manual transmission GMC SIERRA 1993 User Guide

2 (Second Gear)-Press the clutch pedal as you let up on the
accelerator pedal and shift into
2. Then, slowly let up on the clutch
pedal as you press the accelerator pedal.
3, 4 and 5 (Third, Fourth and Fifth Gears)-Shift into 3, 4 and 5 the
same way you do for
2. Slowly let up on the clutch pedal as you press
the accelerator pedal.
To Stop -Let up on the accelerator pedal and press the brake pedal. Just
before the vehicle stops, press the clutch pedal and the brake pedal, and
shift to Neutral.
N (Neutral)-Use this position when you start or idle your engine,
R (Reverse)-To back up, press down the clutch pedal and shift into R. Let
up on the clutch pedal slowly while pressing the accelerator p\
edal.
Shift to
R (Reverse) only after your vehicle is stopped. Shifting to R
(Reverse) while your vehicle is moving could damage your transmission
Also, use Reverse, along with the parking brake, for parking your vehicle.
FivemSpeed Manual 7Fansmission
(With Low Gear)
e
K2464
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This is your shift pattern. Here’s how to operate your transmission:
I IC2287
L (Low Gear) (Overdrive Five-Speed Transmission Only)-Press the
clutch pedal and shift into
L. Then, slowly let up on the clutch pedal as
you press the accelerator pedal. Shift into
L only when the vehicle
speed is below
5 mph (8 km/h). If you try to shift into L at excessive
vehicle speeds, the shift lever will not move into the
L position until
vehicle speed is reduced.
L is intended for heavy loads and is not recommended for normal
driving.
1 (First Gear)-Press the clutch pedal and shift into 1. Then, slowly let
up on the clutch pedal as you press the accelerator pedal.
You can shift into
1 when you’re going less than 20 mph (32 kmlh). If
you’ve come to a complete stop and it’s hard to shift into 1, put the
shift lever in
N (Neutral) and let up on the clutch. Press the clutch pedal
back down. Then shift into
1. If you try to shift into 1 at excessive
vehicle speeds, the shift lever will not move into the
1 position until
vehicle speed is reduced.
accelerator pedal and shift into
2. Then, slowly let up on the clutch
pedal as you press the accelerator pedal.
Higher Gears -Shift into the higher gears the same way you do for 2.
Slowly let up on the clutch pedal as you press the accelerato\
r pedal.
2 (Second Gear)-Press the clutch pedal as you let up on the
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To Stop-Let up on the accelerator pedal and press the brake pedal\
. Just
before the vehicle stops, press the clutch pedal and the brake pedal, and
shift to
N (Neutral).
N (Neutral)-Use this position when you start or idle your engine.
R (Reverse)-To back up, press the clutch pedal and shift into R. Let up on
the clutch pedal slowly while pressing the accelerator pedal. If you shift from
OD into R, the shift lever must first be placed in the N (Neutral) position
centered between
2 and 3 prior to shifting into R.
NOTICE I
Shift to R (Reverse) only after your vehicle is stopped. Shifting to R
(Reverse) while vour vehicle is movina could damaae vour transmission.
- -
Also, use Reverse, along with the parking brake, for parking your ve\
hicle.
Shift Light
I K2317
If you have a manual transmission, you may have a SHIFT light. This light
will show you when to shift to the next higher gear for best fuel economy.
When this light comes on, you can shift to the next higher gear
if weather,
road and traffic conditions let you. For the best fuel economy, accelerate
slowly and shift when the light comes on.
While you accelerate, it is normal for the light to go on and
off if you quickly
change the position
of the accelerator. Ignore the SHIFT light when you
downshift.
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Features & Controls
Four-Wheel-Drive Vehicles Only: If your vehicle has four-wheel drive and is
equipped with a manual transmission, disregard the shift light \
when the
transfer case is in
4 LOW.
Shift Speeds-Manual Transmission
This chart shows when to shift to the next higher gear for best fuel economy.
MANUAL TRANSMISSION RECOMMENDED SHIFT SPEED
IN MPH (KMIH)
Engine
and
VIN
45-50 25-40 50 40 15
4,3L
V6
3 to 4 2 to 3 1 to 2 3 to 4 2 to 3 1 to 2 Code
Trans. Cruise Shift Speed
Acceleration Shift Speed
(4
- (64) (40) (24) (K)
(72-80)
(40-64) - (80) (64)
(24)
5-Speed*
40 25 15 5.7L V8
- -
* Transmission with L (low) gear only. L (low) is intended for heavy loads and
is not recommended for normal driving.
I TO1 61 I
If your speed drops below 20 mph (32 km/h), or if the engine is not running
smoothly, you should downshift to the next lower gear. You may have to
downshift two or more gears
to keep the engine running smoothly or for good
performance.
I A If you skip more than one gear when you downshift, you could lose
I & control of your vehicle: And you could injure yourself or others. I
I Ju skip more than one gear when you downshift, or if you race the
;,,,ine when you downshift, you can damage the clutch or transmission. \
I
Locking Rear Axle
If you have this feature, your rear axle can give you additional \
traction on
snow, mud, ice, sand or gravel.
It works like a standard axle most of the
time,
but when one of the rear wheels has no traction and the other does,
the locking feature
will allow the wheel with traction to move the vehicle.
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Features & Controls
Propshaft Brake Burnish Procedure
If you have a 3500 HD Model, it is recommended that the propshaft mounted
parking brake be burnished as part of the new vehicle break in. The parking
brake
will work best after it has been burnished following these instructions.
Make
10 stops, using the parking brake foot pedal, from 20 mph (32 k\
m/h)
about 2
112 miles (4 km) apart. In between stops, drive the vehicle at 20
mph (32 kmlh).
Torque Lock
The parking brake should be set first whenever leaving the dri\
ver’s seat. If
you are parked on a hill and the transmission is placed in P (Park) before
the parking brake is set, the weight of the vehicle may put too much force
on the parking pawl in the transmission.
It may be difficult to pull the selector
lever out of
P (Park). This is called “torque lock.” To prevent this, the parking
brake should be set
BEFORE moving the selector lever to P (Park).
When preparing
to move the vehicle, the selector lever should be moved out
of
P (Park) BEFORE releasing the parking brake. Set the parking brake first,
then release the transmission from
P (Park), even on level surfaces.
If “torque lock” does occur, you may have to have another vehicle nudge
your vehicle uphill a little
to take some of the pressure off the transmission
while you pull the selector lever out of
P (Park).
Shifting Into P (Park) (Automatic Transmission Models Only)
1 CAUTION
It can be dangerous to get out of your vehicle if the shift lever is not
fully in
P (Park) with the parking brake firmly set. Your vehicle can
roll.
If you have left the engine running, the vehicle can move suddenly.
You
or others could be injured. TO be sure your vehicle won’t move,
when you’re
on fairly level ground, use the steps that follow.
If you have four-wheel drive and your transfer case is in N (Neutral),
your vehicle will be free to roll-even if your shift lever is in P
{Park). So, be sure the transfer case is in a drive gear-not N
(Neutral).
If you are parking on a hill, or if you’re pulling a trailer, also see
“Parking on Hills9’ or “Towing a Trailer” in the Index. I
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Leaving Your Vehicle With the Engine Running (Automatic
Transmission Models Only)
I CAUTION
A It can be dangerous to leave your vehicle with the engine running. 1
1 Your vehicle could move suddenly if the shift lever is not fully in P
(Park) with the parking brake firmly set.
If you have a four-wheel drive with a manual transfer case sh\
ift lever
and your transfer case
is in N (Neutral), your vehicle will be free to
roll, even
if your shift lever is in P (Park). So be sure the transfer
case is in a drive gear-not in
N (Neutral).
And,
if you leave the vehicle with the engine running, it could
overheat and even catch fire. You or others could be injured. Don’t
leave your vehicle with the engine running unless you have to.\

If you have to leave your vehicle with the engine running, be su\
re your
vehicle
is in P (Park) and your parking brake is firmly set, before you leav\
e
it. If you have a four-wheel drive, be sure that the transfer case i\
s in a drive
gear-not in
N (Neutral).
After you’ve moved the shift lever into the
P (Park) position, hold the regular
brake pedal down. Then, see
if you can move the shift lever away from P
(Park) without first pulling it toward you.
If you can, it means that the shift lever wasn’t fully locked into
P (Park).
Parking Your Vehicle (Manual Transmission Models Only)
Before you get out of your vehicle, put your manual transmission in R
(Reverse) and firmly apply the parking brake.
If you have four-wheel drive, be sure your transfer case is in a\
drive gear.
Your vehicle could roll
if it isn’t.
If you are parking on a hill, or if your vehicle is equipped to tow a trailer,
see “Parking on Hills” or “Towing a Trailer” in the\
Index.
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Featwes & Contmk
The front axle portion of the indicator diagram will light up when you shift into
four-wheel drive.
A slight delay between shifting and the indicator’s lighting is
normal.
If the indicator does not light up, or if the front axle light does not go
out after you shift out of four-wheel drive, have your dealer check your
system.
When your headlights or parking lights are on, rotate the dial\

to the right of
your headlight switch up
to brighten, or down to dim, your transfer case
indicator light.
Transfer Case Shift Positions
2H (High): This setting is for driving in most street and highway situations.
Your front axle is not engaged in two-wheel drive.
4H (High): This setting engages your front axle to help drive your vehicle.
Use
4H when you need extra traction, such as on wet or icy roads, or in
most
off -road situations.
N (Neutral): Shift to this setting only when your vehicle needs to be towed or
when using a power take
off.
4L (Low): This setting also engages your front axle to give you extra traction,
but should be used only for off-road or on extremely slippery surfaces.
You can shift from
2H to 4H or from 4H to 2H while the vehicle is moving.
Your front axle will engage faster
if you take your foot off of the accelerator
for a few seconds after you shift. In extremely cold weather it may be
necessary to stop or slow the vehicle to shift out of
2H.
To shift into or out of 4L or N (Neutral):
1. Slow the vehicle to a roll, about 3 mph (5 kmlh) and shift your
2. Shift the transfer case shift lever in one continuous motion.
transmission into neutral.
Don’t pause in
N (Neutral) as you shift the transfer case into 4L, or your
aears could clash.
Kernember that driving
in 4H or 4L may reduce fuel economy. Also, driving in
four-wheel drive on dry pavement could cause your tires to wea\
r faster and
make your transfer case harder
to shift.
Front Axle Locking Feature
The front axle locks and unlocks automatically when you shift the transfer
case.
A slight delay for the axle to lock or unlock is normal. If the outside
temperature is very hot, or the vehicle has been used under hard driving
conditions, there may be a slight delay for the axle to unlock.
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When using concentrated washer flui
follow the manufacturer’s
instructions for adding water.
Don’t mix water with ready-to-use washer fluid. Water can ca\
use the
solution
to freeze and damage your washer fluid tank and other parts
of the washer system.
Also, water dc ;n’t clean as well as washer
fluid.
allows for expansion, which could damage the tank
if it is completely
full.
’
I
Fill your washer fluid tank only 314 full when it’s very cold. This
Don’t use radiator antifreeze in your windshield washer. It can
damaae your washer system and paint.
Cruise Control (Option)
K2247
With Cruise Control, you can maintain a speed of about 25 mph (40 km/h) or
more without keeping your foot on the accelerator. This can re\
ally help on
long trips. Cruise Control does not work at speeds below about 25 mph
(40 km/h).
When you apply your brakes, or push the clutch pedal, if you \
have
a manual
transmission, the Cruise Control shuts
off.
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Features & Confmls
To Get Out of Cruise Control
I
K2206
There are several ways to turn off the Cruise Control:
1. Step lightly on the brake pedal or push the clutch pedal, if you have a
manual transmission
OR;
2. Move the Cruise switch to OFF.
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SHlFT Indicator Light
I
K2317
This light, with the SHlFTlarrow symbol, is at the left side of the instrument
cluster on some vehicles with manual transmissions. Depending on your
particular model, your vehicle may not have this light. The SH\
IFT indicator light will help you get the best fuel economy. See “Shift \
Light” or “Shift
Speeds-Vehicles Without Shift Light” in this section for more\
information.
Headlight High Beam Indicator Light
-4
K2331
This light with the blue high beam symbol is on the left sid\
e of the
instrument cluster. The high beam indicator is on whenever you \
use your high
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