fuel pressure CHEVROLET SUBURBAN 1996 Owners Manual

These symbols are on some of your controls:
I
Windshield
Wiper Windshield
Washer
Rear Wlndow Washer
I
Rear Window
Defroster
w
I
Windshield
Defroster
U
Ventilating Fan
These symbols are used on warning and indicator lights:
I -k 4cccy
Engine Coolant
Temperature
BRAKE
I Brake
I I
Battery Charging
System
ANTI-
I LOCK
I I 4 Wheel
Anti-Lock
Fuel
Parking Brake Release
I\J
Rear Window
Wiper
Engine Oil
Pressure
SHIFT
Shift Light
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NOTICE:
Don’t try to shift to PARK (P) if your vehicle is moving. If you
do, you could damage the transmission. Shift to PARK
(P) only
when your vehicle is stopped.
Turn your ignition
key to RUN.
Observe the GLOW PLUGS light. (This light may not come on if the
engine is hot.)
NOTICE:
If the GLOW PLUGS light stays on, it means that your vehicle
could have one
of several problems, so you should have it
serviced right
away.
2. As soon as the GLOW PLUGS light goes off, IMMEDIATELY turn the
ignition key to START. When the engine starts, let go of the key. (The
longer you wait to start after the light goes off, the harder it will be to
start the engine.)
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.
3. 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.
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NOTICE:
If’ you keep driving your vehicle with this light on, after a whi\
le
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\
.
Check Gages Light
This orange light will come on briefly when you are starting the engine. If
the light comes on and stays on while you are driving, it could indicate a
problem
with your vehicle. It could be a problem with your oil pressure,
coolant temperature, or some other problem. Check your various gages to
see
if they are in the warning zones. If they are, have your vehicle serviced
right away.
Daytime Running Lamps (DRL) Indicator Light
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When you want to leave the freeway, move to the proper lane well in
advance. If you miss your exit do not, under any circumstances, stop and
back up. Drive on to the next exit.
The exit ramp
can be curved, sometimes quite sharply.
The exit speed
is usually posted.
Reduce your speed according to your speedometer, not to your sense of
motion. After driving for any distance at higher speeds, you may tend
to
think you are going slower than you actually are.
Before Leaving on a Long Trip
Make sure you’re ready. Try to be well rested. If you must start when you’re
not fresh
- such as after a day’s work - don’t plan to make too many
miles that first part of the journey. Wear comfortable clothing and
shoes you
can easily drive in.
Is your vehicle ready for a long trip? If you keep it serviced and maintained,
it’s ready to go. If
it needs service, have it done before starting out. Of
course, you’ll find experienced and able service experts in
GM dealers all
across
North America. They’ll be ready and willing to help if you need it.
Here are some things you can check before
a trip:
0 Windshield Washer Fluid: Is the reservoir full? Are all windows clean
inside and outside?
Wiper Blades: Are they in good shape?
Fuel, Engine Oil, Other Fluids: Have you checked all levels?
Lamps: Are they all working? Are the lenses clean?
Tires: They are vitally important to a safe, trouble-free trip. Is the tread
good enough for long-distance driving? Are the tires all inflated to the
recommended pressure?
Should you delay your trip a short time to avoid a major
storm system?
Weather Forecasts: What’s the weather outlook along your route?
Maps: Do you have up-to-date maps?
Highway Hypnosis
Is there actually such a condition as “highway hypnosis”? Or is it just plain
falling asleep
at the wheel? Call it highway hypnosis, lack of awareness, or
whatever.
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Loading Your Vehicle
I
PSI/KPA (COLD)
~ SEE OWNER'S MANUAL FOR ADDITIONAL INFORMATION
The CertificatiodTire label is found on the rear edge of the driver's door.
The label shows the size
of your original tires and the inflation pressures
needed to obtain the gross weight capacity of your vehicle. This is called the
GVWR (Gross Vehicle Weight Rating). The GVWR includes the weight of
the vehicle, all occupants, fuel and cargo.
The Certificatiodl'ire label
also tells you the maximum weights for the
front and rear axles, called Gross Axle Weight Rating (GAWR). To find
out
the actual loads on your front and rear axles, you need to go to a weigh
station and weigh your vehicle. Your dealer can help you with this. Be sure
to spread out your load equally on both sides
of the centerline.
Never exceed the GVWR
for your vehicle, or the GAWR for either the front
or rear axle.
And, if you do have a heavy load, you should spread it out.
.Using heavier suspension components to get added durability might not
change your weight ratings. Ask your dealer to help you load your vehicle
the right way.
If your vehicle is equipped for front-end equipment (a snow plow, for
example), the front suspension may have been adjusted (raised) to level the
vehicle when the equipment was installed. If the front suspension was
adjusted, you must re-adjust the front suspension after the equipment is
removed to avoid possible front suspension damage. Adjust the front
suspension
to original design specifications for your particular model.
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h
9. Then replace the
pressure cap. Be
sure the arrows
on the pressure
cap line up like
this.
Engine Fan Noise
Your vehicle has a clutched engine cooling fan. When the clutch is engaged,
the fan spins faster to provide more air to cool the engine. In most every day
driving conditions the fan
is spinning slower and the clutch is not fully
engaged. This improves fuel economy and reduces fan noise. Under heavy
vehicle loading, trailer towing and/or high outside temperatures,
the fan
speed increases as the clutch more
fully engages. So you may hear an
increase in fan noise. This is normal and should not be mistaken as the
transmission slipping
or making extra shifts. It is merely the cooling system
functioning properly. The fan will slow down when additional cooling is not
required and the clutch partially disengages.
You may also hear this fan noise when you start the engine. It will go away
as the fan clutch partially disengages.
If a Tire Goes Flat
It’s unusual for a tire to “blow out” while you’re driving, especially if you
maintain your tires properly. If air goes out of a tire, it’s much more likely to
leak out slowly. But if you should ever have a “blowout,” here are a few tips
about what
to expect and what to do:
If a front tire fails, the flat tire will create a drag that pulls the vehicle
toward that side. Take your foot off the accelerator pedal and grip the
steering wheel firmly. Steer
to maintain lane position, then gently brake to a
stop well out of the traffic lane.
A rear blowout, particularly on a curve, acts much like a skid and may
require the same correction you’d
use in a skid. In any rear blowout, remove
your foot from
the accelerator pedal. Get the vehicle under control by
steering the way
you want the vehicle to go. It may be very bumpy and
noisy, but you can still steer. Gently brake to a stop, well
off the road if
possible.
If a tire goes flat, the next part shows how to use your jacking equipment to
change a flat tire safely.
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If this happens, a WATER IN FUEL light will come
water must be drained. Your Cfpder can show you
hc
I
WATER
IN
FUEL
If the light comes on at any other time, use this chart.
! on. If it does, the excess
3w to do this.
This light
also should
come
on briefly when
you start your engine,
as a check. If it
doesn’t, have it fixed
so it will be there to
let you know if you
ever do get water
in
your fuel.
NOTICE:
If you drive when this warning light is on, you can damage your \
fuel injection system and your engine. If the light comes on \
right
after you refuel,
it means water was pumped into your fuel tank.
Turn off your engine immediately. Then, have the water drained \
at once.
“WATER IN FUEL” LIGHT CHART Problem
Light comes on intermittently.
Light stays on:
Recommended Action
Drain water from fuel filter.
1. At temperatures above freezing. Drain fuel filter immediately. If no
water can be drained and light stays
on, see your dealer for assistance.
2. At temperatures below freezing. Drain fuel filter immediately. If no
water can be drained-water may
be frozen. Open the air bleed valve
to check for fuel pressure. If
no fuel
pressure is present, replace the fuel
filter.
3. Immediately after refueling -
large amount of water possibly
pumped into fuel tank. Fuel tank
purging required. See
your dealer for assistance.
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NOTICE:
Don’t let anyone tell you that underinflation or overinflation is
all right. It’s not.
If your tires don’t have enough air
(underinflation) you can get:
Too much flexing
0 Too much heat
Tire overloading
Bad wear
Bad handling
0 Bad fuel economy.
If your tires have too much air (overinflation), you can get:
Unusual wear
Bad handling
Rough ride
Needless damage from road hazards.
When to Check
Check your tires once a month or more. Also, check the tire pressure of the
spare tire.
How to Check
Use a good quality pocket-type gage to check tire pressure. Simply looking
at the tires will not tell you the pressure, especially if you have radial tires
- which may look properly inflated even if they’re underinflated.
If your tires have valve caps, be sure
to put them back on. They help prevent
leaks by keeping
out dirt and moisture.
Tire Inspection and Rotation
Tires should be inspected every 6,000 to 8,000 miles (10 000 to 13 000 km)
for any signs
of unusual wear. If unusual wear is present, rotate your tires as
soon as possible and check wheel alignment. Also check for damaged tires
or wheels. See “When it’s Time for New Tires’’ and “Wheel Replacement”
later
in this section for more information.
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Every 60,000 Miles (100 000 km)
Crankcase Depression Regulator Valve (CDRV) Svstem Check
Engine Accessory Drive Belt Inspection
Fuel Tank, Cap and Lines Inspection
Evaporative Control System Inspection
Exhaust Gas Recirculation (EGR) System Inspection
(if equipped)
Exhaust Pressure Regulator Valve Inspection
Follow Schedule I1
onZy if none of the conditions from Schedule I is true.
Every 5,000 Miles (8 000 km)
Engine Oil and Filter Change (or every 12 months, whichever occurs first)
Chassis Lubrication (or every
12 months, whichever occurs first)
Drive Axle Service
At 5,000 Miles (8 000 km) - Then Every 10,000 Miles (16 000 km)
Tire Rotation
Every 10,000 Miles (16 000 krn)
Shields and Underhood Insulation Inspection
Air Intake System Inspection
Thermostatically Controlled Engine Cooling Fan Check
(or every
12 months, whichever occurs first)
Every 30,000 Miles (48 000 km)
Cooling System Service (or every 24 months, whichever occurs first)
Front Wheel Bearing Repack (or at Each Brake Relining) (2-Wh\
eel Drive Only)
Fuel Filter Replacement
Air Cleaner Filter Replacement
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Maintenance Schedule II - Gasoline Engines With
Light Duty Emissions
I
(Continued)
0
0
0
Check readfront axle fluid level and add fluid as needed. Check
constant velocity joints and axle seals for leaking.:k*
For 2-Wheel Drive vehicles only: Clean and repack the front wheel
bearings
(or at each brake relining, whichever occurs first).
Inspect engine accessory drive belt.
An Emission Control Service.
Drain, flush and refill cooling system (or every 24 months, whichever
occurs first). See “Engine Coolant”
in the Index for what to use.
Inspect hoses. Clean radiator, condenser, pressure cap and neck.
Pressure test the cooling system and pressure cap.
An Enzissian Control
Service.
Replace spark plugs. An Emission Control Service.
Replace air cleaner filter. An Enzission Control Service.
Inspect fuel tank, cap and lines for damage or leaks. Inspect fuel cap
gasket for any damage. Replace parts as needed.
An Emission Control
Service.
DATE ACTUAL MILEAGE SERVICED BY
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