2005 PONTIAC GTO engine

Ignition Positions
The key can be turned to
one of three positions
while in the ignition switch.
A (LOCK):This is the only position from which you can
insert or remove the key. When the key is inserted
and is in this position, the radio, wipers, and accessory
power outlet will continue to work until the key is
removed. Once the key is removed these accessories
will turn off. By selecting the ON switch on the radio
these accessories will continue to work for one hour or
until either door is opened. If the key is left inserted
in this position, a chime will sound when the driver’s
door is opened to remind you the key has been left in
the ignition. If the key is left in the ignition, it can
drain the battery. Make sure to remove the key when
leaving the vehicle.The key can only be turned to this position if the
vehicle’s automatic transmission is in PARK (P).
To help guard against theft, your vehicle’s engine is
automatically disabled shortly after turning the key to this
position. A flashing padlock symbol on the bottom left
corner of the instrument panel indicates this.
The steering column is automatically locked when the
key is removed. To release the steering wheel, insert the
key again and turn it towards the front of the vehicle.
Notice:Using a tool to force the key from the
ignition switch could cause damage or break the
key. Use the correct key and turn the key only with
your hand. Make sure the key is all the way in.
If it is, turn the steering wheel left and right while
you turn the key hard. If none of this works,
then your vehicle needs service.
B (ON):This position is where the key returns to after
you start your engine and release the key. The ignition
switch stays in ON when the engine is running. But even
when the engine is not running, you can use ON to
operate your electrical accessories and to display some
instrument panel warning lights.
C (START):This position starts the engine. When the
engine starts, release the key. The ignition switch
will return to ON for normal driving.
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Retained Accessory Power (RAP)
Your vehicle is equipped with a Retained Accessory
Power (RAP) feature that enables the radio, power
windows, windshield wipers, and accessory power outlet
to continue to work after the ignition key has been
turned to LOCK and removed from the ignition.
The radio, wipers and accessory power outlet will turn
off when the ignition key is turned to LOCK and
removed. By turning the radio back on, you will be able
to operate it, the windshield wipers, and the accessory
power outlet for up to one hour or until:
•The radio is turned off
•Either door is opened
The windows will also operate for 15 minutes or until
either door is opened.
Starting the Engine
Automatic Transmission
Move your shift lever to PARK (P) or NEUTRAL (N).
Your engine will not start in any other position — that is
a safety feature. To restart when you are already
moving, use NEUTRAL (N) only.
Notice:Do not try to shift to PARK (P) if your
vehicle is moving. If you do, you could damage the
transmission. Shift to PARK (P) only when your
vehicle is stopped.
Manual Transmission
The shift lever should be in neutral and the parking
brake engaged. Hold the clutch pedal to the floor and
start the engine. Your vehicle will not start if the
clutch pedal is not all the way down — that is a
safety feature.
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Starting Your Engine
1. With your foot off the accelerator pedal and the
parking brake firmly applied, 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.
Notice:Holding your key in START for longer than
15 seconds at a time will cause your battery to
be drained much sooner. And the excessive heat
can damage your starter motor. Wait about
15 seconds between each try to help avoid draining
your battery or damaging your starter.
2. If it does not start, wait about 15 seconds and
try again to start the engine by turning the
ignition key to START. Wait about 15 seconds
between each try.
When your engine has run about 10 seconds to
warm up, your vehicle is ready to be driven. Do not
run your engine at high speeds when it is cold.
If the weather is below freezing (32°F or 0°C),
let the engine run for a few minutes to warm up.
Notice: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
engine operates. Before adding electrical equipment,
check with your dealer. If you do not, your engine
might not perform properly.
Racing or Other Competitive Driving
See your warranty book before using your vehicle for
racing or other competitive driving.
Notice:If you use your vehicle for racing or other
competitive driving, the engine may use more
oil than it would with normal use. Low oil levels can
damage the engine. Be sure to check the oil level
often during racing or other competitive driving and
keep the level at or near the upper mark that
shows the proper operating range on the engine oil
dipstick. For information on how to add oil, see
Engine Oil on page 5-13.
Automatic Transmission Operation
There are several different
positions for your shift
lever. Push in the button
on top of the shift lever
when shifting into position.
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PARK (P):The engine can be started in this position.
This position prevents the rear wheels from turning
and so should be selected, together with the parking
brake, when leaving the vehicle.
{CAUTION:
It is dangerous to get out of your vehicle if the
shift lever is not fully in PARK (P) with the
parking brake rmly set. Your vehicle can roll.
Do not leave your vehicle when the engine is
running unless you have to. If you have left the
engine running, the vehicle can move suddenly.
You or others could be injured. To be sure your
vehicle will not move, even when you are on
fairly level ground, always set your parking
brake and move the shift lever to PARK (P). See
Shifting Into Park (P) (Automatic Transmission)
on page 2-24. If you are pulling a trailer, see
Towing a Trailer on page 4-34.Ensure the shift lever is fully in PARK (P) before starting
the engine. Your vehicle has an automatic transmission
shift lock control system. You must have your foot on the
regular brakes before you can shift from PARK (P) when
the ignition key is in ON. The vehicle will not shift from
PARK (P) if the button is pressed before the brake is
applied. If you cannot shift out of PARK (P), ease
pressure on the shift lever, push the shift lever all the way
into PARK (P), and release the shift lever button as you
maintain brake application. Then press the shift lever
button and move the shift lever into the desired gear.
SeeShifting Out of Park (P) (Automatic Transmission)
on page 2-25.
REVERSE (R):Use this gear to back up.
Notice:Shifting to REVERSE (R) while your vehicle
is moving forward could damage the transmission.
The repairs would not be covered by your warranty.
Shift to REVERSE (R) only after your vehicle is
stopped.
To rock your vehicle back and forth to get out of snow,
ice or sand without damaging your transmission,
seeIf Your Vehicle is Stuck in Sand, Mud, Ice or Snow
on page 4-28.
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NEUTRAL (N):In this position, your engine does not
connect with the wheels. To restart when you are
already moving, use NEUTRAL (N) only. Also, use
NEUTRAL (N) when your vehicle is being towed.
{CAUTION:
Shifting into a drive gear while your engine is
running at high speed is dangerous. Unless
your foot is rmly on the brake pedal, your
vehicle could move very rapidly. You could
lose control and hit people or objects. Do not
shift into a drive gear while your engine is
running at high speed.
Notice:Shifting out of PARK (P) or NEUTRAL (N)
with the engine running at high speed may damage
the transmission. The repairs would not be
covered by your warranty. Be sure the engine is not
running at high speed when shifting your vehicle.
DRIVE (D):This is the most effective position for normal
or freeway driving. This position gives maximum fuel
efficiency, as the transmission can choose the
appropriate gear (1 through 4) for the existing load and
driving conditions.THIRD (3):This position is also used for normal driving.
However, it offers more power and lower fuel economy
than DRIVE (D). Here are some times you might choose
THIRD (3) instead of DRIVE (D):
•When driving on hilly, winding roads.
•When towing a trailer, so there is less shifting
between gears.
•When going down a steep hill.
SECOND (2):This position gives you more power but
lower fuel economy than THIRD (3). You can use
SECOND (2) on hills. It can help control your speed as
you go down steep mountain roads, but then you
would also want to use your brakes off and on.
FIRST (1):This position gives you even more power but
lower fuel economy than SECOND (2). You can use it on
very steep hills, or in deep snow or mud. If the shift lever
is put in FIRST (1), the transmission will not shift into first
gear until the vehicle is going slowly enough.
Remember to move the shift lever back to DRIVE (D) so
that the transmission again upshifts into higher gears.
Even though the shift lever may be in FIRST (1), the
transmission does not select first gear until vehicle speed
is less that 35 mph (56 km/h).
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Manual Transmission Operation
This is the shift pattern for
the six-speed manual
transmission.
Here is how to operate your transmission:
FIRST (1):Press the clutch pedal and shift into
FIRST (1). Then slowly let up on the clutch pedal as
you press the accelerator pedal.
You can shift into FIRST (1) when you are going less
than 40 mph (64 km/h). If you come to a complete stop
and it is hard to shift into FIRST (1), put the shift
lever in NEUTRAL and let up on the clutch. Press the
clutch pedal back down. Then shift into FIRST (1).SECOND (2):Press the clutch pedal as you let up on
the accelerator pedal and shift into SECOND (2).
Then, slowly let up on the clutch pedal as you press the
accelerator pedal.
THIRD (3), FOURTH (4), FIFTH (5) and SIXTH (6):Shift
into THIRD (3), FOURTH (4), FIFTH (5) and SIXTH (6)
the same way you do for SECOND (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.
NEUTRAL:Use this position when you start or idle
your engine. Your shift lever is in NEUTRAL when it is
centered in the shift pattern, not in any gear.
REVERSE (R):To back up, press down the clutch
pedal and shift into REVERSE (R). Apply pressure to
get the lever past FIFTH (5) and SIXTH (6) into
REVERSE (R). Let up on the clutch pedal slowly while
pressing the accelerator pedal.
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Shift Speeds
{CAUTION:
If you skip a gear when you downshift, you
could lose control of your vehicle. You could
injure yourself or others. Do not shift down
more than one gear at a time when you
downshift.
This chart shows when to shift to the next gear for the
best fuel economy.
Manual Transmission Recommended
Shift Speeds
1to2 2to3 3to4 4to5 5to6
16 mph
(25 km/h)22 mph
(35 km/h)30 mph
(48 km/h)40 mph
(65 km/h)50 mph
(80 km/h)
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.
One to Four Shift Light
(Manual Transmission)
When this light comes on, you can only shift from
FIRST (1) to FOURTH (4) instead of FIRST (1) to
SECOND (2). The light will be displayed on the
instrument panel cluster and a message will be
displayed on the trip computer.
You must complete the shift into FOURTH (4) to turn
off this feature. This helps you get the best possible
fuel economy.Instrument Panel
Cluster
Trip Computer
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After shifting to FOURTH (4), you may downshift to a
lower gear if you prefer.
Notice:Forcing the shift lever into any gear except
FOURTH (4) when the 1 TO 4 SHIFT light comes
on may damage the transmission. Shift only from
FIRST (1) to FOURTH (4) when the light comes on.
This light will come on when:
•The engine coolant temperature is higher than
169°F (76°C),
•you are going 15 to 19 mph (24 to 31 km/h) and
•you are 21 percent throttle or less.
SeeOne-to-Four Shift Light (Manual Transmission) on
page 3-26andTrip Computer on page 3-33for more
information.
Parking Brake
To set the parking brake, pull up on the parking brake
handle without pressing the release button. If the ignition
is on, the brake system warning light will come on.
SeeBrake System Warning Light on page 3-27.
To release the parking brake, hold the regular brake
pedal down. Pull the parking brake handle up until you
can press the release button. Hold the release button
in as you move the brake handle all the way down.
Notice:Driving with the parking brake on can
overheat the brake system and cause premature
wear or damage to brake system parts. Verify that
the parking brake is fully released and the brake
warning light is off before driving.
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