2006 CHEVROLET COBALT cooling

{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, heater core and other parts.
Use the recommended coolant and the proper
coolant mixture.
{CAUTION:
You can be burned if you spill coolant on hot
engine parts. Coolant contains ethylene glycol
and it will burn if the engine parts are hot
enough. Do not spill coolant on a hot engine.
1. You can remove the coolant surge tank pressure
cap when the cooling system, including the coolant
surge tank pressure cap and upper radiator
hose, is no longer hot. Turn the pressure cap slowly
counterclockwise about two or two and one-half
turns. If you hear a hiss, wait for that to stop. This
will allow any pressure still left to be vented out
the discharge hose.
2. Then keep turning the
pressure cap slowly,
and remove it.
5-35

3. Fill the coolant surge tank with the proper mixture,
to the COLD FILL line on the tank. Wait about
ve minutes, then check to see if the level is below
the COLD FILL line. If the level is below the line,
add additional coolant to bring the level up to
the line. Repeat this procedure until the level
remains constant at the COLD FILL line for at least
ve minutes.4. With the coolant surge tank pressure cap off, start
the engine and let it run until you can feel the upper
radiator hose getting hot. Watch out for the
engine cooling fan.
By this time, the coolant level inside the coolant
surge tank may be lower. If the level is lower than
the COLD FILL line, add more of the proper mixture
to the coolant surge tank until the level reaches
the COLD FILL line.
5. Then replace the pressure cap. Be sure the
pressure cap is hand-tight and fully seated.
See your dealer, if necessary.
2.0L L4 Supercharged Engine
If no coolant is visible in the coolant surge tank, you will
need to either see your dealer or refer to the Dealer
Service Manual for a special coolant service ll procedure
to ensure enough coolant is added. To purchase a
service manual, seeService Publications Ordering
Information on page 7-14.
5-36

{CAUTION:
Using the wrong replacement wheels, wheel
bolts, or wheel nuts on your vehicle can be
dangerous. It could affect the braking and
handling of your vehicle, make your tires lose
air and make you lose control. You could have
a collision in which you or others could be
injured. Always use the correct wheel, wheel
bolts, and wheel nuts for replacement.
Notice:The wrong wheel can also cause problems
with bearing life, brake cooling, speedometer or
odometer calibration, headlamp aim, bumper height,
vehicle ground clearance, and tire or tire chain
clearance to the body and chassis.
SeeChanging a Flat Tire on page 5-74for more
information.
Used Replacement Wheels
{CAUTION:
Putting a used wheel on your vehicle is
dangerous. You cannot know how it has been
used or how far it has been driven. It could fail
suddenly and cause a crash. If you have to
replace a wheel, use a new GM original
equipment wheel.
5-71

Fuses Usage
SPARES Spares
Blank Not Used
Blank Not Used
RDFG Rear Defogger
COOL/ FAN2 Cooling Fan 2
CRNK Starter
COOL/ FAN 1 Engine Cooling Fan
BCM3 Body Control Module 3
BCM2 Body Control Module 2
FOG LP Fog Lamps
HORN Horn
RH HI BEAM Passenger’s Side High Beam
LH HI BEAM Driver’s Side High Beam
RH LO BEAM Passenger’s Side Low Beam
LH LO BEAM Driver’s Side Low Beam
Blank Not Used
FUEL PMP Fuel PumpFuses Usage
EMISN Emissions
Blank Not Used
INJ Injectors
Blank Not Used
ABS Anti-lock Brake System
PCM/ECMPowertrain Control Module/Engine
Control Module
EPS Electric Power Steering
AIR PMP Air Pump
PRK LPS Park Lamps
WPR Windshield Wiper
IP IGN Ignition
A/C CLTCH Air Conditioning Clutch
AIR SOL Air Solenoid
ABS2 Anti-lock Brake System 2
PRK/NEUT Park, Neutral
ECM/TRANSEngine Control Module,
Transmission
5-102

Fuses Usage
BCK UP Back-Up Lamps
TRUNK/
OUTLETTrunk, Accessory Power Outlet
Blank Not Used
Blank Not Used
S BAND/
ONSTARAudio, OnStar
®
Blank Not Used
LTR Cigarette Lighter
MIR (S) Mirrors
HTD SEATS Heated Seats
CNSTR VENT Canister Vent
Relays Usage
RDFG Rear Defogger
COOL/ FAN2 Cooling Fan 2
WPR2 Windshield Wiper 2
CRNK Starter
COOL/ FAN1 Cooling Fan 1
FUEL PUMP Fuel Pump
WPR1 Windshield Wiper 1
PWR/TRN Powertrain
AIR PMP Air Pump
A/C CLTCH Air Conditioning Clutch
AIR SOL Air Solenoid
RUN/CRNK Run, Crank
5-103

Fuses Usage
SPARES Spares
Blank Not Used
Blank Not Used
RDFG Rear Defogger
COOL/ FAN2 Cooling Fan 2
CRNK Starter
COOL/ FAN 1 Engine Cooling Fan
BCM3 Body Control Module 3
BCM2 Body Control Module 2
FOG LP Fog Lamps
HORN Horn
RH LO BEAM Passenger’s Side Low Beam
LH LO BEAM Driver’s Side Low Beam
RH HI BEAM Passenger’s Side High Beam
LH HI BEAM Driver’s Side High Beam
Blank Not Used
FUEL PMP Fuel PumpFuses Usage
EMISN Emissions
Blank Not Used
INJ Injectors
Blank Not Used
ABS Anti-lock Brake System
PCM/ECMPowertrain Control Module/Engine
Control Module
EPS Electric Power Steering
Blank Not Used
PRK LPS Park Lamps
WPR Windshield Wiper
IP IGN Ignition
A/C CLTCH Air Conditioning Clutch
AFTRCOOL Aftercooler
ABS2 Anti-lock Brake System
PRK/NEUT Park, Neutral
ECM/TRANSEngine Control Module,
Transmission
5-105

Fuses Usage
BCK UP Back-Up Lamps
TRUNK/
OUTLETTrunk, Accessory Power Outlet
Blank Not Used
Blank Not Used
S BAND/
ONSTARAudio, OnStar
®
Blank Not Used
LTR Cigarette Lighter
MIR (S) Mirrors
HTD SEATS Heated Seats
CNSTR VENT Canister Vent
Relays Usage
RDFG Rear Defogger
COOL/ FAN2 Cooling Fan 2
WPR2 Windshield Wiper 2
CRNK Starter
COOL/ FAN1 Cooling Fan 1
FUEL PUMP Fuel Pump
WPR1 Windshield Wiper 1
COOL
SER/PARSeries/Parallel Cooling Fan
PWR/TRN Powertrain
A/C CLTCH Air Conditioning Clutch
AFTRCOOL Aftercooler Pump
RUN/CRNK Run, Crank
5-106

Capacities and Specications
The following approximate capacities are given in English and metric conversions. Please refer toRecommended
Fluids and Lubricants on page 6-12for more information.
ApplicationCapacities
English Metric
Air Conditioning Refrigerant R134a 0.9 lb 0.41 kg
Cooling System
2.0L L4 Engine Supercharged 7.4 qt 7.0 L
2.2L L4 Engine 6.8 qt 6.5 L
2.4L L4 Engine 7.4 qt 7.0L
Intercooler System 2.0L Engine 2.0 qt 1.9 L
Engine Oil with Filter
2.2L L4 and 2.4L L4 Engines 5.0 qt 4.7 L
2.0L L4 Engine Supercharged 6.0 qt 5.7 L
Fuel Tank 13.0 gal 49.2 L
Transaxle, Automatic (Complete Drain and Rell) 7.0 qt 6.6 L
Transaxle, Manual (Complete Drain and Rell)
2.2L L4 and 2.4L L4 Engines 1.7 qt 1.6 L
2.0L L4 Engine Supercharged 1.6 qt 1.5 L
Wheel Nut Torque 100 lb ft 140Y
All capacities are approximate. When adding, be sure to ll to the appropriate level, as recommended in this
manual.
5-107