heating CHEVROLET VENTURE 2003 1.G User Guide

Engine Coolant
The cooling system in your vehicle is ®lled with
DEX-COOLžengine coolant. This coolant is designed
to remain in your vehicle for 5 years or 150,000 miles
(240 000 km), whichever occurs ®rst, if you add
only DEX-COOL
žextended life coolant.
The following explains your cooling system and how to
add coolant when it is low. If you have a problem
with engine overheating, see
Engine Overheating on
page 5-26.
A 50/50 mixture of clean, drinkable water and
DEX-COOL
žcoolant will:
·Give freezing protection down to-34ÉF (-37ÉC).
·Give boiling protection up to 265ÉF (129ÉC).
·Protect against rust and corrosion.
·Help keep the proper engine temperature.
·Let the warning messages and gages work as they
should.
Notice:Using coolant other than DEX-COOLžmay
cause premature engine, heater core or radiator
corrosion. In addition, the engine coolant may
require changing sooner, at 30,000 miles (50 000 km)
or 24 months, whichever occurs ®rst. Any repairs
would not be covered by your warranty. Always use
DEX-COOL
ž(silicate-free) coolant in your vehicle.
5-23

Radiator Pressure Cap
Notice:The radiator cap on your vehicle is a
pressure-type cap and must be tightly installed to
prevent coolant loss and possible engine damage
from overheating. Be sure the arrows on the cap line
up with the over¯ow tube on the radiator ®ller neck.
The radiator pressure cap is located at the front of the
engine compartment on the passenger's side of the
vehicle. See
Engine Compartment Overview on
page 5-12for more information on location.
Engine Overheating
You will ®nd an engine coolant temperature gage on
your vehicle's instrument panel cluster. SeeEngine
Coolant Temperature Gage on page 3-44. You
also have an engine coolant temperature warning
message on your instrument panel. See
Engine Coolant
Temperature Warning Message on page 3-51.
Overheated Engine Protection
Operating Mode
This emergency operating mode allows your vehicle to
be driven to a safe place in an emergency situation.
If an overheated engine condition exists, an overheat
protection mode which alternates ®ring groups of
cylinders helps prevent engine damage. In this mode,
you will notice a signi®cant loss in power and engine
performance. The temperature gage will indicate
an overheat condition exists. Driving extended miles
(km) and/or towing a trailer in the overheat protection
mode should be avoided.
Notice:After driving in the overheated engine
protection operating mode, to avoid engine damage,
allow the engine to cool before attempting any
repair. The engine oil will be severely degraded.
Repair the cause of coolant loss, change the oil and
reset the oil life system. See ªEngine Oilº in the
Index.
5-26

The coolant level should be at or above the FULL
COLD mark. If it isn't, 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 fans are running.
If the engine is overheating, both fans should be
running. If they aren't, your vehicle needs service.
5-30

Tires
Your new vehicle comes with high-quality tires made by
a leading tire manufacturer. If you ever have questions
about your tire warranty and where to obtain service,
see your Chevrolet Warranty booklet for details.
{CAUTION:
Poorly maintained and improperly used tires
are dangerous.
·Overloading your tires can cause
overheating as a result of too much
friction. You could have an air-out and a
serious accident. See ªLoading Your
Vehicleº in the Index.
CAUTION: (Continued)
CAUTION: (Continued)
·
Underin¯ated tires pose the same danger
as overloaded tires. The resulting accident
could cause serious injury. Check all tires
frequently to maintain the recommended
pressure. Tire pressure should be checked
when your tires are cold.
·Overin¯ated tires are more likely to be
cut, punctured or broken by a sudden
impact Ð such as when you hit a pothole.
Keep tires at the recommended pressure.
·Worn, old tires can cause accidents. If
your tread is badly worn, or if your tires
have been damaged, replace them.
5-60

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