2003 CHEVROLET VENTURE cooling

6. Start the engine and let it run until you can feel the
upper radiator hose getting hot. Watch out for the
engine cooling fans.
7. By this time, the coolant level inside the radiator
®ller neck may be lower. If the level is lower, add
more of the proper DEX-COOL
žcoolant mixture
through the ®ller neck until the level reaches
the base of the ®ller neck.8. Then replace the pressure cap. At any time during
this procedure if coolant begins to ¯ow out of the
®ller neck, reinstall the pressure cap. Be sure
the arrows on the pressure cap line up with the
vent tube.
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.
See
Changing a Flat Tire on page 5-71for more
information.
Used Replacement Wheels
{CAUTION:
Putting a used wheel on your vehicle is
dangerous. You can't know how it's been used
or how far it's been driven. It could fail
suddenly and cause a crash. If you have to
replace a wheel, use a new GM original
equipment wheel.
Tire Chains
Notice:Use tire chains only where legal and only
when you must. Use only SAE Class ªSº type chains
that are the proper size for your tires. Install them
on the front tires and tighten them as tightly as
possible with the ends securely fastened. Drive
slowly and follow the chain manufacturer's
instructions. If you can hear the chains contacting
your vehicle, stop and retighten them. If the contact
continues, slow down until it stops. Driving too
fast or spinning the wheels with chains on will
damage your vehicle.
5-67

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

Maintenance Schedule......................................6-2
Introduction...................................................6-2
Your Vehicle and the Environment....................6-2
Maintenance Requirements..............................6-2
How This Section is Organized.........................6-3
Part A: Scheduled Maintenance Services...........6-4
Using Your Maintenance Schedule....................6-4
Scheduled Maintenance...................................6-5
Part B: Owner Checks and Services................6-10
At Each Fuel Fill..........................................6-10
At Least Once a Month.................................6-10
At Least Twice a Year...................................6-11At Least Once a Year...................................6-12
Part C: Periodic MaintenanceInspections.........6-15
Steering, Suspension and Front Drive Axle
Boot and Seal Inspection............................6-15
Exhaust System Inspection............................6-15
Fuel System Inspection..................................6-16
Engine Cooling System Inspection...................6-16
Throttle System Inspection.............................6-16
All-Wheel Drive Inspection..............................6-16
Brake System Inspection................................6-16
Part D: Recommended Fluids and Lubricants. . . .6-17
Part E: Maintenance Record...........................6-19
Section 6 Maintenance Schedule
6-1

82,500 Miles (137 500 km)
qRotate tires. SeeTire Inspection and Rotation on
page 5-62for proper rotation pattern and additional
information.(See footnote +.)
90,000 Miles (150 000 km)
qReplace passenger compartment air ®lter. If you
drive regularly under dusty conditions, the ®lter
may require replacement more often.
qReplace engine air cleaner ®lter. See
Engine Air
Cleaner/Filter on page 5-18for more information.An Emission Control Service.
qRotate tires. SeeTire Inspection and Rotation on
page 5-62for proper rotation pattern and additional
information.(See footnote +.)
97,500 Miles (162 500 km)
qRotate tires. SeeTire Inspection and Rotation on
page 5-62for proper rotation pattern and additional
information.(See footnote +.)
100,000 Miles (166 000 km)
qInspect spark plug wires.An Emission Control
Service.
qReplace spark plugs.An Emission Control Service.
qChange automatic transaxle ¯uid and ®lter if the
vehicle is mainly driven under one or more of
these conditions:
þ In heavy city traffic where the outside
temperature regularly reaches 90ÉF (32ÉC) or
higher.
þ In hilly or mountainous terrain.
þ When doing frequent trailer towing.
þ Uses such as found in taxi, police or delivery
service.
qIf you haven't used your vehicle under severe service
conditions listed previously and, therefore, haven't
changed your automatic transaxle ¯uid, change both
the ¯uid and ®lter.
150,000 Miles (240 000 km)
qDrain, ¯ush and re®ll cooling system (or every
60 months since last service, whichever occurs ®rst).
See
Engine Coolant on page 5-23for what to use.
Inspect hoses. Clean radiator, condenser, pressure
cap and neck. Pressure test the cooling system
and pressure cap.
An Emission Control Service.
qInspect engine accessory drive belt.An Emission
Control Service.
6-9

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,
®ttings 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.
Throttle System Inspection
Inspect the throttle system for interference or binding,
and for damaged or missing parts. Replace parts
as needed. Replace any components that have high
effort or excessive wear. Do not lubricate accelerator
and cruise control cables.
All-Wheel Drive Inspection
Inspect the transfer case (power transfer unit) and
carrier assembly-differential (rear drive module) every
12 months or at engine oil change intervals, check rear
differential and transfer case and add lubricant when
necessary. A ¯uid loss could indicate a problem; check
and have it repaired, if needed. Check vent hoses at
transfer case and differential for kinks and proper
installation.
Brake System Inspection
Inspect the complete system. Inspect brake lines and
hoses for proper hook-up, binding, leaks, cracks,
cha®ng, 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.
6-16

Cleaning Glass Surfaces..................................5-89
Cleaning Interior Plastic Components.................5-89
Cleaning Leather............................................5-89
Cleaning the Top of the Instrument Panel...........5-89
Cleaning Tires................................................5-92
Cleaning Vinyl................................................5-89
Cleaning Windshield, Backglass and
Wiper Blades..............................................5-92
Cleaning........................................................5-87
Inside of Your Vehicle..................................5-87
Outside of Your Vehicle................................5-90
Underbody Maintenance...............................5-93
Video Screen............................................3-105
Weatherstrips..............................................5-90
Your DVD Player.......................................3-105
Climate Control System...................................3-25
Air Filter, Passenger Compartment.................3-33
Outlet Adjustment........................................3-28
Rear..................................................3-29, 3-31
Compact Disc Messages.................3-71, 3-81, 3-92
Compact Overhead Console.............................2-52
Compact Spare Tire........................................5-86
Compass Variance..........................................3-59
Content Theft-Deferrent....................................2-27
Content Theft-Deterrent System,
Arming and Disarming..................................2-68
Content Theft-Deterrent System........................2-67Control of a Vehicle.......................................... 4-5
Convenience Center........................................2-58
Convenience Net............................................2-57
Coolant.........................................................3-44
Engine Temperature Gage............................3-44
Engine Temperature Warning Message...........3-51
Heater, Engine............................................2-33
Cooling System..............................................5-29
Cruise Control................................................3-11
Cupholder(s)..................................................2-51
Current and Past Model Order Forms................7-11
Customer Assistance Information........................ 7-7
Courtesy Transportation.................................. 7-7
Customer Assistance for Text Telephone
(TTY) Users.............................................. 7-4
Customer Assistance Offices........................... 7-4
Customer Satisfaction Procedure..................... 7-2
GM Mobility Program for Persons with
Disabilities................................................ 7-5
Reporting Safety Defects to General Motors....7-10
Reporting Safety Defects to the Canadian
Government............................................7-10
Reporting Safety Defects to the United
States Government.................................... 7-9
Roadside Assistance Program......................... 7-6
Service Publications Ordering Information........7-10
4

Electrical System (cont.)
Power Windows and Other Power Options......5-96
Windshield Wiper Fuses...............................5-96
Emissions Inspection and Maintenance
Programs...................................................3-48
Engine Coolant Level Check.............................6-10
Engine Oil Additives........................................5-17
Engine Oil and Chassis Lubrication
Scheduled Maintenance................................. 6-6
Engine Oil Level Check...................................6-10
Engine Speci®cations.....................................5-104
Engine..........................................................5-18
Air Cleaner/Filter.........................................5-18
Battery.......................................................5-43
Change Oil Message...................................3-54
Check and Service Engine Soon Light............3-45
Compartment Overview................................5-12
Coolant Heater............................................2-33
Coolant Temperature Gage...........................3-44
Coolant Temperature Warning Message..........3-51
Coolant......................................................5-23
Cooling System Inspection............................6-16
Exhaust.....................................................2-42
Low Oil Level Message................................3-53
Oil .............................................................5-13
Overheating................................................5-26
Starting......................................................2-32
Entering Programming Mode............................2-62
Entertainment System......................................3-92
Cleaning the Video Screen..........................3-105Entertainment System (cont.)
Cleaning Your DVD Player..........................3-105
DVD Distortion..........................................3-103
Entry Lighting.................................................3-18
Erasing HomeLink
žButtons..............................2-50
Exit Lighting...................................................3-19
Exiting Programming Mode...............................2-70
Express-Down Window....................................2-25
Extender, Safety Belt.......................................1-54
Exterior Lamps...............................................3-15
F
Filter.............................................................5-18
Engine Air Cleaner......................................5-18
Finding a PTY Station.....................3-68, 3-75, 3-85
Finding a Station....................3-62, 3-65, 3-73, 3-82
Finish Care....................................................5-91
Finish Damage...............................................5-93
Fixed Mast Antenna.......................................3-105
Flash-to-Pass................................................... 3-9
Flat Tire, Changing.........................................5-71
Flat Tire........................................................5-70
Flip and Fold Rear Seats.................................. 1-7
Fluid.............................................................5-20
Automatic Transaxle.....................................5-20
Power Steering...........................................5-37
Windshield Washer......................................5-38
FM ..............................................................3-104
6