engine overheat SATURN AURA HYBRID 2007 User Guide

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 the overheat warning is no longer on, 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.
277

{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 your
engine without coolant is not covered by your
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 your warranty. Always use
DEX-COOL
®(silicate-free) coolant in your
vehicle.
279

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. SeeEngine
Coolant on page 272for more information.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.
280

{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: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.
{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.
1. Remove the coolant
surge tank pressure
cap when the
cooling system,
including the coolant
surge tank
pressure cap and
upper radiator hose,
is no longer hot.
Turn the pressure cap slowly counterclockwise
about two or two and one-half turns. If you
hear a hiss, wait for that to stop. This allows
any pressure still left to be vented out the
discharge hose.
281

Electrical System (cont.)
Instrument Panel Fuse Block................... 343
Power Windows and Other Power
Options................................................. 342
Rear Compartment Fuse Block................ 348
Windshield Wiper Fuses........................... 342
Electronic Stability Control........................... 219
Engine
Air Cleaner/Filter...................................... 270
Check and Service Engine Soon Light..... 172
Coolant.................................................... 272
Coolant Heater......................................... 114
Coolant Temperature Warning Light.......... 171
Drive Belt Routing.................................... 367
Engine Compartment Overview................ 264
Exhaust................................................... 123
Oil ........................................................... 265
Oil Life System........................................ 268
Overheating............................................. 275
Running While Parked............................. 124
Starting.................................................... 110
Entry/Exit Lighting....................................... 151
Event Data Recorders................................. 389
Extender, Safety Belt..................................... 38F
Filter
Engine Air Cleaner................................... 270
Finish Damage............................................ 339
Flashers, Hazard Warning........................... 140
Flash-to-Pass.............................................. 142
Flat Tire...................................................... 319
Fluid
Windshield Washer.................................. 282
Folding Rear Seat......................................... 15
Fuel............................................................ 255
Additives.................................................. 256
California Fuel.......................................... 256
Filling a Portable Fuel Container.............. 261
Filling the Tank........................................ 258
Fuels in Foreign Countries....................... 258
Gage....................................................... 177
Gasoline Octane...................................... 255
Gasoline Specications............................ 255
Fuel Economy Light.................................... 179
Fuses.......................................................... 343
Engine Compartment Fuse Block............. 346
Instrument Panel Fuse Block................... 343
Rear Compartment Fuse Block................ 348
Windshield Wiper..................................... 342
397