GMC SIERRA 1994 Owners 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 Tndex for the proper lubricant to use.
Accelerator cables and cruise control cables should not be lubricated.
Any
cab1e.s 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 “Recommended Fluids and Lubricants”
in the Index 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 mamtenance schedule to find out how often the constant velocity
joints must be lubricated. See “Recommended Flui-ds and Lubricants”
in the
Index for the proper lubricant to use.
Body
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 wiped clean with
a
rubber lubricant.
6-51
ProCarManuals.com

Never use too much of any lubricant and be sure to wipe up any extra
lubricant when
you are finished.
Your maintenance schedule
will tell you how often to lubricant 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
the handle working smoothly.
Your maintenance schedule
will tell you how often to lubricant 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.
6-52
ProCarManuals.com

Contact your dealer to learn how to prepare your vehicle for longer storage
periods.
Bulb Replacement
Before you replace any bulbs, be sure that all the lights are\
off and the
engine isn’t running.
Sealed Beam Headlights
I
1. Remove the four
screws from the
headlight retainer.
2. Pull the headlight
out and remove
the retainer.
3.
4.
5.
Unplug and
remove the
headlight.
Plug in the new
headlight and put
it in place.
Install the
retainer
to the
headlight and
tighten the
screws.
6-53
ProCarManuals.com

Halogen Bulbs
NOTICE:
Avoid touching the bulb or letting it come in contact with
anything damp. Oil from your skin or moisture on the bulb can
cause the bulb to explode when it is turned on.
If either comes in
contact with the bulb, clean it with alcohol or a suitable
degreaser and wipe the bulb dry.
Composite Headlights
1.
2.
Remove the two
screws at the top
of the radiator
support.
Pull the headlight
lens assembly
out.
6-54
ProCarManuals.com

3. Unplug the
electrical
connector.
4. Turn the bulb to
the left and
i
remove it.
5. Put the new bulb in the lens assembly and turn it to the right until it is
tight.
6. Plug in the electrical connector.
7. Put the headlight lens assembly back into the vehicle. Install and
tighten the two screws.
Front Parkingflurn Signal Lights with
Sealed Beam Headlights
1. Remove the two screws at the inside edge of the parking/turn signal
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
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
6. Put the new bulb in the socket, gently press in on the bulb and turn it to
7. Put the socket back into the light assembly and turn it to the right until
8. Put the parking/turn signal light assembly back into the vehicle and
light assembly.
sliding
it out at the outside edge.
to the
left.
socket.
the right until it is tight.
it locks.
tighten the screws.
6-55
ProCarManuals.com

Front Parkingnurn Signal Lights with
Composite Headlights
-7
I. Remove the
screws and take
out the parkinghurn
signal light
assembly.
2. Squeeze the tab
on the side of the
light socket while
turning the socket
to the left.
3.
4.
Pull the socket
out
of the light
assembly.
Push
in gently on
the bulb, turn it to
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
the right
until it is tight.
6. Put the socket back into the light assembly and turn it socket to the
right
until it locks.
7. Put the parkinghrn signal light assembly back into the vehicle and
tighten the screws.
6-56
ProCarManuals.com

Side Marker Lights with Sealed Beam and Composite Headhghts
1. Remove the
screws and
pull
out the
parkinghrn
signal light
assembly.
2. Reach through
the opening
and
turn the side
marker bulb
socket to
the left
and remove
it.
3.
4.
Pull the bulb
straight out
of the
socket.
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
6. Replace the parkinghurn signal light assembly and tighten the screws.
right to tighten
it.
6-57
ProCarManuals.com

Fender Marker Lights-
Dual Rear Wheel Pickup Models
1.
2.
3.
Remove the screws and take
the fender marker
assembly out
of
the fender.
Turn the bulb
socket to the left
and remove it
from the lens assembly.
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 lens assembly and turn it to th\
e right to
tighten it.
6. Replace the lens and tighten the screws.
ProCarManuals.com

Tailgate Marker Lights
1. Use a screwdriver
to gently pry the
lenshulb assembly from
the lens holder.
2. Unplug the
lenshulb
assembly at the
connector wire.
3. Plug in a new
lensbulb
assembly and
push the
connector wire
into the hole in
the tailgate.
4. Snap the
lenshulb
assembly into the
lens holder.
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.
6-59
ProCarManuals.com

Cargo LighKenter High Mount Stoplamp (CHMSL)
1. Remove the
screws and lift off
the lens.
2. Pull the old bulb straight out
of the
socket.
Rear Lights - Pickup Models
3. Put a new bulb
into
the socket
and push it in
until it is tight.
4. Replace the lens
and tighten the
screws.
1. Open the tailgate.
2. Remove the two
rear light assembly screws
near the tailgate
latch and pull out
the light assembly.
E
6-60
ProCarManuals.com