engine CHEVROLET AVEO 2007 1.G Workshop Manual

{CAUTION:
Snow can trap exhaust gases under your
vehicle. This can cause deadly CO
(carbon monoxide) gas to get inside. CO
could overcome you and kill you. You
cannot see it or smell it, so you might not
know it is in your vehicle. Clear away
snow from around the base of your
vehicle, especially any that is blocking the
exhaust pipe. And check around again
from time to time to be sure snow does
not collect there.
Open a window just a little on the side of
the vehicle that is away from the wind.
This will help keep CO out.Run your engine only as long as you must. This
saves fuel. When you run the engine, make it go a
little faster than just idle. That is, push the
accelerator slightly. This uses less fuel for the
heat that you get and it keeps the battery charged.
You will need a well-charged battery to restart
the vehicle, and possibly for signaling later on with
your headlamps. Let the heater run for a while.
Then, shut the engine off and close the window
almost all the way to preserve the heat. Start
the engine again and repeat this only when you
feel really uncomfortable from the cold. But do it as
little as possible. Preserve the fuel as long as
you can. To help keep warm, you can get out of
the vehicle and do some fairly vigorous exercises
every half hour or so until help comes.
247

If Your Vehicle is Stuck in Sand,
Mud, Ice, or Snow
In order to free your vehicle when it is stuck, you
will need to spin the wheels, but you do not
want to spin your wheels too fast. The method
known as rocking can help you get out when you
are stuck, but you must use caution.
{CAUTION:
If you let your vehicle’s tires spin at high
speed, they can explode, and you or
others could be injured. And, the
transaxle or other parts of the vehicle can
overheat. That could cause an engine
compartment re or other damage. When
you are stuck, spin the wheels as little as
possible. Do not spin the wheels above
35 mph (55 km/h) as shown on the
speedometer.
Notice:Spinning the wheels can destroy parts
of your vehicle as well as the tires. If you
spin the wheels too fast while shifting
the transaxle back and forth, you can destroy
the transaxle. SeeRocking Your Vehicle to
Get It Out on page 249.
For information about using tire chains on your
vehicle, seeTire Chains on page 335.
248

Service........................................................ 264
Accessories and Modifications................... 264
California Proposition 65 Warning.............. 265
Doing Your Own Service Work.................. 265
Adding Equipment to the Outside of
Your Vehicle.......................................... 266
Fuel............................................................. 266
Gasoline Octane........................................ 266
Gasoline Specifications.............................. 266
California Fuel........................................... 267
Additives................................................... 267
Fuels in Foreign Countries........................ 268
Filling the Tank......................................... 269
Filling a Portable Fuel Container............... 272
Checking Things Under the Hood.............. 273
Hood Release........................................... 274
Engine Compartment Overview.................. 276
Engine Oil................................................. 277
Engine Air Cleaner/Filter............................ 281
Automatic Transaxle Fluid......................... 283Manual Transaxle Fluid............................. 285
Hydraulic Clutch........................................ 286
Engine Coolant.......................................... 287
Coolant Surge Tank Pressure Cap............ 290
Engine Overheating................................... 290
Cooling System......................................... 292
Power Steering Fluid................................. 297
Windshield Washer Fluid........................... 298
Brakes...................................................... 299
Battery...................................................... 303
Jump Starting............................................ 304
Headlamp Aiming........................................ 309
Bulb Replacement....................................... 309
Halogen Bulbs........................................... 309
Headlamps (Hatchback)............................. 310
Headlamps (Sedan)................................... 311
Front Turn Signal and Parking Lamps
(Hatchback)............................................ 312
Front Turn Signal and Parking Lamps
(Sedan).................................................. 313
Section 5 Service and Appearance Care
261

Finish Damage.......................................... 352
Underbody Maintenance............................ 352
Chemical Paint Spotting............................ 352
Vehicle Care/Appearance Materials............ 353
Vehicle Identication.................................. 354
Vehicle Identification Number (VIN)........... 354
Service Parts Identification Label............... 354
Electrical System........................................ 355
Add-On Electrical Equipment..................... 355
Headlamp Wiring....................................... 355Windshield Wiper Fuses............................ 355
Power Windows and Other Power
Options.................................................. 356
Fuses and Circuit Breakers....................... 356
Instrument Panel Fuse Block..................... 357
Engine Compartment Fuse Block............... 361
Capacities and Specications.................... 368
Normal Maintenance Replacement Parts..... 369
Engine Drive Belt Routing......................... 370
Section 5 Service and Appearance Care
263

California Proposition 65 Warning
Most motor vehicles, including this one, contain
and/or emit chemicals known to the State of
California to cause cancer and birth defects or other
reproductive harm. Engine exhaust, many parts and
systems (including some inside the vehicle), many
fluids, and some component wear by-products
contain and/or emit these chemicals.
Doing Your Own Service Work
{CAUTION:
You can be injured and your vehicle could
be damaged if you try to do service work
on a vehicle without knowing enough
about it.
Be sure you have sufficient knowledge,
experience, the proper replacement
parts, and tools before you attempt any
vehicle maintenance task.
CAUTION: (Continued)
CAUTION: (Continued)

Be sure to use the proper nuts, bolts,
and other fasteners. English and
metric fasteners can be easily
confused. If you use the wrong
fasteners, parts can later break or fall
off. You could be hurt.
If you want to do some of your own service work,
you will want to use the proper service manual.
It tells you much more about how to service your
vehicle than this manual can. To order the
proper service manual, seeService Publications
Ordering Information on page 420.
Your vehicle has an airbag system. Before
attempting to do your own service work, see
Servicing Your Airbag-Equipped Vehicle on
page 82.
You should keep a record with all parts receipts
and list the mileage and the date of any service
work you perform. SeePart E: Maintenance
Record on page 398.
265

Adding Equipment to the Outside of
Your Vehicle
Things you might add to the outside of your
vehicle can affect the airflow around it. This may
cause wind noise and affect windshield washer
performance. Check with your dealer before
adding equipment to the outside of your vehicle.
Fuel
Use of the recommended fuel is an important part
of the proper maintenance of your vehicle. To
help keep the engine clean and maintain optimum
vehicle performance, GM recommends the use
of gasoline advertised as TOP TIER Detergent
Gasoline.
Gasoline Octane
Use regular unleaded gasoline with a posted
octane rating of 87 or higher. If the octane rating
is less than 87, you might notice an audible
knocking noise when you drive, commonly referred
to as spark knock. If this occurs, use a gasoline
rated at 87 octane or higher as soon as possible. If
you are using gasoline rated at 87 octane or
higher and you hear heavy knocking, the engine
needs service.
Gasoline Specications
At a minimum, gasoline should meet ASTM
specification D 4814 in the United States or
CAN/CGSB-3.5 in Canada. Some gasolines
may contain an octane-enhancing additive
called methylcyclopentadienyl manganese
tricarbonyl (MMT). General Motors recommends
against the use of gasolines containing MMT. See
Additives on page 267for additional information.
266

California Fuel
If your vehicle is certified to meet California
Emissions Standards, it is designed to operate on
fuels that meet California specifications. See
the underhood emission control label. If this fuel is
not available in states adopting California
emissions standards, your vehicle will operate
satisfactorily on fuels meeting federal
specifications, but emission control system
performance may be affected. The malfunction
indicator lamp may turn on and your vehicle may
fail a smog-check test. SeeMalfunction Indicator
Lamp on page 166for sedans orMalfunction
Indicator Lamp on page 180for hatchbacks. If this
occurs, return to your authorized GM dealer for
diagnosis. If it is determined that the condition is
caused by the type of fuel used, repairs may
not be covered by your warranty.
Additives
To provide cleaner air, all gasolines in the United
States are now required to contain additives
that will help prevent engine and fuel system
deposits from forming, allowing your emission
control system to work properly. In most cases,
you should not have to add anything to your fuel.
However, some gasolines contain only the
minimum amount of additive required to meet U.S.
Environmental Protection Agency regulations.
To help keep fuel injectors and intake valves clean,
or if your vehicle experiences problems due to
dirty injectors or valves, look for gasoline that is
advertised as TOP TIER Detergent Gasoline. Also,
your dealer has additives that will help correct
and prevent most deposit-related problems.
267

Filling the Tank
{CAUTION:
Fuel vapor burns violently and a fuel re
can cause bad injuries. To help avoid
injuries to you and others, read and follow
all the instructions on the pump island.
Turn off your engine when you are
refueling. Do not smoke if you are near
fuel or refueling your vehicle. Do not use
cellular phones. Keep sparks, ames, and
smoking materials away from fuel. Do not
leave the fuel pump unattended when
refueling your vehicle. This is against the
law in some places. Do not re-enter the
vehicle while pumping fuel. Keep children
away from the fuel pump; never let
children pump fuel.To open the fuel filler
door, pull up on the
release lever with this
symbol on it. It is
located on the floor on
the outboard side of
the driver’s seat.
269

Checking Things Under
the Hood
{CAUTION:
An electric fan under the hood can start up
and injure you even when the engine is not
running. Keep hands, clothing, and tools
away from any underhood electric fan.
{CAUTION:
Things that burn can get on hot engine
parts and start a re. These include
liquids like fuel, oil, coolant, brake uid,
windshield washer and other uids, and
plastic or rubber. You or others could be
burned. Be careful not to drop or spill
things that will burn onto a hot engine.
273

Engine Compartment Overview
When you open the hood, here is what you will see:
Automatic shown, Manual similar
276