1993 GMC SIERRA manual transmission

Featums & Controls
Section
Here you can learn about the many standard and optional featur\
es on your
vehicle. and information on starting. shifting. and braking
. Also explained are
the instrument panel and the warning systems that tell you
if everything is
working properly-and what to do
if you have a problem .
For explanation of vehicle symbols in this section. refer to “Vehicle
Symbols” in Section 0 .
Keys ........................................................................\
............................................... 2-3
Your Doors and How They Work
........................................................................\
2-5
Side Doors ........................................................................\
................................. 2-5
Door Locks
........................................................................\
................................. 2-6
Tailgate
........................................................................\
........................................... 2-8
Theft ........................................................................\
............................................... 2-9
New Vehicle Break-In
........................................................................\
................. 2-10
Ignition Switch
........................................................................\
............................. 2-10
Sterting Your Gasoline Engine
........................................................................\
... 2-12
Starting Your Diesel Engine
........................................................................\
....... 2-15
Automatic Transmission
........................................................................\
.............. 2-21
Five-Speed Manual Transmission (Without Low Gear)
.................................... 2-24
Five-Speed Manual Transmission (With Low Gear)
......................................... 2-25
Locking Rear Axle
........................................................................\
....................... 2-28
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If you have a quick-release tailgate it can be removed by:
1. Raising the tailgate slightly and removing both retaining cables.
2. Lift the tailgate at the right side and pull it out at the left side.
Reverse the above procedure to reinstall. Make sure the tailgate is secure.
Then
Vehicle theft is a big business, especially in some cities. Although your
vehicle has a number of theft deterrent features, we know that nothing we
put on it can make it impossible to steal. However, there are ways you can
help.
Key in the Ignition: If you walk away from your vehicle with the keys inside,
it’s an easy target for joy riders or professional thieves-so don’t do it. When
you park your vehicle and open the driver’s door, you’ll hear a tone reminding
you to remove your key from the ignition and take it with you. Always do
this. Your steering wheel will be locked, and
so will your ignition. If you have
an automatic transmission, taking your key out also locks your \
transmission.
And remember to lock the doors.
Parking at Night: Park in a lighted spot, close all windows and lock your
vehicle. Remember to keep your valuables out of sight. Put them in a storage
area, or take them with you.
Parking Lots: If you park in a lot where someone will be watching your vehicle\
,
it’s best to lock it up and take your keys. But what
if you have to leave your
ignition key? What
if you have to leave something valuable in your vehicle?
Put your valuables in a storage area or console.
Lock the console.
Lock all doors except the driver’s,
Then take the door key with you.
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LOCK: This position locks your ignition, steering wheel and transmissi\
on. It’s
a theft deterrent feature.
You will only be able to remove your key when the
ignition is turned
to LOCK.
Off: This position lets you turn off the engine but still turn the steering wheel.
Use Off
if you must have your vehicle in motion while the engine is off (for
example,
if your vehicle is being pushed).
Run: This is the position for driving.
Start: This starts your engine.
A On manual transmission vehicles, turning the key to LOCK will lock I
A the steering column and result in a loss of ability to steer the
vehicle. This could cause a collision.
If you need to turn the engine
off while the vehicle is moving, turn the key only to OFF. Don’t move
the key release lever while the vehicle is moving.
-
f your key seems stuck in LOCK and you can’t turn it, be sure it is all
:he way in.
If it is, then turn the steering wheel left and right while you
:urn the key hard. But turn the key only with your hand. Usi\
ng a tool to
‘orce
it could break the key or the ignition switch. If none of this works,
:hen your vehicle needs service.
NOTICT
I
Key Release Levc-
KO495
The ignition key cannot be removed from the ignition of manual transmission
vehicles unless the key release lever is used.
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Features & Controls
A On manual transmission vehicles, turning the key to LOCK will lock
3 steering column and result in a loss of ability to steer the
vehicle. This could cause a collision. If you need to turn th\
e engine
off while the vehicle is moving, turn the key only to OFF. Don’t move
the key -‘?ase lever while the vehicle is mc
IQ.
To Remove the Key
On manual transmission vehicles, turn the key to the LOCK position while
pressing the key release lever down. Keeping your finger on the lever, pull
the key straight out.
On automatic transmission vehicles, turn the key to
LOCK and pull it straight
out.
Starting Your Gasoline Engine
If you have a diesel engine, see “Starting Your Diesel Engine” in the Index.
Engines start differently. The 8th digit of your Vehicle Identification Number
(VIN) shows the code letter or number for your engine. You will find the VIN
at the top left
of your instrument panel. (See “Vehicle Identification Number”\

in the Index.)
Follow the proper steps to start the engine.
To Starl Your 4.3 Liter (Code Z) engine
or
5.0 Liter (Code H) engine:
1. Automatic Transmission
Move your shift lever to P (Park) or N (Neutral). Your engine won’t start
in any other position-that’s a safety feature. To restart when you’re
already moving, use
N (Neutral) only.
NOTICE I
Manual Transmission
Shift your gear selector to neutral and hold the clutch pedal to the floor
while starting the engine. Your vehicle won’t start if the clutch pedal is
not all the way down-that’s a safety feature.
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2. Don’t push the accelerator pedal before starting your engine.\
In some
other vehicles you might need to do this, but because of your vehicle’s
computer systems, you don’t.
key. The idle speed will go down as your engine gets warm.
3. Turn your ignition key to Start. When the engine starts, let go of the
Holding your key in
Start for longer than 15 seconds at a time will caus
your battery to be drained much sooner. And the :essive heal
m
damage your starter motor.
4.
5.
If it doesn’t start right away, hold your key in Start. If it doesn’t start in
three seconds, push the accelerator pedal about one-quarter of the way
down for
12 more seconds, or until it starts.
If your engine still won’t start (or starts but then stops), \
it could be
flooded with too much gasoline. Try this:
Wait
15 seconds to let the starter motor cool down. Then push your
accelerator pedal all the way to the floor. Hold it there. Then, hold the
key in
Start for no more than ten seconds. This clears the extra
gasoline from the engine.
If the engine still doesn’t start, wait another 15 seconds and do it all again.
When the engine starts, let go of the key and accelerator ped\
al.
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, ch\
eck with
-w dealer. If you don’t, your engine might not perform properly
If you ever have to have your vehicle towed, see the part of th\
is Manua
that tells how to do
it wit‘--.Jt damaging your ?hide. See “Tc ‘ng Yo
Vehicle’’ in the lnde
To Start Your 5.7 Liter (Code K) engine
or 7.4 Liter (Code N) engine:
1. Automatic Transmission
Move your shift lever to P (Park) or N (Neutral). Your engine won’t start
in any other position-that’s a safety feature.
To restart when you’re
already moving,
use N (Neutral) only.
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Features &
Don’t try to shift to P (Park) if your vehicle is moving. If you do, you
could damage the transmission. Shift to
P (Park) only when your vehicle is
stopped.
m
Manual Transmission
Shift your gear selector to neutral and hold the clutch pedal to the floor
while starting the engine. Your vehicle won’t start
if the clutch pedal is
not all the way down-that’s a safety feature.
2. Don’t push the accelerator pedal before starting your engine.\
In some
other vehicles you might need
to do this, but because of your vehicle’s
computer systems, you don’t.
3. Turn your ignition key to Start. When the engine starts, let go of the
key. The idle speed will
go down as your engine gets warm.
7.4L Engine Cold Start: In cold weather, below 60” F (16” C), start the
engine the same way but push the accelerator pedal one-quarter \
of the
way down and hold it there for about
2 seconds after the engine starts.
Holding your key
in Start for longer than 15 seconds at a time will cause
vwr battery
to be drained much sooner. And the excessive heat can
,clmage your starter motor.
4. If it doesn’t start right away, hold your key in Start. If it doesn’t start in
three seconds, push the accelerator pedal about one-quarter of \
the way down for 12 more seconds, or until it starts.
flooded with
too much gasoline. Try this:
5. If your engine still won’t start (or starts but then stops), it could be
Wait 15 seconds to let the starter motor cool down. Then push your
accelerator pedal all the way
to the floor. Hold it there. Then, hold the
key in
Start for no more than ten seconds. This clears the extra
gasoline from the engine.
If the engine still doesn’t start, wait another 15
seconds and do Step 5 again.
Hot Engine Restart, 5.7L and 7.4L Engines (Vehicles Over 8500 GVWR): If
your engine is already hot and then stalls, turn your ignition\
key to Off. Then,
turn your key
to Run, and wait about 20 seconds before you restart your
engine.
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When the engine starts, let go of the key and accelerator ped\
al. Your engine is designed to work with the electronics in your vehicle.
If you 1
add electrical parts or accessories, you could change the way the fuel
injection system operates. Before adding electrical equipment, ch\
eck 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 Manu; .
that tells how to do it without damaging your vehicle. See “Towing Your
Vehicle” in the Index.
NOTICE I
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 engin\
e. 1%-
you can’t avoid deep puddles or standing water, drive through very slowlv. I
--
Never drive through standing water more than 8 inches deep if yo~
vehicle has a diesel engine.
Also, don’t drive through any standing water
faster than
5 mph (8 kmh). If you do, water can be drawn in through the
air intake, and this can severely damage your engine.
-
Driving In Snow (Diesel Engines)
When driving in a heavy snowstorm or in swirling snow with a diesel engine,
snow can get into the air intake system.
If you keep driving in these
conditions, the air cleaner may get plugged, causing black smok\
e and
loss of
power. In an emergency,
if the air cleaner is plugged with snow, you can
remove the air cleaner. Then, drive to a place
of safety as soon as possible
and put the air cleaner back on.
Starting Your Diesel Engine
Your diesel .engine starts differently than a gasoline engine.
1. Automatic Transmission:
Move your shift lever to P (Park) or N (Neutral). Your engine won’t start
in any other position-that’s a safety feature.
To restart when you’re
already moving, use
N (Neutral) only.
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Featums & Controls
Manual Transmission:
Move your shift lever to neutral and hold the clutch pedal to the floor
while starting the engine. Your vehicle won't start
if the clutch pedal is
not all -the way down-that's a safety feature.
2. Turn your ignition key to Run. Don't turn it to Start.
- LUUk
I
3. Press the accelerator pedal all the way down and then release \
it.
With the ignition in Run, the GLOW PLUGS light will come on. This
means that part
of your engine is being warmed up for better starting.
When the light goes
off, your engine is ready to start.
If the engine ls already warm, this light may not come.'on. That's normal.
4. 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. I
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