engine overheat CHEVROLET IMPALA 2007 9.G Owner's Manual

If the overheat warning continues, there is
one more thing you can try. You can add the
proper coolant mixture directly to the cooling
system through the coolant ll neck on the engine,
but be sure the system is cool before you do it.
{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.
How to Add Coolant to the Cooling
System
Notice:Your engine has a specic cooling
system drain and ll procedure. Failure
to follow this procedure could cause your
engine to overheat and be severely damaged.
If your engine’s cooling system needs to
be drained and re-lled, please see your
dealer/retailer.
1. You can remove the
pressure cap when
the cooling system,
including the
pressure cap and
upper radiator hose
is no longer hot.
Turn the pressure
cap slowly
counterclockwise.
If you hear a hiss, wait for that to stop. A hiss
means that there is still some pressure left.
330

Engine (cont.)
Oil ........................................................... 310
Oil Life System........................................ 314
Overheated Protection Operating Mode.... 326
Overheating............................................. 323
Running While Parked............................. 125
Starting.................................................... 113
Entry Lighting.............................................. 164
Event Data Recorders................................. 443
Extender, Safety Belt..................................... 40
Exterior Lamps............................................ 160
F
Filter
Engine Air Cleaner................................... 316
Finish Damage............................................ 393
Flashers, Hazard Warning........................... 152
Flash-to-Pass.............................................. 155
Flat Tire...................................................... 373
Flat Tire, Changing...................................... 374
Flat Tire, Storing......................................... 383Fluid
Power Steering........................................ 332
Windshield Washer.................................. 333
Fog Lamp
Fog .......................................................... 163
Fog Lamp Light........................................... 189
Folding Rear Seat......................................... 15
Fuel............................................................ 298
Additives.................................................. 299
California Fuel.......................................... 299
E85 (85% Ethanol)................................... 300
Filling a Portable Fuel Container.............. 304
Filling Your Tank...................................... 302
Fuels in Foreign Countries....................... 301
Gage....................................................... 190
Gasoline Octane...................................... 298
Gasoline Specications............................ 299
Fuses
Fuses and Circuit Breakers...................... 398
Instrument Panel Fuse Block................... 398
Underhood Fuse Block............................. 400
Windshield Wiper..................................... 397
450

Mirrors
Automatic Dimming Rearview
with OnStar
®........................................ 126
Manual Rearview Mirror........................... 126
Manual Rearview Mirror with OnStar
®...... 126
Outside Convex Mirror............................. 127
Outside Power Mirrors............................. 127
MP3 ............................................................ 236
MyGMLink.com............................................ 429
N
Navigation System, Privacy......................... 444
New Vehicle Break-In.................................. 111
Normal Maintenance Replacement Parts..... 419
O
Odometer.................................................... 176
Off-Road Recovery...................................... 260
Oil
Engine..................................................... 310
Pressure Light.......................................... 188Oil, Engine Oil Life System ......................... 314
Older Children, Restraints............................. 41
Online Owner Center................................... 429
OnStar, Privacy........................................... 444
OnStar
®System, see OnStar®Manual........ 128
Operation, Universal Home
Remote System..............................133, 137
Other Warning Devices................................ 152
Outlet Adjustment........................................ 172
Outlets
Accessory Power..................................... 167
Outside
Convex Mirror.......................................... 127
Power Mirrors.......................................... 127
Overheated Engine Protection
Operating Mode....................................... 326
Owner Checks and Services....................... 414
Owners, Canadian.......................................... 3
454