transmission GMC SIERRA 1995 User Guide

You can shift into FIRST GEAR (2) when you’re going less than 20
mph (32 kmh). If you’ve come to a complete stop and it’s hard to shift
into FIRST GEAR
(2), put the shift lever in NEUTRAL (N) and let up
on the clutch. Press the clutch pedal back down. Then shift into FIRST
GEAR
(2). If you try to shift into FIRST GEAR (2) at excessive
vehicle speeds, the shift lever will not move into the FIRST GEAR
(2)
position until vehicle speed is reduced.
0 SECOND GEAR (3) - Press the clutch pedal as you let up on the
accelerator pedal and shift into SECOND GEAR
(3). Then, slowly let
up on the clutch pedal as you press
the accelerator pedal.
0 THIRD GEAR (4), FOURTH GEAR (5) - Shift into the higher
forward gears
the same way you do for SECOND GEAR (3). 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 (N) - Use this position when you start or idle your
engine.
REVERSE (R) - To back up, first press down the clutch pedal. Wait
about
5 seconds for the internal parts to stop spinning and then, shift
into REVERSE (R). Let up
on the clutch pedal slowly while pressing
the accelerator pedal.
NOTICE:
Shift to REVERSE (R) only after your vehicle is stopped.
Shifting to
REVERSE (R) while your vehicle is moving could
damage your transmission.
Also, use REVERSE (R), along with the parking brake, when turning
off your engine and parking your vehicle.
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Five Speed Manual Transmission (Without
Low Gear)
6 If you have a five
speed manual
transmission without
low gear
(RPO MG5),
this is your shift
pattern. Here’s how to
operate your
transmission:
FIRST GEAR (1) - Press the clutch pedal and shift into FIRST
GEAR
(1). Then, slowly let up on the clutch pedal as you press the
accelerator pedal.
You can shift into FIRST GEAR (1 ) when you’re going less than 20
mph (32 kdh). If you’ve come to a complete stop and it‘s hard to shift
into FIRST GEAR
(1). put the shift lever in NEUTRAL (N) and let up
on the clutch. Press the clutch pedal back down. Then shift into FIRST
GEAR
(1).
SECOND GEAR (2) - Press the clutch pedal as you let up on the
accelerator pedal and shift into SECOND GEAR
(2). Then, slowly let
up
on the clutch pedal as you press the accelerator pedal.
THIRD GEAR (3), FOURTH GEAR (4) and FIFTH GEAR (5) -
Shift into THIRD GEAR (3). FOURTH GEAR (4) and FIFTH GEAR
(5) the same way you do for SECOND GEAR (2). Slowly let up on the
clutch pedal
as you press the accelerator pedal.
Just before the vehicle stops, press the clutch pedal and the brake pedal,
and shift to NEUTRAL
(N).
0 To Stop - Let up on the accelerator pedal and press the brake pedal.
NEUTRAL (N) - Use this position when you start or idle your
engine.
REVERSE (R) - To back up, first press down the clutch pedal. Wait
about 5 seconds for the internal parts to stop spinning and then, shift
into REVERSE (R). Let up on the clutch pedal slowly while pressing
the accelerator pedal.
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NOTICE:
Shift to REVERSE (R) only after your vehicle is stopped.
Shifting to REVERSE
(R) while your vehicle is moving could
damage
your transmission.
Also, use REVERSE (R), along with the parking brake, when turning
off your engine and parking your vehicle.
SHIFT Light
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.
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.
Manual Transmission Shift Speeds
If you have a five speed manual transmission with low gear (RPO MW3)
and one of the following engines, this chart shows when to shift to the next
higher gear for best fuel economy.
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Recommended Shift Speeds*
Five
Speed Manual Transmission with Low Gear
Acceleration Shift Speed MPH
(KW)
Engine
(VIN
CODE)
4.3L V6 (Z)
6.5L V8 (P)
4.3L V6 (Z)
6.SL V8 (P)
2 to 3
15 (24)
1 5 (24)
3 to 4
40 (64)
40 (64)
4 to 5
50 (80)
45 (72)
Cruise Shift Speed MPH (KM/H)
15 (24)
I 5 (24) 25-40
(40-64)
25-40
(40-64) 45-50
(72-80)
45 (72)
*LOW GEAR (1) is intended only for heavy loads and is not recommended
for normal driving.
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.
A CAUTION:
If you skip more than one gear when you downshift, you could
lose control of your vehicle. And you could injure yourself or
others. Don’t shift
down more than one gear when you
downshift.
NOTICE:
If you skip more than one gear when you downshift, or if you
race the engine when you downshift, you can damage the engine,
clutch or transmission.
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NOTICE:
Driving with the parking brake on can cause your rear brakes to
overheat. You may have to replace them, and you could also
damage other parts of your vehicle. Always check to be sure
your parking brake is fully released before you drive.
If you are towing a trailer and are parking on any hill: See “Towing a
Trailer” in the Index. That section shows what to do first to keep the trailer
from moving.
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 (ten) stops, using the parking brake foot pedal, from 20 mph (32
km/h) about
2 1/2 miles (4 km) apart. In between stops, drive the vehicle at
20 mph (32 km/h).
Torque Lock
When parking, 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
PARK (P). This is called ”torque lock.” To find out how to
avoid torque lock, see “Torque Lock” later in this section.
Shifting lnto PARK (P) (Automatic
Transmission Models Only)
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I. Hold the brake
pedal down
with
your right foot
and set the
parking brake.
2. Move the shift lever into PARK (P) position like this:
0 Pull the lever toward you.
0 Move the lever up as far as it will go.
3. If you have four-wheel drive, be sure the transfer case is in a drive gear
- not in NEUTRAL (N)
4. Move the ignition key to LOCK.
5. Remove the key and take it with you. If you can walk away from your
vehicle
with the ignition key in your hand, your vehicle is in PARK (P).
Shifting Out of PARK (P)
Your vehicle has a brake-transmission shift interlock system. You have to
fully apply your regular brakes before you can shift from PARK (P). See
“Automatic Transmission”
in the Index.
If you cannot shift out of PARK (P), ease pressure on the shift lever and
push the shift lever all the way up into PARK (P) as you maintain brake
application. Then, move the shift lever into the gear you want.
If you ever hold the brake pedal down but still can’t shift out of PARK (P),
try this:
1. Turn the key to OFF.
2. Apply and hold the brake until the end of Step 4.
3. Shift to NEUTRAL (N).
3. Start the vehicle and then shift to the drive gear you want.
5. Have the brake-transmission shift interlock system fixed as soon as
you can.
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Leaving Your Vehicle With the Engine Running
(Automatic Transmission Models
Only)
A CAUTION:
It can be dangerous to leave your vehicle with the engine
running. Your vehicle could move suddenly if the shift lever
is
not fully in PARK (P) with the parking brake firmly set. If you
have four-wheel drive with a manual transfer case shift lever
and your transfer case is in
NEUTRAL (N), your vehicle will be
free to roll, even if your shift lever is in PARK
(P). So be sure the
transfer case
is in a drive gear - not in NEUTRAL (N). 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 sure your
vehicle is in PARK (P) and your parking brake is firmly set before you leave
it. After you’ve moved the shift lever into the PARK (P) position, hold the
regular brake pedal down. Then. see
if you can move the shift lever away
from PARK (P) without first pulling
it toward you.
If
you can, it means that the shift lever wasn’t fully locked into PARK (P).
Torque Lock (Automatic Transmission)
If you are parking on a hill and you don’t shift your transmission into PARK
(P) properly, the weight of the vehicle may put too much force on the
parking pawl in the transmission.
You may find it difficult to pull the shift
lever out of PARK (P). This is called “torque lock.” To prevent torque lock,
set the parking brake and then shift into PARK (P) properly before you
leave the driver’s seat.
To find out how, see “Shifting Into PARK (P)” in the
Index.
When you are ready to drive, move the shift lever out
of PARK (P) before
you release the parking brake.
If “torque lock” does occur, you may need to have another vehicle push
yours
a little uphill to take some of the pressure from the transmission, so
you can pull the shift lever out of PARK (P).
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Parking Your Vehicle (Manual Transmission
Models Only)
Before you get out of your vehicle, put your manual transmission in
REVERSE (R), turn off the engine, 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 pulling a trailer, see "Parking on
Hills" or '"Towing a Trailer" in the Index.
Parking Over Things That Burn
1 A CAUTION:
Things that can burn could touch hot exhaust parts under your \
vehicle and ignite. Don't park over papers, leaves, dry grass
or
other things that can burn.
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Engine Exhaust
A CAUTION:
Engine exhaust can kill. It contains the gas carbon monoxide
(CO), which you can’t see or smell. It can cause unconsciousness
and death.
You might have exhaust coming in if:
Your exhaust system sounds strange or different.
Your vehicle gets rusty underneath.
Your vehicle was damaged in a collision.
Your vehicle was damaged when driving over high points on
the road or over road debris.
Repairs weren’t done correctly.
Your vehicle or exhaust system had been modified improperly.
If you ever suspect exhaust is coming into your vehicle:
Drive it only with all the windows down to blow out any CO;
and
Have your vehicle fixed immediately.
Running Your Engine While You’re Parked
(Automatic Transmission)
It’s better not to park with the engine running. But if you ever have to, here
are
some things to know.
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The from axle portion
of the indicator
diagram will light
up
when you shift into
four-wheel drive.
Some delay between shifting and the indicator's lighting is normal.
If the
indicator light 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 headlamps or parking lamps are
on, rotate the thumb wheel next
to the headlamp switch up to brighten, or down to dim, your transfer case
indicator light.
2-WHEEL HIGH (2H)
This setting is for driving
in most street and highway situations. Your
front axle is not engaged
in two-wheel drive.
4-WHEEL HIGH (4H)
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.
0 NEUTRAL (N)
Shift to this setting only when your vehicle needs to be towed or when
using
a power take-off.
0 4-WHEEL LOW (4L)
This setting also engages your front axle to give you extra power, but
should be used only for off-road driving.
You can shift from 2-WHEEL HIGH (2H)
to &WHEEL HIGH (4H) or from
4-WHEEL HIGH (4H) to 2-WHEEL HIGH (2Hj 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 2-WHEEL HIGH (2H).
To shift
into or out of 4-WHEEL LOW (4L) or NEUTRAL (N):
0 Slow the vehicle to a roll. about 1-3 mph (2-5 km/h) and shift an
automatic transmission into neutral,
or with a manual transmission
press the clutch pedal.
Shift the transfer case shift lever in one continuous motion.
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