2007 CHEVROLET MONTE CARLO overheating

How to Add Fluid
Refer to the Maintenance Schedule to determine
what kind of transaxle uid to use. See
Recommended Fluids and Lubricants on page 415.
If the uid level is low, add only enough of the
proper uid to bring the level into the
cross-hatched 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 415.
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 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 the radiator, seeEngine
Overheating on page 323.
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.
320

Checking Coolant
The coolant recovery
tank cap has this
symbol on it.
SeeEngine Compartment Overview on page 308
for more information on the location of the
coolant recovery tank.
The vehicle must be on a level surface when
checking the coolant level.
When the engine is cold, the coolant level
should be at the cold ll line or a little higher.
The cold ll line is marked with the same symbol
as the coolant recovery tank cap.
Adding Coolant
If more coolant is needed, add the proper
DEX-COOL®coolant mixture at the coolant
recovery tank, but be careful not to spill it.
If the coolant recovery tank is completely empty,
add coolant to the cooling system through the
coolant ll neck on the engine. SeeEngine
Overheating on page 323.
{CAUTION:
Turning the radiator pressure 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.
322

{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.
Occasionally check the coolant level in the
radiator. For information on how to add coolant to
the radiator, seeCooling System on page 326.
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.
SeeEngine Compartment Overview on page 308
for more information on location.
Engine Overheating
There is a coolant temperature gage and a
warning light on the instrument panel that indicate
an overheated engine condition. SeeEngine
Coolant Temperature Gage on page 180
andEngine Coolant Temperature Warning
Light on page 179.
In addition, you will nd an ENGINE
OVERHEATED IDLE ENGINE and an ENGINE
OVERHEATED STOP ENGINE message
displayed on the vehicle’s Driver Information
Center (DIC). SeeDIC Warnings and Messages
on page 195for more information.
323

If there seems to be no leak, with the engine on,
check to see if the electric engine cooling fans
are running. If the engine is overheating, the fans
should be running. If the fans are not running,
your vehicle needs service.
Notice:Engine damage from running your
engine without coolant is not covered by your
warranty. SeeOverheated Engine Protection
Operating Mode on page 325for information
on driving to a safe place in an emergency.
Notice:Using coolant other than DEX-COOL
®
may cause premature engine, heater core,
or radiator corrosion. In addition, the engine
coolant could require changing sooner,
at 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.
How to Add Coolant to the Coolant
Recovery Tank
{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.
328

Tires
Your new vehicle comes with high-quality tires
made by a leading tire manufacturer. If you ever
have questions about your tire warranty and
where to obtain service, see your GM Warranty
booklet for details. For additional information refer
to the tire manufacturer’s booklet included with
your vehicle.
{CAUTION:
Poorly maintained and improperly used
tires are dangerous.
Overloading your vehicle’s tires can
cause overheating as a result of too
much friction. You could have an
air-out and a serious accident. See
Loading Your Vehicle on page 277.
CAUTION: (Continued)
CAUTION: (Continued)

Underinated tires pose the same
danger as overloaded tires. The
resulting accident could cause serious
injury. Check all tires frequently to
maintain the recommended pressure.
Tire pressure should be checked when
your vehicle’s tires are cold. See
Inflation - Tire Pressure on page 357.
Overinated tires are more likely to
be cut, punctured, or broken by a
sudden impact — such as when
you hit a pothole. Keep tires at the
recommended pressure.
Worn, old tires can cause accidents.
If the tire’s tread is badly worn, or
if your vehicle’s tires have been
damaged, replace them.
349

E
Easy Entry Seat............................................ 15
Electric Power Management........................ 161
Electrical System
Add-On Equipment................................... 395
Fuses and Circuit Breakers...................... 395
Headlamp Wiring..................................... 395
Instrument Panel Fuse Block................... 396
Power Windows and Other Power
Options................................................. 395
Underhood Fuse Block............................. 397
Windshield Wiper Fuses........................... 395
Engine
Air Cleaner/Filter...................................... 316
Battery..................................................... 336
Check and Service Engine Soon Light..... 181
Coolant.................................................... 320
Coolant Heater......................................... 112
Coolant Temperature Gage...................... 180
Coolant Temperature Warning Light.......... 179
Drive Belt Routing.................................... 417
Engine Compartment Overview................ 308
Exhaust................................................... 121
Oil ........................................................... 311
Oil Life System........................................ 314
Overheated Protection Operating Mode.... 325Engine (cont.)
Overheating............................................. 323
Starting.................................................... 110
Entry Lighting.............................................. 160
Event Data Recorders (EDR)...................... 434
Extender, Safety Belt..................................... 40
Exterior Lamps............................................ 156
F
Filter
Engine Air Cleaner................................... 316
Finish Damage............................................ 392
Flashers, Hazard Warning........................... 148
Flash-to-Pass.............................................. 151
Flat Tire...................................................... 371
Flat Tire, Changing...................................... 372
Flat Tire, Storing......................................... 382
Fluid
Automatic Transaxle................................. 317
Power Steering........................................ 331
Windshield Washer.................................. 332
Fog Lamp Light........................................... 185
Fog Lamps.................................................. 158
Folding Rear Seat......................................... 16
447