1999 CHEVROLET METRO radiator

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Cooling System
When you decide it's safe to lift the hood, here's what
you'll see:
1. Coolant Recovery Tank
2. Radiator Pressure Cap
3. Electric Engine Cooling Fan
CAUTION:
An electric engine cooling fan under the hood can
start up even when the engine is not running and
can injure you. Keep hands, clothing and tools
away from any underhood electric fan.
If the coolant inside the coolant recovery tank is boiling,
don't do anything else until it cools down.

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The coolant level should be at the FULL mark. If it
isn't, you may have a leak 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. Don't touch them. If you
do, you can be burned.
Don't run the engine if there is a leak. If you run
the engine, it could lose all coolant. That could
cause an engine fire, and you could be burned.
Get any leak fixed before you drive the vehicle.
NOTICE:
Engine damage from running your engine
without coolant isn't covered by your warranty.
If there seems to be no leak, with the engine on, check to
see if the electric engine cooling fan is running. If the
engine is overheating, the fan should be running. If it
isn't, your vehicle needs service.

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5-13 How to Add Coolant to the Coolant
Recovery Tank
If you haven't found a problem yet, but the coolant level
isn't at the FULL mark, add a 50/50 mixture of clean,
drinkable water and a proper coolant at the coolant
recovery tank. (See ªEngine Coolantº in the Index for
more information about the proper coolant mixture.)
CAUTION:
Adding only plain water to your cooling system
can be dangerous. Plain water, or some other
liquid like 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 wouldn't
get the overheat warning. Your engine could
catch fire 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.

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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. Don't spill coolant on a hot engine.
When the coolant in the coolant recovery tank is at the
FULL mark, start your vehicle.
If the overheat warning continues, there's one more
thing you can try. You can add the proper coolant
mixture directly to the radiator, but be sure the cooling
system is cool before you do it.

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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
-- even a little -- 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.

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5-16 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 first
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.

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3. Fill the radiator with the proper coolant mixture, up
to the base of the filler neck. (See ªEngine Coolantº
in the Index for more information about the proper
coolant mixture.)
4. Then fill the coolant recovery tank to the
FULL mark.
5. Put the cap back on the coolant recovery tank, but
leave the radiator pressure cap off.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
filler neck may be lower. If the level is lower, add
more of the proper coolant mixture through the filler
neck until the level reaches the base of the
filler neck.

6-
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Section 6 Service and Appearance Care
Here you will find information about the care of your vehicle. This section begins with service and fuel information,
and then it shows how to check important fluid and lubricant levels. There is also technical information about your
vehicle, and a part devoted to its appearance care.
6
-2 Service
6
-3 Fuel
6
-5 Fuels in Foreign Countries
6
-5 Filling Your Tank
6
-8 Filling a Portable Fuel Container
6
-8 Checking Things Under the Hood
6
-13 Engine Oil
6
-17 Engine Air Cleaner/Filter
6
-20 Automatic Transaxle Fluid
6
-23 Manual Transaxle Fluid
6
-24 Clutch Adjustment
6
-24 Radiator Pressure Cap
6
-25 Thermostat
6
-25 Engine Coolant
6
-27 Power Steering Fluid
6
-28 Windshield Washer Fluid6
-29 Brakes
6
-33 Low Maintenance Battery
6
-34 Bulb Replacement
6
-35 Headlamp Aiming
6
-40 Tires
6
-48 Appearance Care
6
-48 Cleaning the Inside of Your Vehicle
6
-50 Care of the Safety Belts
6
-52 Cleaning the Outside of Your Vehicle
6
-54 Underbody Maintenance
6
-56 Vehicle Identification Number (VIN)
6
-57 Electrical System
6
-60 Replacement Bulbs
6
-60 Capacities and Specifications
6
-61 Air Conditioning Refrigerants
6
-61 Normal Maintenance Replacement Parts