overheating CHEVROLET IMPALA 2007 9.G User Guide

When the engine is cold, the coolant level should
be at or above the cold ll line on the coolant
recovery tank. To check the coolant level, look
for the cold ll line on the side of the coolant
recovery tank that faces the engine. If the level is
not correct, there may be a leak at the pressure
cap or in the radiator hoses, heater hoses,
radiator, water pump, or somewhere else in
the cooling system.
{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, 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 326for 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.
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 359.
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.
351

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