cooling CHEVROLET OPTRA 5 2007 1.G User Guide
[x] Cancel search | Manufacturer: CHEVROLET, Model Year: 2007, Model line: OPTRA 5, Model: CHEVROLET OPTRA 5 2007 1.GPages: 422, PDF Size: 2.39 MB
Page 276 of 422

{CAUTION:
Adding only plain water to your cooling
system can be dangerous. Plain water, or
some other liquid such as alcohol, can
boil before the proper coolant mixture will.
Your vehicle’s coolant warning system is
set for the proper coolant mixture. With
plain water or the wrong mixture, your
engine could get too hot but you would
not get the overheat warning. Your engine
could catch re and you or others could
be burned. Use a 50/50 mixture of clean,
drinkable water and a proper coolant.Notice:In cold weather, water can freeze and
crack the engine, radiator, heater core and
other parts. Use the recommended coolant
and the proper coolant mixture.
{CAUTION:
You can be burned if you spill coolant on
hot engine parts. Coolant contains
ethylene glycol and it will burn if the
engine parts are hot enough. Do not spill
coolant on a hot engine.
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Page 277 of 422

1. You can remove the coolant surge tank
pressure cap when the cooling system,
including the coolant surge tank pressure cap
and upper radiator hose, is no longer hot.
Turn the pressure cap slowly counterclockwise
about two or two and one-half turns.
If you hear a hiss, wait for that to stop.
This will allow any pressure still left to be
vented out the discharge hose.
2. Then keep turning the pressure cap slowly,
and remove it.
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Page 278 of 422

3. Fill the coolant surge tank with the proper
mixture to the Maximum mark on the
coolant surge tank. Wait about five minutes,
then check to see if the level is below the
mark. If the level is below the Maximum mark,
add additional coolant to bring the level up
to the mark. Repeat this procedure until
the level remains constant at the Maximum
mark for at least five minutes.4. With the coolant surge tank pressure cap off,
start the engine and let it run until you can
feel the upper radiator hose getting hot.
Watch out for the engine cooling fan.
By this time, the coolant level inside the
coolant surge tank may be lower. If the level
is lower than the Maximum mark, add
more of the proper mixture to the coolant
surge tank until the level reaches the mark.
5. Then replace the pressure cap. Be sure the
pressure cap is hand-tight and fully seated.
See your dealer, if necessary.
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Page 322 of 422

Wheel Replacement
Replace any wheel that is bent, cracked, or badly
rusted or corroded. If wheel nuts keep coming
loose, the wheel, wheel bolts, and wheel
nuts should be replaced. If the wheel leaks air,
replace it (except some aluminum wheels,
which can sometimes be repaired). See your
dealer if any of these conditions exist.
Your dealer will know the kind of wheel you need.
Each new wheel should have the same
load-carrying capacity, diameter, width, offset and
be mounted the same way as the one it replaces.
If you need to replace any of your wheels,
wheel bolts, or wheel nuts, replace them only with
new GM original equipment parts. This way,
you will be sure to have the right wheel, wheel
bolts, and wheel nuts for your vehicle.{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.
SeeChanging a Flat Tire on page 324for more
information.
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Page 351 of 422

Fuses Usage
STOP LAMPS Stoplamps
DR/LCK Door Lock
MIR HTD Heated Mirror
FRT FOG Front Fog
ILLUM LTLicense Plate Lamp, Parking
Lamp Left
INJ Injector
ENG SNSREvaporative Emission (EVAP)
Canister Purge Solenoid, Heated
Oxygen Sensor (HO2S), Cooling
Fan Relay, CMP Sensor
LOW BEAM LT Headlamp Low-Beam Left
ILLUM RTIllumination Circuit, Parking
Lamp Right
LOW BEAM RT Headlamp Low-Beam Right
SPARE Spare
SPARE Spare
SPARE Spare
BATT PWR Battery Power
ABS Anti-lock Brake System
HVAC BLWR HVAC Blower
IGN 2 Ignition 2Fuses Usage
IGN 1 Ignition 1
FUSE PLR Fuse Puller
COOL FAN
LOWCooling Fan Low
DEFOG Defog
COOL FAN HI Cooling Fan High
PWR WNDW Power Window
Relays Usage
COOL FAN
LOWCooling Fan Low
FRT FOG Front Fog
ILLUM Illumination Relay
A/C CMPRSR Air Conditioning Compressor
HORN Horn
DEFOG Defog
FUEL PUMP Fuel Pump
MAIN Main Relay
COOL FAN HI Cooling Fan High
PWR WNDW Power Window
HEAD LAMPS Headlamp Relay
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