fuel pressure CHEVROLET DURAMAX 2006 Owners Manual

When your engine is cold, let it run for a few minutes
before you move your vehicle. This lets oil pressure
build up. Your engine will sound louder when it’s cold.
Notice:If you are not in an idling vehicle and the
engine overheats, you would not be there to see the
overheated engine indication. This could damage
your vehicle. Do not let your engine run when you are
not in your vehicle.
Cold Weather Starting (Diesel Engine)
The following tips will help you get good starting in
cold weather.
Use the recommended engine oil when the outside
temperature drops below freezing. SeeEngine Oil on
page 5-21. When the outside temperature drops below
0° F (–18°C), use of the engine coolant heater is
recommended.
If you experience longer cranking times, notice an
unusual amount of exhaust smoke or are at higher
altitudes (over 7,000 ft. or 2 135 m), you may use your
engine coolant heater. SeeEngine Coolant Heater
on page 2-8.
SeeDiesel Fuel Requirements and Fuel System on
page 5-2for information on what fuel to use in cold
weather.
If Your Diesel Engine Won’t Start
If you’ve run out of fuel, look atRunning Out of Fuel
on page 5-11. SeeDiesel Fuel Requirements and Fuel
System on page 5-2.
If you’re not out of fuel, and your engine won’t start,
do this:
Turn your ignition key to RUN. Immediately after the wait
to start light goes off, turn the ignition key to START.
If the light doesn’t go off, wait a few seconds, then try
starting your engine again. See your dealer as soon
as you can for a starting system check.
If the light comes on and then goes off and you know your
batteries are charged, but your engine still won’t start,
your vehicle needs service.
If the light does not come on when the engine is cold,
your vehicle needs service.
If your batteries don’t have enough charge to start your
engine, see “Battery” in the owner’s manual Index.
Be sure you have the right oil for your engine, and that
you’ve changed the oil at the proper times. If you use
the wrong oil, your engine may be harder to start.
2-3
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Warning Lights, Gages and Indicators...............3-2
Instrument Panel Cluster.................................3-2
Malfunction Indicator Lamp..............................3-4
Oil Pressure Gage..........................................3-6
Wait to Start Light..........................................3-7Reduced Engine Power Light (Van Models Only) . . .3-7
Fuel Gage.....................................................3-8
Water in Fuel Warning Light (Van Models Only).....3-9
Driver Information Center (DIC)
(Pickup Models Only)....................................3-9
Section 3 Instrument Panel
3-1
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Diesel Fuel Requirements and Fuel System.......5-2
Diesel Engine Fuel.........................................5-2
What Fuel to Use...........................................5-3
Very Cold Weather Operation...........................5-5
Water in Fuel.................................................5-5
Water in Fuel Light Chart................................5-6
Running Out of Fuel.....................................5-11
Fuel Filter Replacement.................................5-12
Filling the Tank............................................5-15
Filling a Portable Fuel Container.....................5-17Checking Things Under the Hood....................5-18
Engine Compartment Overview.......................5-18
Engine Oil...................................................5-21
Engine Oil Life System..................................5-24
Engine Air Cleaner/Filter................................5-25
Automatic Transmission Fluid.........................5-29
Engine Coolant.............................................5-34
Radiator Pressure Cap..................................5-39
Coolant Surge Tank Pressure Cap..................5-39
Engine Overheating.......................................5-39
Cooling System............................................5-41
Capacities and Specications..........................5-50
Specification Charts......................................5-50
Section 5 Service and Appearance Care
5-1
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Van Models
When you decide it is safe to lift the hood, here is what
you will see:
A. Coolant Surge Tank
B. Coolant Surge Tank Pressure Cap
C. Engine Cooling Fan
If the coolant inside the coolant surge tank is boiling,
do not do anything else until it cools down.When the engine is cold,
the coolant level should
be at or above the
COLD FILL mark.
If it is not, you may have a leak at the pressure cap or in
the radiator hoses, heater hoses, radiator, water pump,
fuel operated heater (FOH) or somewhere else in the
cooling system.
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If no coolant is visible in the surge tank, add coolant
as follows:
{CAUTION:
Steam and scalding liquids from a hot cooling
system can blow out and burn you badly. They
are under pressure, and if you turn the coolant
surge tank pressure cap — even a little — they
can come out at high speed. Never turn the
cap when the cooling system, including the
coolant surge tank pressure cap, is hot. Wait
for the cooling system and coolant surge tank
pressure cap to cool if you ever have to turn
the pressure cap.
{CAUTION:
Adding only plain water to your cooling
system can be dangerous. Plain water, or
some other liquid such as alcohol, can boil
before the proper coolant mixture will. Your
vehicle’s coolant warning system is set for the
proper coolant mixture. With plain water or the
wrong mixture, your engine could get too hot
but you would not get the overheat warning.
Your engine could catch re and you or others
could be burned. Use a 50/50 mixture of clean,
drinkable water and DEX-COOL
®coolant.
Notice:In cold weather, water can freeze and crack
the engine, radiator, fuel operated heater (FOH),
heater core and other parts. Use the recommended
coolant and the proper coolant mixture.
5-48
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(n)Change clutch uid (or every 24 months, whichever
occurs rst).
(p)Change automatic transmission uid and external
transmission lter if the vehicle is mainly driven
under one or more of these conditions:
-In heavy city traffic where the outside temperature
regularly reaches 90°F (32°C) or higher.
-In hilly or mountainous terrain.
-When doing frequent trailer towing.
-Uses such as found in taxi, police, or delivery
service.
(q)Check vent hose at transfer case for kinks and
proper installation.
(r)Drain, ush, and rell cooling system. This service
can be complex; you should have your dealer perform
this service. See Engine Coolant on page 5-34 for
what to use. Inspect hoses. Clean radiator, condenser,
van model fuel operated heater (if equipped), pressure
cap, and ller neck. Pressure test the cooling system
and pressure cap. For van models, see Fuel Operated
Heater (FOH) (Van Models Only) on page 2-8.
(s)Visually inspect belt for fraying, excessive cracks,
or obvious damage. Replace belt if necessary.Owner Checks and Services
These owner checks and services should be performed
at the intervals specified to help ensure the safety,
dependability, and emission control performance of your
vehicle. Your GM Goodwrench
®dealer can assist you
with these checks and services.
Be sure any necessary repairs are completed at once.
Whenever any fluids or lubricants are added to your
vehicle, make sure they are the proper ones, as shown
inRecommended Fluids and Lubricants on page 6-15.
At Each Fuel Fill
It is important to perform these underhood checks at
each fuel ll.
Engine Oil Level Check
Check the engine oil level and add the proper oil if
necessary. SeeEngine Oil on page 5-21for further
details.
Notice:It is important to check your oil regularly
and keep it at the proper level. Failure to keep your
engine oil at the proper level can cause damage
to your engine not covered by your warranty.
6-11
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A
Automatic Transmission, Fluid...........................5-29
C
Canadian Owners................................................ ii
Capacities and Specifications
Specification Charts.....................................5-50
Coolant
Engine.......................................................5-34
Surge Tank Pressure Cap.............................5-39
Cooling System..............................................5-41
D
Diesel
Engine Fuel.................................................. 5-2
Filling a Portable Fuel Container....................5-17
Filling Your Tank..........................................5-15Diesel (cont.)
Fuel Requirements and Fuel System................ 5-2
Running Out of Fuel....................................5-11
Very Cold Weather Operation.......................... 5-5
Water in Fuel............................................... 5-5
Water in Fuel Light Chart............................... 5-6
What Fuel to Use.......................................... 5-3
Driver Information Center (DIC).......................... 3-9
E
Engine
Air Cleaner/Filter.........................................5-25
Compartment Overview................................5-18
Coolant......................................................5-34
Oil .............................................................5-21
Overheating................................................5-39
Reduced Power Light.................................... 3-7
Engine Coolant Heater...................................... 2-8
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F
Fuel
At Each Fuel Fill.........................................6-11
Diesel Engine............................................... 5-2
Diesel Requirements and Fuel System............. 5-2
Filling a Portable Fuel Container....................5-17
Filling Your Tank..........................................5-15
Filter Replacement.......................................5-12
Gage ........................................................... 3-8
Running Out of...........................................5-11
Water in Warning Light.................................. 3-9
What to Use ................................................. 5-3
Fuel Operated Heater (FOH).............................. 2-8
G
Gage
Fuel............................................................ 3-8
Oil Pressure................................................. 3-6
I
Instrument Panel Cluster................................... 3-2
L
Light
Reduced Engine Power.................................. 3-7
Water in Fuel Warning................................... 3-9
Lights
Malfunction Indicator Lamp............................. 3-4
Wait to Start................................................. 3-7
Water in Fuel Light Chart............................... 5-6
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M
Maintenance Schedule
At Each Fuel Fill.........................................6-11
At Least Once a Month................................6-12
At Least Once a Year..................................6-12
Introduction.................................................. 6-2
Maintenance Requirements............................. 6-2
Scheduled Maintenance................................. 6-4
Using.......................................................... 6-2
Your Vehicle and the Environment................... 6-2
Malfunction Indicator Lamp................................ 3-4
O
Oil, Engine.....................................................5-21
Oil Pressure Gage............................................ 3-6
Overheating, Engine........................................5-39
Owners, Canadian............................................... ii
P
Power
Reduced Engine Light.................................... 3-7
R
Radiator Pressure Cap....................................5-39
Reduced Engine Power Light............................. 3-7
Running Out of Fuel........................................5-11
S
Scheduled Maintenance..................................... 6-4
Specification Charts.........................................5-50
Starting the Diesel Engine................................. 2-2
Surge Tank Pressure Cap, Coolant....................5-39
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