lock CHEVROLET SUBURBAN 1994 Repair Manual

Fluid Leak Check
After the vehicle has been parked for a while, inspect the surface under the
vehicle for water, oil, fuel or other fluids. Water dripping from the air
conditioning system after it has been used is normal. If you notice fuel leaks
or fumes, the causes should be found and corrected at once.
Lubrication
Accelerator Control System
Your maintenance schedule will tell you how often the accelerator linkage
pivot points must be lubricated. See “Recommended Fluids and Lubricants”
in
the Index for the proper lubricant to use.
Accelerator cables and cruise control cables should not be lubricated. Any
cables that are worn or
are hard to pull should be replaced.
Hood Latches and Hood Hinge
Your maintenance schedule will tell you how often to lubricate the hood
latch and hood hinge assembly. See the Index under “Recommended Fluids
and Lubricants” for the proper lubricant to use.
Propeller Shaft Slip Splines
See your maintenance schedule to find out how often the slip splines must
be lubricated. See “Recommended Fluids and Lubricants” in the Index for
the proper lubricant to use.
Constant Velocity Joints
See your maintenance schedule to find out how often the constant velocity
joints must be lubricated. See “Recommended Fluids and Lubricants” in the
Index for the proper lubricant to use.
Normal
use of your vehicle will cause metal to metal wear at some points on
the cab and body if they are not lubricated.
For exposed surfaces, such
as door checks, door lock bolts, lock striker plates,
dovetail bumper wedges, etc., a thin
film of engine oil should be applied.
The seat adjusters and seat track should be lubricated
with chassis grease.
Door weather strips and rubber hood bumpers should be lightly coated with
a rubber lubricant.
Never use too much of any lubricant and be sure to wipe up any extra
lubricant when you are finished.
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Your maintenance schedule will tell you how often to lubricate these items.
See “Recommended Fluids and Lubricants” in the Index for the proper
lubricant to use.
Lock Cylinders
To be sure your locks operate properly, they must be lubricated. Your
vehicle’s maintenance schedule will tell you how often to lubricate them.
See “Recommended Fluids and Lubricants” in the Index for the proper
lubricant to use.
You should not use penetrating oils because they could wash out the factory
installed lubricant and cause the lock to bind. De-icers which contain
alcohol could
also wash away the lubricant, so be sure to lubricate the lock
after using a de-icer of this type.
Tailgate Handle
The tailgate handle pivot points on your vehicle should be lubricated to keep
it working smoothly.
Your maintenance schedule will tell you how often to lubricate the handle.
See “Recommended Fluids and Lubricants” in the Index for the proper
lubricant to use.
Battery
Every new GM vehicle has a Delco Freedom@ battery. You never have to
add water to one of these. When it’s time for a new battery, we recommend
a Delco Freedom@ battery. Get one that has the catalog number shown on
the original battery’s label.
Vehicle Storage
If you’re not going to drive your vehicle for 25 days or more, take off the
black, negative
(-) cable from the battery. This will help keep your battery
from running down.
Contact your dealer to learn how to prepare your vehicle for longer storage
periods.
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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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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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Fuse Block
1 FUSE LEGEND I
1 5 AMP I TAN 1
I 7.5 AMP I BROWN 1 I I
I 25 AMP I CLEAR 1
I 30 AMP I GREEN 1
PANEL LPS
-
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Fuses and Circuit Breakers
NAME CIRCUITS PROTECTED
Gages Turn-B/U
EMC/Ign
Inj. A
Brake
AC/Htr
Ctsy Park
LP
P. Lps
Stop/Haz.
Wiper
Radio Acc/Ign.
Acc/Batt.
Crank
4WD DRL
RR Wpr.
TIC Re1 Cruise Control,
4 WD Display
Illum. Rear Window Defogger
Timer, Aux. Batt. Relay Feed,
Safety Belt Buzzer Timer,
Cluster Ign. Feed
Back-up Lamps, Turn Signals
T.C.C., Air Diverter, E.S.C.,
E.G.R., E.C.M. Ign. R.W.A.L.
Brake Switch
Throttle Body Injectors
A.B.S. Cluster-Speed0
H.V.A.C.
4 WD, Aux. Batt.
Relay
Dome Lamp, Ctsy. and Glove
Box Lps. (TR-9), Radio
(Memory-Clock)
FUSE CIRCUIT
BREAKER
20 Amp
15 Amp
10 Amp
10 Amp
15 Amp
25 Amp
20 Amp
Horn Relay,
Horn Feed, Park 20 Amp
Lamps
C49 SW Illum., Headlamp
“On” 5 Amp
Warning, Radio Illum.,
H.V.A.C.
Illum.
Haz. Flasher, Seat Belt Buzzer,
Stop
Lmps., A.B.S. Memory
Windshield Wiper, Washer
Radio Feed Pwr. Windows
Door Locks, Rear Window
Defogger
Crank, Discreet
Four Wheel Drive
Daytime Running Lights
Rear Window Wipermasher
Cigar Lighter, Rear Hatch
Release
15 Amp
25 Amp
10 Amp
5 Amp
25 Amp
15 Amp
25 Amp
25 Amp
30 Amp
30 Amp
*An inline fuse is used for the underhood lamp
Do not use fuses of higher amperage than those recommended above.
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2 I. THERMOSTATICALLY CONTROLLED ENGINE COOLING FAN INSPECTIONAI/
- (If so equipped.) Inspect all hoses and
ducts for proper hook-up. Be sure the valve works properly.
22. EXHAUST PRESSURE REGULATOR VALVE INSPECTION” -
Check that the valve works properly, Correct any binding. Inspect
hoses for cracks, chafing or decay. Replace parts as needed.
23. TIRE AND WHEEL ROTATION AND INSPECTION - For proper
wear and maximum tire life, rotate tires at the first 6,000 miles
(10 000
kilometers) for Schedule
I (+) or 7,500 miles (12 500 kilometers) for
Schedule
I1 (0) and then every 15,000 miles (25 000 kilometers)
thereafter. Follow the instructions and patterns shown
in Section 6.
Check tires for uneven wear or damage. If irregular or premature wear is
apparent, check wheel alignment. Also, check or damaged wheels. See
“Tires”
in the Index for more information.
For dual wheels, whenever the vehicle, wheels, or fasteners are new,
have the wheel fastener torque
set at the first 100, 1,000 and 6,000 miles
( 160, 1600 and 10 000 km).
Block the tires opposite
those being removed to keep the vehicle from
rolling.
24.
DRIVE AXLE SERVICE? - Check readfront axle fluid level and
add
as needed. Check constant velocity joints and axle seals for
leaking.
0 Locking differential - Drain fluid at first oil change and refill.
Check fluid
level and add as needed at subsequent oil changes. In
dusty areas, or trailer towing applications drain fluid at every
15,000 miles (24 135 kilometers) and refill.
Standard differential - Check fluid level and add as needed at
every oil change. In dusty areas, or trailer towing applications,
drain fluid every
15,000 miles (24 135 kilometers) and refill.
0 More frequent lubrication may be required on heavy-duty or
off-road
use.
:i: An Emission Control Service
ANoise Emission Control Service
VApplicable
only to vehicles sold in the United States
+A fluid
loss in these systems may indicate a problem. Have them
inspected and repaired
at once.
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25. BRAKE SYSTEM INSPECTION? - When the engine oil is
changed, inspect the
lines and hoses for proper hookup, binding, leaks,
cracks, chafing, etc. Check
the parking brake adjust, and the fluid level
in the master cylinder.
A low fluid level can indicate worn disc brake
pads which may need to be serviced.
When the wheels are removed for rotation, inspect disc brake pads for
wear and rotors for surface condition. Also inspect drum brake linings
for wear and cracks. Inspect other brake parts, including drums, wheel
cylinders, parking brake, etc., at
the same time. Remove any rust or dirt
from the wheel and mounting surfaces before mounting
the wheel.
Inspect brakes more often if driving habits or conditions resul\
t in
frequent braking.
Owner Checks and Services
Listed below are owner checks and services which should be made at the
time period specified to help ensure proper safety, emission performance,
and dependability of your vehicle.
Be
sure any necessary repairs are completed at once. Whenever any fluids
or lubricants
are added to your vehicle, make sure they are the proper ones,
as shown in this Section.
At Least Once a Month
Tire inflation pressure check - Check the tires for proper inflation. If
they are low, inflate them to the level specified on the Certificatiomire
label or on the tire inflation charts. See “Loading Your Vehicle” or
“Inflation-Tire Pressure”
in the Index.
At Least Once a Year
Key lock cylinder lubrication - Lubricate key lock cylinders with engine
oil. See the “Recommended Fluid and Lubricants” chart
in this section.
Transmission neutral or clutch start switch operation -
?A fluid loss in these systems may indicate a problem. Have them inspected
and repaired at once.
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I. Before you start, be sure you have enough room around the vehicle.
2. Firmly apply both the manual parking brake and the Ye‘@lar brake. See
“Brakes” and “Parking Brake” in the Index.
Do not use the accelerator
pedal.
3. Be ready to turn off the engine immediately if it starts.
4. On automatic transmission vehicles, try to start the engine in each gear.
The starter should work only in
“P’ (Park) or “N” (Neutral).
On manual transmission vehicles, put the shift lever
in “N” (Neutral), push
the clutch down halfway, and try to start the engine. The starter should work
only when the clutch is pushed down all the way to the floor.
Steering column lock operation - While parked, try to turn the key to
LOCK in each gear shift position.
With an automatic transmission, the key should turn to
LOCK only when
the gear shift is in
“P” (Park).
On vehicles with a key release lever, try to turn the key to LOCK without
pressing the lever. The key should turn to
LOCK only with the key lever
depressed.
On all vehicles, the key should come out only in
LOCK.
Parking brake and transmission
“P’ (PARK) mechanism operation -
Park on a fairly steep hill, with the vehicle facing downhill. Keeping your
foot
on the regular brake, set the manual parking brake.
To check the parking brake: With the engine running and the
transmission in
“N” (Neutral), slowly remove foot pressure from the
regular brake pedal.
Do this until the vehicle is held by the parking
brake
only.
To check the “P” (Park) mechanism’s holding ability: Apply the regular
brake and shift to
“P’ (Park). Release the manual parking brake, then
slowly release the regular brake.
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