2004 CHEVROLET EPICA wheel torque

Some driving conditions or climates may cause a brake
squeal when the brakes are first applied or lightly
applied. This does not mean something is wrong with
your brakes.
Properly torqued wheel nuts are necessary to help
prevent brake pulsation. When tires are rotated, inspect
brake pads for wear and evenly tighten wheel nuts in
the proper sequence to GM torque specifications.
Brake linings should always be replaced as complete
axle sets.
SeeBrake System Inspection on page 6-23.
Brake Pedal Travel
See your dealer if the brake pedal does not return to
normal height, or if there is a rapid increase in
pedal travel. This could be a sign of brake trouble.
Brake Adjustment
Every time you apply your brakes, with or without the
vehicle moving, your brakes adjust for wear.
Replacing Brake System Parts
The braking system on a vehicle is complex. Its many
parts have to be of top quality and work well together if
the vehicle is to have really good braking. Your vehicle
was designed and tested with top-quality GM brake parts.
When you replace parts of your braking system — for
example, when your brake linings wear down and you
need new ones put in — be sure you get new approved
GM replacement parts. If you do not, your brakes may no
longer work properly. For example, if someone puts in
brake linings that are wrong for your vehicle, the balance
between your front and rear brakes can change — for the
worse. The braking performance you have come to
expect can change in many other ways if someone puts
in the wrong replacement brake parts.
5-34

After the tires have been rotated, adjust the front and
rear inflation pressures as shown on the tire and loading
information label. Make certain that all wheel nuts are
properly tightened. See “Wheel Nut Torque” under
Capacities and Specifications on page 5-85.
{CAUTION:
Rust or dirt on a wheel, or on the parts to
which it is fastened, can make wheel nuts
become loose after a time. The wheel could
come off and cause an accident. When you
change a wheel, remove any rust or dirt from
places where the wheel attaches to the vehicle.
In an emergency, you can use a cloth or a
paper towel to do this; but be sure to use a
scraper or wire brush later, if you need to,
to get all the rust or dirt off. See “Changing
a Flat Tire” in the Index.
When It Is Time for New Tires
One way to tell when it’s
time for new tires is to
check the treadwear
indicators, which will
appear when your tires
have only 1/16 inch
(1.6 mm) or less of tread
remaining.
You need a new tire if any of the following statements
are true:
•You can see the indicators at three or more
places around the tire.
•You can see cord or fabric showing through the
tire’s rubber.
•The tread or sidewall is cracked, cut or snagged
deep enough to show cord or fabric.
•The tire has a bump, bulge or split.
•The tire has a puncture, cut or other damage that
can’t be repaired well because of the size or
location of the damage.
5-55

{CAUTION:
Incorrect wheel nuts or improperly tightened
wheel nuts can cause the wheel to come loose
and even come off. This could lead to an
accident. Be sure to use the correct wheel
nuts. If you have to replace them, be sure to
get new GM original equipment wheel nuts.
Stop somewhere as soon as you can and have
the nuts tightened with a torque wrench to the
proper torque specication. See “Capacities
and Specications” in the Index for wheel nut
torque specication.
Notice:Improperly tightened wheel nuts can lead
to brake pulsation and rotor damage. To avoid
expensive brake repairs, evenly tighten the wheel
nuts in the proper sequence and to the proper torque
specication. See “Capacities and Specications”
in the index for the wheel nut torque specication.
Storing the Flat Tire and Tools
{CAUTION:
Storing a jack, a tire, or other equipment in the
passenger compartment of the vehicle could
cause injury. In a sudden stop or collision,
loose equipment could strike someone. Store
all these in the proper place.
Store the flat tire in the spare tire compartment. Place
the tire in the compartment, then secure the retainer.
Store the jack in its foam tray in the trunk. Store
the tools securely in the trunk. Replace the trim cover.
5-67

Capacities and Specications
The following approximate capacities are given in English and metric conversions. Please refer to
Part D: Recommended Fluids and Lubricants on page 6-24for more information.
ApplicationCapacities
English Metric
Air Conditioning Refrigerant R134a 1.6 lbs 0.73 kg
Brake Fluid 0.5 quarts 0.5 L
Cooling System 8.5 quarts 8.0 L
Engine Oil with Filter 6.8 quarts 6.4 L
Fuel Tank 17.2 gallons 65.0 L
Transaxle, Automatic
Complete Overhaul 7.8 quarts 7.4 L
Wheel Nut Torque 81 lb ft 110Y
All capacities are approximate. When adding, be sure to fill to the appropriate level, as recommended in
this manual.
Engine Specications
Engine VIN Code Transaxle Spark Plug Gap
2.5L L6 (LBK) L Automatic 0.03 inch (0.8 mm)
5-85

T
Tachometer....................................................3-32
Taillamps
Turn Signal, Stoplamps and Back-up Lamps......5-46
TCS Active Light.............................................3-38
TCS Warning Light..........................................3-37
Theft-Deterrent, Radio.....................................3-58
Theft-Deterrent System....................................2-15
Theft-Deterrent Systems...................................2-15
Immobilizer.................................................2-17
Immobilizer Operation...................................2-17
Throttle System Inspection...............................6-23
Tilt Wheel........................................................ 3-7
Tire Inflation Check.........................................6-18
Tire Sidewall Labeling......................................5-48
Tire Size.......................................................5-50
Tire Terminology and Definitions........................5-50
Tires.............................................................5-48
Buying New Tires........................................5-56
Chains.......................................................5-60
Changing a Flat Tire....................................5-62
If a Tire Goes Flat.......................................5-61
Inflation - Tire Pressure................................5-53
Inspection and Rotation................................5-54
Spare Tire..................................................5-68
Uniform Tire Quality Grading.........................5-57
Wheel Alignment and Tire Balance.................5-58Tires (cont.)
Wheel Replacement.....................................5-59
When It Is Time for New Tires......................5-55
To Use the Engine Coolant Heater....................2-21
Top Strap......................................................1-37
Top Strap Anchor Location...............................1-39
Torque Lock...................................................2-28
Towing
Recreational Vehicle.....................................4-29
Towing a Trailer..........................................4-35
Your Vehicle...............................................4-29
Traction
Control System Active Light..........................3-38
Control System (TCS).................................... 4-8
Control System Warning Light.......................3-37
Transaxle
Fluid, Automatic...........................................5-19
Transaxle Operation, Automatic.........................2-22
Transmission, Transaxle, Transfer Case Unit
Repair Manual............................................7-12
Transportation Options...................................... 7-8
Trip Odometer................................................3-32
Trunk............................................................2-11
Trunk Ajar Light..............................................3-47
Trunk Lamp...................................................3-16
Trunk-Mounted CD Changer.............................3-55
Turn and Lane-Change Signals.......................... 3-8
Turn Signal/Multifunction Lever........................... 3-7
14