged in? The answer
depends
on the weather, the kind of oil you have, and some other things.
Follow this chart.
Engine Coolant Heater Usage
Viscosity/
Oil Grade
SAE
1 OW-30
SAE
15W-40
32°F to 0°F 0°F to -10°F Below -10°F
(o0C to -18°C) (-18°C to-23°C) Below
-23°C
Not
Required
Not
Required Two
Hours*
Two
Hours* Eight Hours*
or Overnight
Eight Hours* or Overnight
*The times listed are minimum times.
It will not harm either the coolant
heater or the vehicle to leave the coolant heater plugged
in longer than the
times stated.
For best results
in cold weather, use Number 1-D diesel fuel or a
“winterized” Number
2-D fuel.
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If Your Diesel Engine Won’t Start
If you’ve run out of fuel, look at “Running Out of Fuel” (see “Diesel Fuel
Requirements and Fuel System” in the Index).
If you’re not out of fuel, and your engine won’t start, do this:
Turn your ignition key to RUN. Make sure that the “GLOW PLUGS” light
is out. Then turn the ignition key to
START.
If the light doesn’t go off, wait a few seconds, then try starting your engine
again. And, see your dealer as soon as you can for a starting system check.
If the light comes on and then goes off and you know your batteries are
charged, but your engine still won’t start, your vehicle needs service.
If the light does not come
on when the engine is cold, your vehicle needs
service.
If your batteries don’t have enough charge to start your engine, see
“Battery” in the Index.
Be sure you have the right oil for your engine, and that you’ve changed the
oil at the proper times. If you use the wrong oil, your engine may be harder
to start.
If the engine starts, runs a short time, then stops, your vehicle needs service.
Engine Coolant Heater (Engine Block Heater)
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In very cold weather, 0°F (- 1 8 “C) or colder, the engine coolant heater can
help. You’ll get easier starting and better fuel economy during engine
warn-up. Usually, the coolant heater should be plugged in a minimum of
four hours prior to starting your vehicle.
To use the coolant heater:
1. Turn off the engine.
2. Open the hood and unwrap the electrical cord.
3. Plug it into a normal, grounded 1 10-volt outlet.
I
I
NOTICE:
After you’ve used the coolant heater, be sure to store the \
cord as
it was before
to keep it away from moving engine parts. If you
don’t, it could be damaged.
How long should you keep the coolant heater plugged in? The answer
depends on the weather, the kind of oil
you have, and some other things.
Instead
of trying to list everything here, we ask that you contact a GM
dealer in the area where you’ll be parking your vehicle. The dealer can give
you the best advice for that particular area.
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- Going about 35 mph (56 km/h) or more, push the accelerator all
the way down.
You’ll shift down to the next gear and have more power.
@ should not be used when towing a trailer, carrying a heavy load,
driving on steep hills, or for
off road driving. Select “D” (third gear)
when operating the vehicle under any of these conditions.
D (Third Gear)
This is like @, but you never go into Overdrive. You should use when
towing a trailer, carrying a heavy load, driving on steep hills, or for
off-road driving.
2 (Second Gear)
This position gives you more power but lower fuel economy. You can
use
“2” on hills. It can help control your speed as you go down steep
mountain roads, but then you would also want to use your brakes
off
and on. If you manually select “2”, the transmission will drive in
second gear.
You may use this feature for reducing torque to the rear
wheels when you are trying to start your vehicle from
a stop on
slippery road surfaces.
1 (First Gear)
This position gives you even more power (but lower fuel economy)
than
“2.” You can use it on very steep hills, or in deep snow or mud. If
the selector lever
is put in “1,” the transmission won’t shift into first
gear until the vehicle is going slowly enough.
NOTICE:
If your rear wheels can’t rotate, don’t try to drive. This might
happen if you were stuck in very deep sand or mud or were up
against
a solid object. You could damage your transmission.
Also, if you stop when going uphill, don’t hold your vehicle there
with only the accelerator pedal. This could overheat and damage
the transmission. Use your brakes
or shift into “P” Park to hold
your vehicle in position on
a hill.
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Shift Light
If you have a manual
transmission, you may
have a
SHIFT light.
This light will show
you when to shift to
the next higher gear
for best fuel economy.
When this light comes on, you can shift to the next higher gear if weather,
road and traffic conditions let you. For the best fuel economy, accelerate
slowly and shift when the light comes on.
While you accelerate, it is normal for the light to go on and off if you
quickly change the position of the accelerator. Ignore the
SHIFT light when
you downshift.
Four-Wheel-Drive Vehicles Only: If your vehicle has four-wheel drive
and is equipped with a manual transmission, disregard the shift light when
the transfer case is in
4-LOW.
Manual Transmissions- Shift Speeds
If your speed drops below 20 mph (32 lun/h), or if the engine is not running
smoothly, you should downshift to the next lower gear. You may have to
downshift two or more gears to keep the engine running smoothly or for
good performance.
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When your headlights or parking lights are on, rotate the dial to the right of
your headlight switch up to brighten, or down to dim, your transfer case
indicator light.
2H (2-Wheel High): This setting is for driving in most street and highway
situations. Your front axle
is not engaged in two-wheel drive.
4H (&Wheel High): This setting engages your front axle to help drive your
vehicle. Use
4H when you need extra traction, such as on wet or icy roads,
or
in most off-road situations.
N (Neutral): Shift to this setting only when your vehicle needs to be towed
or when using a power take-off.
4L (4-Wheel Low): This setting also engages your front axle to give you
extra power, but should be used only for off-road driving.
You can shift from
2H to 4H or from 4H to 2H while the vehicle is moving.
Your front axle will engage faster if
you take your foot off of the accelerator
for a few seconds after you shift. In extremely cold weather
it may be
necessary to stop or slow the vehicle to shift out of
2H.
To shift into or out of 4L or N (Neutral):
Slow the vehicle to a roll, about 1-3 mph (2-5 kdh) and shift your
Shift the transfer case shift lever in one continuous motion.
transmission into neutral.
Don’t pause
in N (Neutral) as you shift the transfer case into 4L, or your
gears could clash.
Remember that driving in
4H or 4L may reduce fuel economy. Also, driving
in four-wheel drive on dry pavement could cause your tires to wear faster
and make your transfer case harder to shift.
Front Axle Locking Feature
The front axle locks and unlocks automatically when you shift the transfer
case. Some delay for the axle to lock or unlock is normal. If the outside
temperature is
very hot, or the vehicle has been used under hard driving
conditions, there may be a slight delay for the axle to unlock.
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Instrument Panel
13 1’2
1. Side Window Defogger Vents
2. Light Controls
3. Air Vents
4. Multifunction Lever
5. Tilt Lever
6. Instrument Cluster
7. Gearshift Lever
8. Audio System
9. Comfort Control System
10. Glove Box
1 1. Audio System
12. Ashtray
13. Rear Window Defogger Switch
or Rear Heater Switch
15. Dome Light Override Switch
16. Fuse Panel
17. Parking Brake Release Handle
Instrument Cluster
Your instrument cluster is designed to let you know at a glance how your
vehicle is running.
You’ll know how fast you’re going, about how much
fuel you have
and many other things you’ll need to know to drive safely and
economically.
Tachometer Cluster
If you have the tachometer cluster, it looks different but will tell you
everything the standard cluster does, with the addition of displaying your
engine’s revolutions per minute (rpm).
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