2006 CHEVROLET KODIAK clutch

Starting the Gasoline Engine
The 8th digit of your Vehicle Identification Number (VIN)
shows the code letter for your engine. Use this number to
verify the type of engine in your vehicle. SeeVehicle
Identication Number (VIN) on page 5-91. Follow the
proper steps to start the engine.
To start a diesel engine, seeStarting the Diesel Engine
on page 2-15.
Automatic Transmission
Set the parking brake and move your shift lever to
NEUTRAL (N) or PARK (P), if so equipped. Your engine
will not start in any other position — that is a safety
feature.
Manual Transmission
Set the parking brake, shift to neutral NEUTRAL (N)
and hold the clutch pedal to the floor while starting the
engine.
Starter Motor Operation
•The starter motor will disengage if you release the
key or the engine reaches a predetermined engine
speed.
•To prevent overheating, the starter motor will
disengage after continuously operating for
15 seconds. You must release the key from the
start position to re-engage the starter.
•The starter motor will not engage if the engine is
already running.
•The starter motor will disengage if, after
two seconds, the starter pinion gear does not
engage the flywheel or there is no engine rpm signal
from the engine speed sensor.
2-13

Starting Your Engine
1. Without pushing the accelerator pedal, 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.
2. If the engine does not start in 10 seconds, push the
accelerator pedal all the way down and crank the
engine for five more seconds, unless it starts
sooner.
3. If your engine still will not start, or starts but then
stops, it could be flooded with too much gasoline.
Wait 15 seconds to let the starter motor cool down.
Do Steps 1 through 3 again.
When the engine starts, let go of the key and the
accelerator pedal.
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. Any resulting damage
would not be covered by your vehicle’s warranty.
If you ever need to have your vehicle towed, seeTowing
Your Vehicle on page 4-37.
Gasoline Engine Warm-Up
When you have started your engine, let it run for
20 or 30 seconds to warm up before you put a load on
the engine.
Drive at moderate speeds for the first 2 to 3 miles
(3.2 to 4.8 km), especially in cold weather. SeeHigh
Idle System on page 2-21.
Restarting the Gasoline Engine While
Moving (Automatic Transmission)
If you have to restart the engine while the vehicle is
moving, you will first have to shift to NEUTRAL (N). This
safety feature prevents starting the engine when the
transmission is in a drive gear.
Stopping the Gasoline Engine
Let your engine idle for a few seconds before turning it
off after you have finished driving your vehicle.
If you shift to NEUTRAL (N) or PARK (P), set the
parking brake.
If your vehicle has a two-speed axle, put the range
selector in low. To be sure the axle has shifted into low,
engage the clutch and transmission; the vehicle may
move slightly when you do this.
2-14

While your engine is idling and before you turn it off,
you can make a list of any operational or handling
concerns to give to responsible maintenance personnel
so they can handle them right away.
Moisture will condense in a fuel tank that is almost
empty if the engine has not run for a while, even just
overnight under some conditions. So, it is always best to
refuel your vehicle at the end of each run.
Starting the Diesel Engine
Your vehicle’s diesel engine starts differently than a
gasoline engine. Read the following pages to learn how
to start, restart, warm-up, and stop your diesel engine.
The information applies to both Caterpillar
®diesel
engine and DURAMAX®diesel engine unless otherwise
noted.
If you have a Caterpillar
®diesel engine, also refer to
your Caterpillar®diesel engine Operation & Maintenance
Manual for the starting procedure.
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
Move your shift lever to NEUTRAL and hold the clutch
pedal to the floor while starting the engine. Your
vehicle will not start if the clutch pedal is not all the way
down — that is a safety feature.
2-15

High Idle System
High Idle System with Switch
If your vehicle has this
feature, the manual high
idle switch is located in
the instrument panel
switchbank.
This system can be used to increase your engine idle
speed whenever the following conditions are met:
•The brake pedal is not pressed.
•The vehicle speed is below about 5 mph (8 km/h)
for vehicles with diesel engines. The vehicle must
not be moving and the accelerator must not be
pressed for vehicles with gasoline engines.
•If the vehicle has manual transmission the clutch
pedal is not pressed or, if the vehicle has the
automatic transmission it is in NEUTRAL (N) or
PARK (P).The manual high idle feature is activated by pressing
the switch on the instrument panel. When the switch is
pressed again, or any of the previous conditions are
not met, manual high idle will be deactivated.
The manual high idle has been preset at the factory.
Your dealer may change the setting to fit your needs.
For vehicles with Caterpillar
®diesel engines, the
high idle switch can be used to set any desired high
idle speed.
To set a new temporary engine idle speed do the
following:
1. Make sure all of the previously described conditions
are met.
2. Press the accelerator pedal to the desired engine
speed.
3. Momentarily press the manual high idle switch.
The temporary high idle speed will be set. This new high
idle rpm level will be remembered by the system until
either the ignition is turned to OFF or a new high
idle speed is set.
2-21

Automatic High Idle System
The automatic high idle feature will engage whenever
you start your vehicle and the engine is below the preset
operating temperature. This will help decrease engine
warm-up time.
On vehicles that have the Caterpillar
®diesel engine you
may have an exhaust restrictor that will operate in
High Idle mode. The exhaust brake switch must be on
for this feature to operate. SeeDiesel Engine Exhaust
Brake on page 2-27for more information.
Idle speed will then return to normal under any of the
following conditions:
•The engine reaches the preset operating
temperature or has been operating for at least
10 minutes.
•The brake pedal is pressed.
•The manual transmission clutch pedal is pressed
or, if the vehicle has automatic transmission, it is
shifted from NEUTRAL (N) or PARK (P).
•The vehicle speed exceeds about 5 mph (8 km/h).
•The throttle is pressed.
Exhaust Restrictor
(Engine Warm-Up)
Exhaust Restrictor
If your vehicle has a DURAMAX®7800 or Caterpillar®
diesel engine, it may have a feature called an Exhaust
Restrictor (NPE), which uses an air actuated valve
in the exhaust system to restrict exhaust gas flow which
enhances the engine and heater warm-up.
Automatic Quick Warm-Up
If your vehicle has with a DURAMAX®6600 engine, it
has a feature called an Automatic Quick Warm-Up,
which uses the turbocharger to restrict the exhaust gas
flow which enhances the engine and heater warm-up.
In both systems, exhaust restrictor or automatic
quick warm-up, the cold temperature high idle feature
elevates the engines idle speed, up to 1500 rpm,
and restricts the exhaust gas flow, when outside
temperatures are below 32°F (0°C), and the engine
coolant temperature is below certain levels. This feature
enhances heater performance by raising the engine
coolant temperature faster.
2-22

For all engines this feature is already turned on. The
automatic quick warm-up on the DURAMAX®engine
can be turned off and on by doing the following
procedure:
1. Turn the ignition to RUN, with the vehicle off.
2. Press the accelerator pedal to the floor and hold it
while quickly pressing and fully releasing the brake
pedal three times in less than eight seconds.
3. Release the accelerator pedal and start the engine.
The green exhaust brake/restrictor light below the
radio controls will be lit for 10 seconds.
If this feature is turned off, by doing the procedure
described previously, and then the engine is
started, the exhaust brake/restrictor light will flash
for 10 seconds and then it will turn off.
When the engine is started, it will slowly increase to the
high idle speed after a delay of a few seconds; up to
about two minutes. For this method to work properly
there must be no throttle or brake pedal faults, and the
throttle pedal must not fall below 75 percent of wide
open throttle while pressing the brake pedal.The engine idle speed will return to normal once the
following conditions are met:
•Once engine coolant temperature reaches about
150°F (65°C).
•The intake temperature reaches a certain level.
The high idle speed will be temporarily interrupted and
the engine speed will return to normal if any of the
following conditions occur:
•The brake pedal is applied.
•The accelerator pedal is pressed.
•The automatic transmission is shifted out of
PARK (P) or NEUTRAL (N).
•The clutch pedal on the manual transmission is
pressed.
•Vehicle speed is detected.
Once these conditions no longer exist, the engine
idle speed will slowly increase to high idle after the
normal delay, if the conditions for engine coolant
temperature and air intake temperature are still met.
2-23

Diesel Engine Exhaust Brake
If your vehicle has a DURAMAX®7800 or Caterpillar®
diesel engine, it may have an exhaust brake, which
is located in the exhaust system.
If your vehicle has a 6.6L DURAMAX
®6600 diesel
engine, it may have an exhaust brake, which is
controlled through the turbocharger.
The exhaust brake for both engines operates the same.
The exhaust brake switch
is located in the instrument
panel switchbank.
Push the bottom of the switch to turn the exhaust brake
on. When you push the top of the switch, the exhaust
brake will turn off.
There is an indicator light on the instrument panel
similar to the symbol on the switch, that will come on
when the exhaust brake is active. SeeExhaust
Brake Indicator Light on page 3-41for more information.When using the exhaust brake, the proper gear range
selection is important. The exhaust brake will be
most effective if the gear range selected is the lowest
possible range that does not allow the engine rpm to go
more than 200 rpm above rated (full load) rpm. If you
have a Caterpillar®diesel engine, do not exceed
2900 rpm. If you have a DURAMAX®7800 diesel
engine, do not exceed 2550 rpm. If you have a
DURAMAX
®6600 diesel engine, do not exceed
3600 rpm.
If your vehicle has an Allison
®1000/2200/2300/2500
series automatic transmission and press this button, the
transmission will downshift to a factory default setting
of third gear. To change the default setting, or for more
information on factory default settings, contact your
dealer for assistance.
The accelerator and clutch pedals must be released in
order for the exhaust brake to engage. The exhaust
brake will automatically shut off when the anti-lock brake
system is active.
If your vehicle has a Caterpillar
®diesel engine or a
DURAMAX®6600 diesel engine, the exhaust brake will
become active in cruise control when you exceed
the set speed by 3 to 5 mph.
2-27

Two-Speed Rear Axle Electric Shift
Control
If your vehicle has this feature, you will find a label on
the headliner above the windshield or in another
place near the driver that shows how to use it. Be sure
to follow the directions carefully.
Use the following directions based on the type of shift
control the vehicle has.
The rear axle shift control
switch for a manual
transmission is located on
the shift lever.
When the switch is down, the rear axle is in the high
range. When the switch is up the rear axle is in
low range. Push or pull the switch to change the range.The two-speed axle should be in the up position or low
range when you park the vehicle. You will need to
engage the transmission and move the vehicle a little to
assure the axle is in the low range. Then apply the
parking brake, shift into NEUTRAL and shut off
the engine.
Also, always start the vehicle in motion with the
two-speed axle in the low range.
To shift up from low to high, do the following:
1. Move the switch down for the high range.
2. Disengage the clutch.
3. After a brief pause, engage the clutch and then
press down on the accelerator pedal until the
axle engages.
To shift down from high to low, do the following:
1. Release the accelerator and pull the switch upward
for low range.
2. Press the accelerator pedal slowly until the axle
engages.
2-28