engine coolant CHEVROLET MALIBU 2007 6.G User Guide

Checking Things Under
the Hood
{CAUTION:
An electric fan under the hood can start up
and injure you even when the engine is not
running. Keep hands, clothing, and tools
away from any underhood electric fan.
{CAUTION:
Things that burn can get on hot engine
parts and start a re. These include
liquids like fuel, oil, coolant, brake uid,
windshield washer and other uids, and
plastic or rubber. You or others could be
burned. Be careful not to drop or spill
things that will burn onto a hot engine.
Hood Release
To open the hood, do the following:
1. Pull the hood
release handle with
this symbol on it.
It is located
inside the vehicle to
the left of the
steering column.
352

A. Engine Air Cleaner/Filter. SeeEngine Air
Cleaner/Filter on page 364.
B. Engine Oil Dipstick. See “Checking Engine Oil”
underEngine Oil on page 359.
C. Engine Oil Fill Cap. See “When to Add Engine
Oil” underEngine Oil on page 359.
D. Engine Coolant Surge Tank. SeeCooling
System on page 374.E. Brake Fluid Reservoir. See “Brake Fluid” under
Brakes on page 381.
F. Battery. SeeBattery on page 384.
G. Engine Compartment Fuse Block. SeeEngine
Compartment Fuse Block on page 449.
H. Windshield Washer Fluid Reservoir. See
“Adding Washer Fluid” underWindshield
Washer Fluid on page 380.
355

A. Engine Air Cleaner/Filter. SeeEngine Air
Cleaner/Filter on page 364.
B. Power Steering Fluid Reservoir (If Equipped).
SeePower Steering Fluid on page 379
C. Engine Oil Fill Cap. See “When to Add Engine
Oil” underEngine Oil on page 359.
D. Engine Oil Dipstick. See “Checking Engine Oil”
underEngine Oil on page 359.
E. Engine Coolant Surge Tank. SeeCooling
System on page 374.F. Coolant Surge Tank Pressure Cap. See
Coolant Surge Tank Pressure Cap on page 371
G. Brake Fluid Reservoir. See “Brake Fluid”
underBrakes on page 381.
H. Battery. SeeBattery on page 384.
I. Engine Compartment Fuse Block. SeeEngine
Compartment Fuse Block on page 449.
J. Windshield Washer Fluid Reservoir. See
“Adding Washer Fluid” underWindshield
Washer Fluid on page 380.
357

A. Engine Air Cleaner/Filter. SeeEngine Air
Cleaner/Filter on page 364.
B. Engine Coolant Bleed Valve. SeeCooling
System on page 374
C. Power Steering Fluid. SeePower Steering
Fluid on page 379.
D. Automatic Transaxle Fluid Dipstick (Out of
View). See “Checking Fluid Level” under
Automatic Transaxle Fluid (2.2L L4 and
3.5L V6 Engines) on page 365orAutomatic
Transaxle Fluid (3.9L V6 Engine) on page 366.
E. Engine Oil Fill Cap. See “When to Add
Engine Oil” underEngine Oil on page 359.
F. Engine Oil Dipstick. See “Checking Engine Oil”
underEngine Oil on page 359.
G. Engine Coolant Surge Tank. SeeCooling
System on page 374.
H. Coolant Surge Tank Pressure Cap. See
Coolant Surge Tank Pressure Cap on page 371
I. Brake Fluid Reservoir. See “Brake Fluid”
underBrakes on page 381.
J. Battery. SeeBattery on page 384.K. Windshield Washer Fluid Reservoir. See
“Adding Washer Fluid” underWindshield
Washer Fluid on page 380.
L. Engine Compartment Fuse Block. SeeEngine
Compartment Fuse Block on page 449.
Engine Oil
Checking Engine Oil
It is a good idea to check the engine oil every time
you get fuel. In order to get an accurate reading,
the oil must be warm and the vehicle must be
on level ground.
The engine oil dipstick handle is a yellow loop.
SeeEngine Compartment Overview on page 354
for the location of the engine oil dipstick.
1. Turn off the engine and give the oil
several minutes to drain back into the oil pan.
If you do not do this, the oil dipstick might
not show the actual level.
2. Pull the dipstick and clean it with a paper
towel or cloth, then push it back in all the
way. Remove it again, keeping the tip down
and check the level.
359

How to Add Automatic Transaxle Fluid
Refer to the Maintenance Schedule to determine
what kind of transaxle uid to use. See
Recommended Fluids and Lubricants on page 468.
If the uid level is low, add only enough of the
proper uid to bring the level into the crosshatched
area on the dipstick.
1. Pull out the dipstick.
2. Using a long-neck funnel, add enough uid at
the dipstick hole to bring it to the proper level.
It does not take much uid, generally less
than one pint (0.5 L). Do not overll.
Notice:Use of the incorrect automatic
transaxle uid may damage your vehicle, and
the damages may not be covered by your
warranty. Always use the automatic transaxle
uid listed inRecommended Fluids and
Lubricants on page 468.
3. After adding uid, recheck the uid level as
described under “How to Check Automatic
Transaxle Fluid,” earlier in this section.
4. When the correct uid level is obtained, push
the dipstick back in all the way.
Engine Coolant
The cooling system in your vehicle is lled with
DEX-COOL®engine coolant. This coolant is
designed to remain in your vehicle for ve years or
150,000 miles (240 000 km), whichever occurs
rst, if you add only DEX-COOL
®extended
life coolant.
The following explains the cooling system and
how to add coolant when it is low. If there is
a problem with engine overheating, seeEngine
Overheating on page 371.
A 50/50 mixture of clean, drinkable water and
DEX-COOL
®coolant will:
Give freezing protection down to
−34°F (−37°C).
Give boiling protection up to 265°F (129°C).
Protect against rust and corrosion.
Help keep the proper engine temperature.
Let the warning lights and gages work as they
should.
368

Notice:Using coolant other than DEX-COOL®
may cause premature engine, heater core,
or radiator corrosion. In addition, the engine
coolant may require changing sooner, at
the rst maintenance service after each
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
®(silicate-free) coolant in your
vehicle.
What to Use
Use a mixture of one-half clean, drinkable water
and one-half DEX-COOL®coolant which will
not damage aluminum parts. If you use this coolant
mixture, you do not need to add anything else.
{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 DEX-COOL
®coolant.
Notice:If you use an improper coolant mixture,
your engine could overheat and be badly
damaged. The repair cost would not be covered
by your warranty. Too much water in the
mixture can freeze and crack the engine,
radiator, heater core, and other parts.
369

If you have to add coolant more than four times a
year, have your dealer/retailer check the cooling
system.
Notice:If you use extra inhibitors and/or
additives in your vehicle’s cooling system, you
could damage your vehicle. Use only the
proper mixture of the engine coolant listed in
this manual for the cooling system. See
Recommended Fluids and Lubricants on
page 468for more information.Checking Coolant
The engine coolant surge tank is located in the
rear of the engine compartment. SeeEngine
Compartment Overview on page 354for more
information on location.
370

{CAUTION:
Turning the surge tank pressure cap when
the engine and radiator are hot can allow
steam and scalding liquids to blow out
and burn you badly. Never turn the surge
tank pressure cap — even a little — when
the engine and radiator are hot.
The vehicle must be on a level surface. When the
engine is cold, the coolant level should be at
the FULL COLD mark or slightly higher.
Adding Coolant
If you need more coolant, add the proper
DEX-COOL®coolant mixture at the surge tank,
but only when the engine is cool. If the surge tank
is empty, a special ll procedure is necessary.
SeeEngine Overheating on page 371andCooling
System on page 374.
{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.
When replacing the pressure cap, make sure it is
hand-tight and fully seated.
Coolant Surge Tank Pressure Cap
Notice:If the pressure cap is not tightly
installed, coolant loss and possible engine
damage may occur. Be sure the cap is properly
and tightly secured.
Engine Overheating
You will nd an engine coolant temperature gage as
well as an engine coolant temperature warning light
on your vehicle’s instrument panel cluster. See
Engine Coolant Temperature Gage on page 211
andEngine Coolant Temperature Warning Light on
page 211.
371

If Steam Is Coming From Your Engine
{CAUTION:
Steam from an overheated engine can
burn you badly, even if you just open the
hood. Stay away from the engine if you
see or hear steam coming from it. Just
turn it off and get everyone away from the
vehicle until it cools down. Wait until
there is no sign of steam or coolant
before you open the hood.
If you keep driving when your engine is
overheated, the liquids in it can catch re.
You or others could be badly burned.
Stop your engine if it overheats, and get
out of the vehicle until the engine is cool.
Notice:If your engine catches re because
you keep driving with no coolant, your vehicle
can be badly damaged. The costly repairs
would not be covered by your warranty.
If No Steam Is Coming From Your
Engine
An overheat warning can indicate a serious
problem.
If you get an engine overheat warning, but see or
hear no steam, the problem may not be too
serious. Sometimes the engine can get a little too
hot when you:
Climb a long hill on a hot day.
Stop after high-speed driving.
Idle for long periods in traffic.
Tow a trailer.
372

If you get the overheat warning with no sign of
steam, try this for a minute or so:
1. In heavy traffic, let the engine idle in
NEUTRAL (N) while stopped. If it is safe to do
so, pull off the road, shift to PARK (P) or
NEUTRAL (N) and let the engine idle.
2. Turn on your heater to full hot at the highest
fan speed and open the windows as
necessary.
If you no longer have the overheat warning, you
can drive. Just to be safe, drive slower for
about 10 minutes. If the warning does not come
back on, you can drive normally.
If the warning continues, pull over, stop, and park
your vehicle right away.
If there is still no sign of steam, idle the engine for
three minutes while you are parked. 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.Overheated Engine Protection
Operating Mode (3.5L V6 and
3.9L V6 Engines)
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 signicant 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.
SeeEngine Oil on page 359.
373