wheel torque CHEVROLET VENTURE 2003 1.G Owners Manual

All-Wheel Drive (AWD) System
If your vehicle has all-wheel drive (AWD), the AWD
system operates automatically without any action
required by the driver. If the front drive wheels begin to
slip, the rear wheels will automatically begin to drive
the vehicle as required. There may be a slight
engagement noise during hard use but this is normal.
During heavy AWD applications, the engine torque may
be reduced to protect AWD system components. If
the vehicle is exposed to extended heavy AWD usage,
the AWD system will shut itself off to protect the
system from overheating. When the system cools down,
the AWD system will activate itself again automatically;
this cool-down can take up to 20 minutes depending
on outside temperature and vehicle use. See
All-Wheel
Drive Disable Warning Message on page 3-57.
Steering
Power Steering
If you lose power steering assist because the engine
stops or the system is not functioning, you can steer but
it will take much more effort.
Steering Tips
Driving on Curves
It is important to take curves at a reasonable speed.
A lot of the ªdriver lost controlº accidents mentioned on
the news happen on curves. Here is why:
Experienced driver or beginner, each of us is subject to
the same laws of physics when driving on curves.
The traction of the tires against the road surface makes
it possible for the vehicle to change its path when
you turn the front wheels. If there is no traction, inertia
will keep the vehicle going in the same direction. If
you have ever tried to steer a vehicle on wet ice, you
will understand this.
The traction you can get in a curve depends on the
condition of your tires and the road surface, the angle at
which the curve is banked, and your speed. While
you are in a curve, speed is the one factor you
can control.
4-10

Brake Wear
Your vehicle has front disc brakes and may have rear
drum brakes or rear disc brakes.
Disc brake pads have built-in wear indicators that make
a high-pitched warning sound when the brake pads
are worn and new pads are needed. The sound
may come and go or be heard all the time your vehicle
is moving (except when you are pushing on the
brake pedal ®rmly).
{CAUTION:
The brake wear warning sound means that
soon your brakes will not work well. That
could lead to an accident. When you hear the
brake wear warning sound, have your vehicle
serviced.
Notice:Continuing to drive with worn-out brake
pads could result in costly brake repair.
Some driving conditions or climates may cause a brake
squeal when the brakes are ®rst 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 speci®cations.
If you have rear drum brakes, they do not have wear
indicators, but if you ever hear a rear brake rubbing
noise, have the rear brake linings inspected immediately.
Also, the rear brake drums should be removed and
inspected each time the tires are removed for rotation or
changing. When you have the front brake pads
replaced, have the rear brakes inspected, too.
Brake linings should always be replaced as complete
axle sets.
See
Brake System Inspection on page 6-16.
5-42

Tire Inspection and Rotation
Tires should be rotated every 7,500 miles (12 500 km).
Any time you notice unusual wear, rotate your tires
as soon as possible and check wheel alignment. Also
check for damaged tires or wheels. See
When It Is Time
for New Tires on page 5-63andWheel Replacement
on page 5-66for more information.
Make sure the spare tire is stored securely. Push, pull,
and then try to rotate or turn the tire, If it moves,
use the folding wrench to tighten the cable. See
Changing a Flat Tire on page 5-71.
The purpose of regular rotation is to achieve more
uniform wear for all tires on the vehicle. The ®rst rotation
is the most important. See ªPart A: Scheduled
Maintenance Services,º in Section 6, for scheduled
rotation intervals.When rotating your tires, always use the correct rotation
pattern shown here.
Don't include the compact spare tire in your tire rotation.
After the tires have been rotated, adjust the front and
rear in¯ation pressures as shown on the
Certi®cation/Tire label. Make certain that all wheel nuts
are properly tightened. See ªWheel Nut Torqueº
under
Capacities and Speci®cations on page 5-103.
{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 ªChanging a Flat
Tireº in the Index.
5-62

8. Lower the vehicle by attaching the folding wheel
wrench to the jack and turning the wrench
counterclockwise. Lower the jack completely.9. Tighten the wheel nuts
®rmly in a crisscross
sequence, as shown.
{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 speci®cation. See ªCapacities
and Speci®cationsº in the Index for wheel nut
torque speci®cation.
5-81

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 speci®cation. See ªCapacities and
Speci®cationsº in the index for the wheel nut torque
speci®cation.
10. Don't try to put a wheel cover on the compact spare
tire. It won't ®t. Store the wheel cover securely in
the rear of the vehicle until you have the ¯at
tire repaired or replaced.
Notice:Wheel covers will not ®t on your compact
spare. If you try to put a wheel cover on the compact
spare, you could damage the cover or the spare.
Storing a Flat or Spare 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.
{CAUTION:
The underbody-mounted spare tire needs to be
stored with the valve stem pointing down. If
the spare tire is stored with the valve stem
pointing upwards, its secondary latch won't
work properly and the spare tire could loosen
and suddenly fall from your vehicle. If this
happened when your vehicle was being driven,
the tire might contact a person or another
vehicle, causing injury and, of course, damage
to itself as well. Be sure the
underbody-mounted spare tire is stored with
its valve stem pointing down.
5-82

Capacities and Speci®cations
The following approximate capacities are given in English and metric measurements.
Please refer to
Part D: Recommended Fluids and Lubricants on page 6-17for more information.
ApplicationCapacities
English Metric
Air Conditioning Refrigerant Systems
Front A/C
Front and Rear A/C1.7 lbs.
2.2 lbs.0.8 kg
1.0 kg
Automatic Transaxle
Pan Removal and Replacement
Complete Overhaul7.4 quarts
10.0 quarts7.0 L
9.5 L
AWD Automatic Transaxle
Pan Removal and Replacement
Complete Overhaul8.7 quarts
10.8 quarts8.3 L
10.3 L
Cooling System
With A/C
With Rear Climate Control9.6 quarts
11.9 quarts9.1 L
11.3 L
Engine Oil with Filter 4.5 quarts 4.25 L
Fuel Capacity
Regular
Extended20.0 gallons
25.1 gallons75.0 L
95.0 L
Wheel Nut Torque 100 lb ft 140Y
5-103

T
Tachometer....................................................3-39
Taillamps.......................................................5-56
Turn Signal, Stoplamps and Back-up Lamps....5-56
TCS Warning Light..........................................3-43
Theft-Deterrent, Radio....................................3-103
Theft-Deterrent Systems...................................2-27
Content Theft-Deterrent................................2-27
PASS-Key
žIII Operation..............................2-29
PASS-KeyžIII .............................................2-29
Throttle System Inspection...............................6-16
Tilt Wheel........................................................ 3-7
Tire In¯ation Check.........................................6-10
Tires.............................................................5-60
Buying New Tires........................................5-64
Chains.......................................................5-67
Changing a Flat Tire....................................5-71
Compact Spare Tire.....................................5-86
If a Tire Goes Flat.......................................5-70
In¯ation -- Tire Pressure...............................5-61
Inspection and Rotation................................5-62
Uniform Tire Quality Grading.........................5-65
Wheel Alignment and Tire Balance.................5-66
Wheel Replacement.....................................5-66
When It Is Time for New Tires......................5-63
To Use the Engine Coolant Heater....................2-34
Top Strap Anchor Location...............................1-67
Top Strap......................................................1-66
Torque Lock...................................................2-41Total Weight on Your Vehicle's Tires..................4-38
Towing..........................................................4-32
Recreational Vehicle.....................................4-32
Towing a Trailer..........................................4-36
Your Vehicle...............................................4-32
Traction.........................................................3-51
Active Message...........................................3-51
Control System (TCS).................................... 4-8
Control System Warning Light.......................3-43
Service Traction System Warning Message.....3-50
Trailer Brakes.................................................4-39
Trailer Wiring Harness.....................................4-43
Transaxle Operation, Automatic.........................2-34
Transaxle.......................................................5-20
Fluid, Automatic...........................................5-20
Transfer Case (Power Transfer Unit)..................5-50
Transmission, Transaxle, Transfer Case Unit
Repair Manual............................................7-10
Transportation Options...................................... 7-8
Trip Computer................................................3-60
Turn and Lane-Change Signals.......................... 3-8
Turn Signal/Multifunction Lever........................... 3-7
Turn Signals When Towing a Trailer..................4-41
U
Ultrasonic Rear Parking Assist (URPA)...............3-22
Underbody Flushing Service.............................6-14
Underhood Fuse Block...................................5-100
16