2003 CHEVROLET EXPRESS CARGO VAN radiator cap

{CAUTION:
Steam and scalding liquids from a hot cooling
system can blow out and burn you badly. They
are under pressure, and if you turn the radiator
pressure cap Ð even a little Ð they can come
out at high speed. Never turn the cap when the
cooling system, including the radiator pressure
cap, is hot. Wait for the cooling system and
radiator pressure cap to cool if you ever have
to turn the pressure cap.
5-30

How to Add Coolant to the Radiator
1. You can remove the radiator pressure cap when
the cooling system, including the radiator pressure
cap and upper radiator hose, is no longer hot.
Turn the pressure cap slowly counterclockwise until
it ®rst stops. (Don't press down while turning the
pressure cap.)
If you hear a hiss, wait for that to stop. A hiss
means there is still some pressure left.2. Then keep turning the pressure cap, but now push
down as you turn it. Remove the pressure cap.
5-31

3. Fill the radiator with the proper DEX-COOLž
coolant mixture, up to the base of the ®ller
neck. SeeEngine Coolant on page 5-21for more
information about the proper coolant mixture.4. Then ®ll the coolant recovery tank to the COLD
FILL mark.
5. Put the cap back on the coolant recovery tank, but
leave the radiator pressure cap off.
5-32

6. Start the engine and let it run until you can feel the
upper radiator hose getting hot. Watch out for the
engine cooling fan.
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.
5-33

Passenger Vans with an Air Bag Off Switch........1-46
Passenger Vans without an Air Bag Off
Switch.......................................................1-45
Passing.................................................4-11, 4-42
Passlock
ž......................................................2-19
Payload.....................................................4-30, ii
Plan Ahead When Possible................................ 7-7
Playing a Cassette Tape..................................3-54
Playing a Compact Disc..................3-46, 3-57, 3-65
Playing a Speci®c Loaded
Compact Disc.............................................3-67
Playing the Radio...................3-41, 3-44, 3-48, 3-59
Power Steering................................................ 4-8
Power...........................................................3-18
Accessory Outlets........................................3-18
Door Locks.................................................. 2-8
Seat............................................................ 1-4
Steering Fluid.............................................5-34
Windows....................................................2-17
Primary Radio Controls....................................3-71
Q
Questions and Answers About Safety Belts.........1-14
R
Radiator Pressure Cap....................................5-24
Radio Messages.............................3-43, 3-46, 3-54
Radios..........................................................3-40
AM-FM Radio.............................................3-41
Care of Your Cassette Tape Player................3-74
Care of Your CD Player...............................3-75
Care of Your CDs........................................3-75
Radio with Cassette and CD.........................3-48
Radio with CD............................................3-44
Radio with Six-Disc CD................................3-59
Rear Seat Audio..........................................3-71
Setting the Time for Radios with Radio Data
Systems (RDS)........................................3-41
Setting the Time for Radios without Radio
Data Systems (RDS)................................3-40
Theft-Deterrent............................................3-73
Understanding Reception..............................3-73
RDS Messages......................................3-53, 3-64
Reading Lamps..............................................3-17
Rear Air Conditioning and Heating System.........3-21
Rear Axle......................................................5-47
Locking........................................................ 4-8
Service......................................................6-17
11