1993 CHEVROLET LUMINA radiator cap

Downloaded from www.Manualslib.com manuals search engine .- I
Problems on the Road
hgine Overheating (CONT.)
If you no longer have the overheat
warning, you can drive. Just to be safe,
drive slower for about ten minutes.
If
the warning doesn’t come back on, you
can drive normally.
If the warning continues, pull over,
stop, and park your vehicle right away.
If there’s still
no sign of steam, you can
idle the engine for two or three minutes
while you’re parked, to see
if the
warning stops.
But then, if you still have the warning,
TURN OFF THE ENGINE AND GET
EVERYONE
OUT OF THE VEHICLE
until it cools down.
You may decide not to lift the hood but
to get service help right away.
LAU I IVN
2.2L L4 Cooling System
When you decide it’s safe to lift the
hood, here’s what you’ll see:
(A) Coolant recovery tank
(B) Radiator pressure cap
(C) Electric engine fan
If the coolant inside the coolant
recovery tank is boiling, don’t do
anything else until it cools down.
All V6 Cooling Systems
When you decide it’s safe to lift the
hood, here’s what you’ll see:
(A) Coolant recovery tank
(B) Radiator pressure cap
(C) Electric engine fan
If the coolant inside the coolant
recovery tank is boiling, don’t do
anything else until it cools down.
I

Downloaded from www.Manualslib.com manuals search engine 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 to
the left 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. 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. I I
2. Then keep turning the pressure cap,
but
now push down as you turn it.
Remove the pressure cap.
11
3. After the lengine cools, open the
coolant
air bleed valve or valves.
2.2L L4 (VIN CODE 4): There is
only one bleed valve. It
is located on
the coolant outlet adapter.

Downloaded from www.Manualslib.com manuals search engine 6. Then fill the coolant recovery tank to
the
COLD mark.
7. Put the cap back on the coolant
recovery tank, but leave the radiator
pressure cap off. 8. Start the engine and let it run until
you can feel the upper radiator hose
getting hot. Watch out for the engine
fans.
9. By this time, the coolant level inside
the radiator filler neck may be lower.
If the level is lower, add more of the
proper mix through the filler neck
until the level reaches the base of the
filler neck.

Downloaded from www.Manualslib.com manuals search engine Service & Appearance Care
9 P
. I ...... 2.2L L4 €ngine (CODE 4)
When you open the hood, you’ll see:
1. Power Steering Fluid Reservoir
2. Automatic Transaxle Fluid Dipstick
3. Brake Fluid Reservoir
4. Windshield Washer Fluid Reservoir
..............
b
I
9. Radiator Pressure Cap
W6133 I

Downloaded from www.Manualslib.com manuals search engine 3.7L V6 Engine (CODE TOR w)
When you open the hood, you’ll see:
1. Power Steering Fluid Reservoir
2. Automatic Transaxle Fluid Dipstick
3. Brake Fluid Reservoir
4. Windshield Washer Fluid Reservoir
5. Battery
6. Air Cleaner
7. Engine Oil Fill Cap
8. Engine Oil Dipstick
9. Radiator Pressure Cap
10. Engine Coolant Reservoir
I99

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= 200
W6119
Twin Dual Cam (DOHC) 3.4L V6
Engine (CODE X)
When you open the hood, you’ll see:
1. Power Steering Fluid Reservoir
2. Automatic Transaxle Fluid Dipstick
3. Brake Fluid Reservoir
4. Hydraulic Clutch Fluid Reservoir
5. Windshield Washer Fluid Reservoir
6. Battery
7. Air Cleaner
8. Engine Oil Fill Cap
9. Engine Oil Dipstick
IO. Radiator Pressure Cap
11. Engine Coolant Reservoir
(if equipped)
(if equipped)

Downloaded from www.Manualslib.com manuals search engine How to Check
The proper fluid should be added if the
level does not reach the bottom of the
diaphragm when it’s
in place in the
reservoir. See the instructions on the
reservoir cap.
Engine Coolant
The following explains your cooling
system and how to add coolant when it
is low. If you have a problem with
engine overheating or
if you need to add
coolant to your radiator, see the
Index
under Engine Overheating.
The proper coolant for you1 ~ ~ ~ _et
will:
Give freezing protection c, .m to
Give boiling protection up to 262°F
Protect against rust and corrosion.
Help keep the proper engine
Let the warning lights work as they
What to Use:
Use a mixture of one-half clean water
(preferably distilled) and one-half
antifreeze that meets
“GM Specification
1825-M,” which won’t damage ,
-34°F (-37°C).
(128°C).
temperature. should. aluminum
parts. You can
also use a
recycled coolant conforming to
GM
Specification 1825-M with a complete
coolant flush and refill. If you use this
mixture, you don’t need to add anything
else.
I
9
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 mix will.
Your vehicle’s coolant warning
system is set for the proper coolant
mix. With plain water or the wrong
mix, 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 mix of clean
water and a proper antifreeze.

Downloaded from www.Manualslib.com manuals search engine If this light comes on, it means you’re
low on engine coolant.
To Add Coolant:
If you need more coolant, add the
proper mix
at the coolant recovery
tank.
Turning the radiator pressure
b cap when the engine and
radiator are hot can allow steam
and scalding liquids to blow out
and burn you badly. With the
coolant recovery tank, you
will
almost never have to add coolant at
the radiator. Never turn the
radiator pressure cap-even a
little-when the engine and radiator
are hot.
Add coolant mix at the recovery tank,
but be careful not to spill it.
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
I coolant on a hot engine. I