1994 CHEVROLET SUBURBAN Owners Manual

Front Parkingnurn Signal Lights with
Sealed Beam Headlights
1. Remove the two screws at the inside edge of the parkinghurn signal
light assembly.
2. Remove the light assembly by swinging it out from the inside edge and
3. Squeeze the tab on the side of the light socket while turning the socket
sliding
it out at the outside edge.
to the left.
4. Pull the socket out of the light assembly.
5. Push in gently on the bulb, turn it to the left and remove it from the
socket.
6. Put the new bulb in the socket, gently press in on the bulb and turn it to
the right until it is tight.
right until it
locks.
7. Put the socket back into the light assembly and turn it socket to the
8. Put the parkinghrn signal light assembly back into the vehicle and
tighten the screws.
Front Parkingnurn Signal Lights with
Composite Headlights
1. Remove the screws and take
out the
parkinghum signal light
assembly.
2. Squeeze the tab
on the side of the
light socket while
turning
the socket
to the left.
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the left and
remove it from
the socket.
5. Put the new bulb in the socket, gently press in on the bulb and turn it to
6. Put the socket back into the light assembly and turn it socket to the
7. Put the parking/turn signal light assembly back into the vehicle and
the right until
it is tight.
right until it locks.
tighten the screws.
Side Marker Lights with Sealed Beam
and Composite Headlights
1. Remove the screws and pull
out the
parking/tum signal light
assembly.
2. Reach through the opening and
turn the side
marker bulb socket to the left
and remove it.
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3. Pull the bulb straight out
of the
socket.
4. Put a new bulb
into the socket
and push it in
until it is tight.
5. Put the socket back into the side marker assembly and turn it to the
right to tighten it.
6. Replace the parking/turn signal light assembly and tighten the screws.
Roof Marker Lights
1. Remove the
screws and lift
off
the lens.
2. Pull the bulb
straight out
of the
socket.
3. Put a new bulb into the socket and push it in until it is tight.
4. Replace the lens and tighten the screws.
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Center High Mount Stop/amp (CHMSL)
“,Gar-& ... “B 3 The individual bulbs
in the
CHMSL are not
replaceable. See your
dealer for assistance.
Rear Lights
1. Open the tailgate or rear doors.
2. Remove the two black plastic plugs in the rear light
holes.
I 3.
assembly access
Remove the two
rear light
assembly screws
inside the fender
and pull out the
light assembly. You may want to
use a magnetic
screwdriver when
removing the
screws.
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4. Remove the
screws from the
bulb retainer and
take the bulb
retainer
off of the
light assembly.
5. Pull the old bulb
straight out
of the
socket.
6. Put in a new bulb and push it in until it is tight.
7. Replace the bulb retainer.
8. Replace the rear light assembly and tighten the screws. You may want
to use
a magnetic screwdriver when installing the screws.
9. Close the tailgate or rear doors.
Fuses and Circuit Breakers
The wiring circuits in your vehicle are protected from short circuits by a
combination
of fuses, circuit breakers, and fusible thermal links in the
wiring itself. This greatly reduces the chance of fires caused by electrical
problems. See “Fuses and Circuit Breakers” in the Index for more
information.
The headlight wiring is protected by
a circuit breaker in the light switch. An
electrical overload
will cause the lights to flicker on and off, or in some
cases to remain off.
If this happens, have your headlight wiring checked
right away.
Windshield Wipers
The windshield wiper motor is protected by a circuit breaker and a fuse. If
the motor overheats due to heavy snow, etc., the wiper will stop until the
motor cools. Although
the circuit is protected from electrical overload,
overload due to heavy snow, etc., may cause wiper linkage damage. Always
clear ice and heavy snow from the windshield before using the windshield
wipers.
If the overload is caused by some electrical problem and not snow,
etc., be sure to get it fixed.
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Power Windows and Other Power Options
Circuit breakers in the fuse panel protect the power windows and other
power accessories. When the current load is too heavy, the circuit breaker
opens and closes. This protects the circuit until the current load returns to
normal or the problem is fixed
.
Trailer Wiring Harness
The optional seven-wire trailer wiring harness is protected by an in-line
fuse in the battery feed wire. This fuse is near the junction block. See
“Trailer Wiring Harness” in the Index for more information.
Fuse Block
The fuse block is
behind an access door
at the bottom
of the
instrument panel, next
to the parking brake
release lever.
You can remove fuses
with a fuse extractor,
if you have one.
To remove fuses if you don’t have one, hold the end of the fuse between
your thumb and index finger and pull straight out.
Be sure to use the correct fuse. If
you ever have a problem on the road and
don’t have a spare fuse, you can “borrow” one of the correct value. Just pick
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some feature of your vehicle that you can get along without-like the radio
or cigarette lighter-and use its fuse, if it is of the value you need. Replace
it as soon as you can. See “Fuses and Circuit Breakers’’ in the Index
for
more information.
Exhaust System
To help prevent damage to your exhaust system, do not continue to drive
your vehicle if you notice:
Engine misfiring
Loss of performance
Other unusual operating conditions
Have your engine and exhaust system serviced regularly.
Three- Way Catalytic Converter (gas engines)
Your vehicle’s three-way catalytic converter is designed to reduce the
pollutants in your vehicle’s exhaust. Use only unleaded fuel in your vehicle.
If you use leaded fuel, you could damage your three-way catalytic converter
and other engine components.
Three- Way Catalytic Converter (diesel engines)
Your vehicle’s three-way catalytic converter is designed to reduce the
particulates in your vehicle’s exhaust. If your vehicle’s three-way catalytic
converter ever needs to be replaced, it must be replaced with a three-way
catalytic converter intended for use with diesel engines only.
Engine Contro/ Module System (All T61 equipped
vehicles and diesel engine vehicles below
8,500 lbs. GVWR)
Gasoline Engines
This system has an oxygen sensor (02) that helps keep your engine’s
air-fuel mixture at a proper level. Use only unleaded fuel in your vehicle. If
you use leaded fuel, you could damage your oxygen sensor
(02) and
three-way catalytic converter.
Diesel Vehicles Below S,5UU LBS. GVWR
This system monitors engine speed and throttle position. It adjusts exhaust
gas recirculation to limit emissions.
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Malfunction Indicator
(SERVICE ENGINE SOON) Lamp
The Malfunction Indicator (SERVICE ENGINE SOON) Lamp on your
instrument panel lets you know when your emission system needs service.
The light
will come on briefly when you start your engine to let you know
that the system is working.
If it does not come on when you start your
engine,
or if it comes on and stays on while you're driving, your system
may need service. Your vehicle should still be driveable, but
you should
have your system serviced right away.
Secondary Air Injection Reaction (AIR) System
You may have this system. It has a control valve that will direct air to where
it is needed. If the AIR system needs service, your Malfunction Indicator
(SERVICE ENGINE SOON) Lamp on your instrument panel will come
on.
Loading Your Vehicle
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SEE OWNERS 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 Certificatioflire 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.
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