radiator cap CHEVROLET AVEO 2008 1.G Owners Manual

Checking Coolant
The engine coolant surge tank is located in the rear of
the engine compartment on the driver’s side of the
vehicle. SeeEngine Compartment Overview on
page 5-12for more information on location.
{CAUTION:
Turning the surge tank pressure cap when the
engine and radiator are hot can allow steam and
scalding liquids to blow out and burn you badly.
Never turn the surge tank pressure cap — even
a little — when the engine and radiator are hot.
To check the engine coolant, the vehicle must be on a
level surface. When your engine is cold, the coolant
level should be between the Maximum (A) and
Minimum (B) marks on the coolant surge tank. The level
rises at engine operation temperature and drops
again when the engine cools down.
Adding Coolant
If you need more coolant, add the proper DEX-COOL®
coolant mixture at the coolant surge tank, but only
when the engine is cool. If the coolant surge tank is
empty, a special fill procedure is necessary. SeeEngine
Overheating on page 5-25for instructions on “How to
Add Coolant to the Coolant Surge Tank.”
5-24

{CAUTION:
An electric engine cooling fan under the hood
can start up even when the engine is not
running and can injure you. Keep hands,
clothing, and tools away from any underhood
electric fan.
If the coolant inside the coolant surge tank is boiling,
do not do anything else until it cools down. To check the
engine coolant, the vehicle should be parked on a
level surface. Make sure that the air conditioning
is turned off.
The coolant level should be between the Minimum and
Maximum marks on the coolant surge tank when the
engine is cool. If it is not, you may have a leak at
the pressure cap or in the radiator hoses, heater hoses,
radiator, water pump, or somewhere else in the
cooling system.
{CAUTION:
Heater and radiator hoses, and other engine
parts, can be very hot. Do not touch them.
If you do, you can be burned.
Do not run the engine if there is a leak. If you
run the engine, it could lose all coolant. That
could cause an engine re, and you could be
burned. Get any leak xed before you drive
the vehicle.
If there seems to be no leak, with the engine on, check
to see if the electric engine cooling fan is running.
If the engine is overheating, the fan should be running.
If it is not, your vehicle needs service.
Notice:Engine damage from running the engine
without coolant is not covered by the warranty.
5-27

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.
5-29

3. Fill the coolant surge tank with the proper mixture
to the Maximum mark on the coolant surge tank.
Wait about five minutes, then check to see if
the level is below the mark. If the level is below the
Maximum mark, add additional coolant to bring
the level up to the mark. Repeat this procedure until
the level remains constant at the Maximum mark
for at least five 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 Maximum mark, add more of the proper mixture
to the coolant surge tank until the level reaches
the mark.
5. Then replace the pressure cap. Be sure the
pressure cap is hand-tight and fully seated.
See your dealer/retailer, if necessary.
Power Steering Fluid
When to Check Power Steering Fluid
The power steering fluid reservoir is located toward the
front of the engine compartment on the driver’s side
of the vehicle. SeeEngine Compartment Overview on
page 5-12for reservoir location.
It is not necessary to regularly check power steering
fluid unless you suspect there is a leak in the system or
you hear an unusual noise. A fluid loss in this system
could indicate a problem. Have the system inspected
and repaired.
5-30

3. Remove the headlamp assembly.
4. Disconnect the wiring harness connector from the
rear of the bulb.
5. Remove the headlamp cap.
6. Release the spring that retains the bulb.
7. Remove the old bulb.
8. Install the new bulb.
9. Install the bulb retaining spring.
10. Reverse Steps 1 through 6 to install the headlamp
assembly.Front Turn Signal and Parking
Lamps (Hatchback)
To replace a front turn signal or parking lamp bulb:
1. Remove the radiator grille and the headlamp
assembly. See Steps 2 through 5 underHeadlamps
(Hatchback) on page 5-41orHeadlamps (Sedan)
on page 5-42for instructions on how to remove the
headlamp assembly.
2. Turn the front turn signal bulb socket
counterclockwise.
5-43

90,000 Miles (150 000 km)
❑Change engine oil and filter (or every 3 months,
whichever occurs first).An Emission Control Service.
❑Replace passenger compartment air filter. If you
drive regularly under dusty conditions, the filter
may require replacement more often.
❑Replace engine air cleaner filter. SeeEngine Air
Cleaner/Filter on page 5-17for more information.
❑Rotate tires. SeeTire Inspection and Rotation on
page 5-61for proper rotation pattern and additional
information.(See footnote +.)
❑Replace spark plugs.An Emission Control Service.
❑Replace fuel filter.An Emission Control Service.
(See footnote †.)
❑Inspect drive belt(s).
❑Inspect EVAP canister, vapor lines, and EVAP
vent solenoid valve.An Emission Control Service.
(See footnote †.)
❑Inspect PCV system.An Emission Control Service.
(See footnote †.)
93,000 Miles (155 000 km)
❑Change engine oil and filter (or every 3 months,
whichever occurs first).An Emission Control Service.
96,000 Miles (160 000 km)
❑Change engine oil and filter (or every 3 months,
whichever occurs first).An Emission Control Service.
❑Rotate tires. SeeTire Inspection and Rotation
on page 5-61for proper rotation pattern and
additional information.(See footnote +.)
99,000 Miles (165 000 km)
❑Change engine oil and filter (or every 3 months,
whichever occurs first).An Emission Control Service.
150,000 Miles (240 000 km)
❑Drain, flush, and refill cooling system. This service
can be complex; you should have your dealer/retailer
perform this service. SeeEngine Coolant on
page 5-22for what to use. Inspect hoses. Clean
radiator, condenser, pressure cap, and neck.
Pressure test the cooling system and pressure cap.
An Emission Control Service.
6-12

90,000 Miles (150 000 km)
❑Change engine oil and filter (or every 12 months,
whichever occurs first).An Emission Control
Service.
❑Replace engine oil pan drain plug washer.
❑Replace passenger compartment air filter. If you
drive regularly under dusty conditions, the filter
may require replacement more often.
❑Replace engine air cleaner filter. SeeEngine Air
Cleaner/Filter on page 5-17for more information.
❑Rotate tires. SeeTire Inspection and Rotation on
page 5-61for proper rotation pattern and additional
information.(See footnote +.)
❑Replace spark plugs.An Emission Control Service.
❑Replace fuel filter.An Emission Control Service.
(See footnote †.)
❑Inspect drive belt(s).
❑Inspect EVAP canister, vapor lines and EVAP
vent solenoid valve.An Emission Control Service.
(See footnote †.)
❑Inspect PCV system.An Emission Control Service.
(See footnote †.)
97,500 Miles (162 500 km)
❑Change engine oil and filter (or every 12 months,
whichever occurs first).An Emission Control
Service.
❑Rotate tires. SeeTire Inspection and Rotation on
page 5-61for proper rotation pattern and additional
information.(See footnote +.)
150,000 Miles (240 000 km)
❑Drain, flush, and refill cooling system. This service
can be complex; you should have your dealer/retailer
perform this service. SeeEngine Coolant on
page 5-22for what to use. Inspect hoses. Clean
radiator, condenser, pressure cap, and neck.
Pressure test the cooling system and pressure cap.
An Emission Control Service.
6-17

Part C: Periodic Maintenance
Inspections
Listed in this part are inspections and services which
should be performed at least twice a year, for instance,
each spring and fall.You should let your dealer/retailer
do these jobs. Make sure any necessary repairs
are completed at once.
Proper procedures to perform these services can be
found in a service manual. SeeService Publications
Ordering Information on page 7-17.
Steering, Suspension and Front
Drive Axle Boot and Seal Inspection
Inspect the front and rear suspension and steering system
for damaged, loose or missing parts, signs of wear or lack
of lubrication. Inspect the power steering lines and hoses
for proper hook-up, binding, leaks, cracks, chafing, etc.
Clean and then inspect the drive axle boot seals for
damage, tears or leakage. Replace seals if necessary.
Exhaust System Inspection
Inspect the complete exhaust system. Inspect the body
near the exhaust system. Look for broken, damaged,
missing, or out-of-position parts as well as open seams,
holes, loose connections, or other conditions which could
cause a heat build-up in the floor pan or could let exhaust
fumes into the vehicle. SeeEngine Exhaust on page 2-30.
Fuel System Inspection
Inspect the complete fuel system for damage or leaks.
Engine Cooling System Inspection
Inspect the hoses and have them replaced if they
are cracked, swollen or deteriorated. Inspect all pipes,
fittings and clamps; replace as needed. Clean the
outside of the radiator and air conditioning condenser.
To help ensure proper operation, a pressure test of
the cooling system and pressure cap is recommended
at least once a year.
Brake System Inspection
Inspect the complete system. Inspect brake lines and
hoses for proper hook-up, binding, leaks, cracks, chafing,
etc. Inspect disc brake pads for wear and rotors for
surface condition. Also inspect drum brake linings for
wear and cracks. Inspect other brake parts, including
drums, wheel cylinders, calipers, parking brake, etc.
Check parking brake adjustment. You may need to have
your brakes inspected more often if your driving habits or
conditions result in frequent braking.
6-22