2008 PONTIAC G6 engine overheat

{CAUTION:
Heater and radiator hoses, and other engine
parts, can be very hot. Do not touch them. If
you do, you can be burned.
Do not run the engine if there is a leak. If you
run the engine, it could lose all coolant. That
could cause an engine re, and you could be
burned. Get any leak xed before you drive the
vehicle.
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, both fans should be
running. If they are not, your vehicle needs service.
Notice:Engine damage from running the engine
without coolant is not covered by the warranty.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 the warranty. Always
use DEX-COOL
®(silicate-free) coolant in the vehicle.
How to Add Coolant to the Coolant
Surge Tank
Notice:This vehicle has a specic coolant ll
procedure. Failure to follow this procedure could
cause your engine to overheat and be severely
damaged.
If you have not found a problem yet, check to see if
coolant is visible in the surge tank. If coolant is visible
but the coolant level is not at or above the FULL COLD
mark, add a 50/50 mixture of clean, drinkable water
and DEX-COOL
®coolant at the coolant surge tank, but
be sure the cooling system, including the coolant
surge tank pressure cap, is cool before you do it. See
Engine Coolant on page 5-30for more information.
5-37

If no coolant is visible in the surge tank, add coolant as
follows:
{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 coolant
surge tank pressure cap — even a little — they
can come out at high speed. Never turn the
cap when the cooling system, including the
coolant surge tank pressure cap, is hot. Wait
for the cooling system and coolant surge tank
pressure cap to cool if you ever have to turn
the pressure cap.
{CAUTION:
Adding only plain water to the cooling system
can be dangerous. Plain water, or some other
liquid such as alcohol, can boil before the
proper coolant mixture will. The vehicle’s
coolant warning system is set for the proper
coolant mixture. With plain water or the wrong
mixture, the engine could get too hot but you
would not get the overheat warning. The
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: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.
5-38

Windshield Wiper Fuses
The windshield wiper motor is protected by a circuit
breaker and a fuse. If the motor overheats due to heavy
snow, etc., the wiper will stop until the motor cools. If
the overload is caused by some electrical problem, have
it xed.
Power Windows and Other Power
Options
Fuses in the fuse block protect the power windows.
When the current load is too heavy, the fuse opens
protecting the circuit until the problem is xed.
Fuses
The wiring circuits in your vehicle are protected from
short circuits by a combination of fuses, circuit breakers
and fusible links. This greatly reduces the chance of
damage caused by electrical problems.Look at the silver-colored band inside the fuse. If the
band is broken or melted, replace the fuse. Be sure to
replace a bad fuse with a new one of the identical
size and rating.
There are three fuse blocks in your vehicle: one in the
center of the instrument panel, one in the engine
compartment and one in the trunk.
There is a fuse puller located on the instrument panel
fuse block. It can be used to easily remove fuses
from the fuse block.
Instrument Panel Fuse Block
The instrument panel fuse block is located on the
passenger side of the vehicle, on the lower portion of
the instrument panel console near the oor.
Remove the console cover to access the fuse block,
then remove the fuse block cover to access the fuses.
Your vehicle may not be equipped with all the fuses and
features listed.
5-110

D
Daytime Running Lamps..................................3-14
Defensive Driving............................................. 4-2
Delayed Headlamps........................................3-14
Delayed Locking.............................................2-11
Doing Your Own Service Work........................... 5-5
Dome Lamp...................................................3-17
Door
Automatic Door Lock....................................2-11
Delayed Locking..........................................2-11
Door Ajar Reminder.....................................2-11
Locks........................................................2-10
Power Door Locks.......................................2-10
Programmable Automatic Door Unlock............2-12
Rear Door Security Locks.............................2-12
Driver Information Center (DIC).........................3-43
DIC Operation and Displays..........................3-43
DIC Vehicle Personalization..........................3-50
DIC Warnings and Messages........................3-46
Driving
At Night.....................................................4-12
Before a Long Trip......................................4-13
Defensive..................................................... 4-2
Drunken....................................................... 4-2
Highway Hypnosis.......................................4-14
Hill and Mountain Roads..............................4-14
In Rain and on Wet Roads...........................4-12
Rocking Your Vehicle to Get it Out.................4-20
Winter........................................................4-15
E
Easy Entry Seat............................................... 1-9
EDR .............................................................7-16
Electrical System
Add-On Equipment.....................................5-109
Engine Compartment Fuse Block.................5-112
Fuses......................................................5-110
Instrument Panel Fuse Block.......................5-110
Power Windows and Other Power Options....5-110
Rear Compartment Fuse Block....................5-116
Windshield Wiper Fuses.............................5-110
Engine
Air Cleaner/Filter.........................................5-26
Check and Service Engine Soon Light............3-38
Coolant......................................................5-30
Coolant Heater............................................2-25
Coolant Temperature Gage...........................3-37
Drive Belt Routing.......................................6-15
Engine Compartment Overview......................5-14
Exhaust.....................................................2-35
Oil .............................................................5-21
Oil Life System...........................................5-24
Overheated Protection Operating Mode...........5-35
Overheating................................................5-33
Running While Parked..................................2-36
Starting......................................................2-23
Entry/Exit Lighting...........................................3-17
Event Data Recorders.....................................7-16
Extender, Safety Belt.......................................1-32
4

Outlet Adjustment............................................3-26
Outlets
Accessory Power.........................................3-18
Outside
Convex Mirror.............................................2-41
Power Mirrors.............................................2-40
Overhead Console Reading Lamps....................3-17
Overheated Engine Protection
Operating Mode..........................................5-35
Owner Checks and Services.............................. 6-9
Owners, Canadian............................................... ii
P
Paint, Damage..............................................5-107
Parade Dimming.............................................3-17
Park Brake....................................................2-31
Park (P)
Shifting Into................................................2-32
Shifting Out of............................................2-34
Park (P) Headlamps Off in Park (P)..................3-14
Parking
Over Things That Burn.................................2-35
Passenger Airbag Status Indicator.....................3-31
Passenger Sensing System..............................1-68
Passing.........................................................4-10
PASS-Key
®III+..............................................2-19
PASS-Key®III+ Operation................................2-20Perchlorate Materials Requirements, California...... 5-5
Power
Door Locks.................................................2-10
Electrical System.......................................5-110
Lift Seat.....................................................1-11
Retained Accessory (RAP)............................2-23
Seat............................................................ 1-3
Steering Fluid.............................................5-40
Windows....................................................2-16
Pressure Cap.................................................5-33
Privacy..........................................................7-16
Event Data Recorders..................................7-16
Navigation System.......................................7-17
OnStar.......................................................7-17
Radio Frequency Identication.......................7-17
Programmable Automatic Door Unlock...............2-12
R
Radio Frequency Identication (RFID), Privacy....7-17
Radios..........................................................3-52
Radio(s)........................................................3-54
Radios
Reception...................................................3-68
Setting the Clock.........................................3-53
Theft-Deterrent............................................3-67
Raising the Retractable Hardtop........................2-49
Rear Door Security Locks................................2-12
9