1998 CHEVROLET MALIBU overheating

Downloaded from www.Manualslib.com manuals search engine Engine Coolant Temperature Gage
0
This gage shows the engine
coolant temperature.
If the
gage pointer moves into the
red area, the light comes on
and you hear a chime, your
engine is too hot! It means
that your engine coolant
has overheated.
If you have been operating your vehicle under normal driving conditions, you should pull
off the road, stop
your vehicle
and turn off the engine as soon as possible.
In “Problems on the Road,” this manual shows what to
do. See “Engine Overheating” in the Index.
Low Coolant Warning Light
&I This light comes on briefly
I when you turn your
If this light comes on and stays on and you hear a chime,
the vehicle should promptly be pulled off the road and
the coolant level checked.
See “Engine Coolant” in the Index. If there are visible
signs
of steam, see “Engine Overheating” in the Index
before opening the hood. Have your vehicle serviced as
soon as you can.

Downloaded from www.Manualslib.com manuals search engine Turn Signals When Towing a Trailer
When you tow a trailer, your vehicle may need
additional wiring. Check with your dealer. The green
arrows on
your instrument panel will flash whenever
you signal a turn or lane change. Properly hooked up,
the trailer lamps will also flash, telling other drivers
you’re about to turn, change lanes
or stop.
When towing a trailer, the green arrows on your
instrument panel will flash for turns even
if the bulbs on
the trailer are burned out. Thus, you may think drivers
behind you are seeing your signal when they are not. It’s
important to check occasionally to be sure the trailer
bulbs are still working.
Driving On Grades
NOTICE:
Do not tow on steep continuous grades exceeding
6 miles (9.6 km). Extended, higher than normal
engine and transaxle temperatures may result and damage your vehicle. Frequent stops are
very important
to allow the engine and transaxle
to
cool.
Reduce speed and shift to a lower gear before you start
down a long
or steep downgrade. If you don’t shift
down, you might have to
use your brakes so much that
they would get hot and no longer work well.
On a long uphill grade, shift down and reduce your
speed to around
45 mph (70 km/h) to reduce the
possibility
of engine and transaxle overheating.
Pay attention to the engine coolant gage.
If the indicator
is in the red area, turn
off the air conditioning to reduce
engine load (see “Engine Overheating” in the Index).

Downloaded from www.Manualslib.com manuals search engine Maintenance When Trailer Towing
Your vehicle will need service more often when you’re
pulling a trailer. See
the Maintenance Schedule for more
on this. Things that are especially important in trailer
operation are automatic transaxle fluid (don’t overfill),
engine oil, belt, cooling system and brake adjustment.
Each
of these is covered in this manual, and the Index
will help you find them quickly. If you’re trailering, it’s
a good idea to review these sections before you start
your trip.
Check periodically to see that all hitch nuts and bolts
are tight.
Engine Cooling When Trailer Towing
Your cooling system may temporarily overheat during
severe operating conditions. See “Engine Overheating”
in the Index.
Towing A Trailer
(Except
3100 V6 Engine)
Your vehicle is neither designed nor intended to tow
a trailer.

Downloaded from www.Manualslib.com manuals search engine 0 Section 5 Problems on the Road
Here you’ll find what to do about some problems that can occur on the road.
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5 -2
5-3
5-8
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Hazard Warning Flashers
Other Warning Devices
Jump Starting
Towing Your Vehicle
Engine Overheating 5- 15
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Cooling System
If a Tire Goes Flat
Changing a Flat Tire
Compact Spare Tire
If You’re Stuck: In Sand, Mud,
Ice or Snow

Downloaded from www.Manualslib.com manuals search engine Engine Overheating
You will find a coolant temperature gage on your
vehicle’s instrument panel. See “Engine Coolant
Temperature Gage” in the Index.
You will also find a
low coolant level warning light on your vehicle’s
instrument panel. See
“Low Coolant Warning Light” in
the Index.
If Steam Is Coming From Your Engine

Downloaded from www.Manualslib.com manuals search engine Heater and radiator hoses, and other engine
parts, can be
very hot. Don’t touch them. If you
do, you can be burned.
Don’t run the engine
if there is a leak. If you run
the engine, it could lose all coolant. That could
cause an engine fire, and you could be burned.
Get any leak fixed before you drive the vehicle.
NOTICE:
Engine damage from running your engine
without coolant isn’t covered by your warranty.
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 aren’t, your vehicle needs service.
How to Add Coolant to the Coolant
Surge Tank
If you haven’t found a problem yet, but the coolant level
isn’t at FULL COLD mark or slightly higher, add a
50/50 mixture of clean water (preferably distilled) 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” in the Index for more information.)
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.
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Downloaded from www.Manualslib.com manuals search engine NOTICE:
-
We recommend you use only fluid labeled
DEXRON@-III, because
fluid with that label is
made especially for your automatic transaxle.
Damage caused by fluid other than DEXRON-III
is not covered by your new vehicle warranty.
Engine Coolant
The cooling s stem in your vehicle is filled with
DEX-COOL engine coolant.
This coolant is designed
to remain in your vehicle for 5 years or 150,000 miles
(240 000 km) whichever occurs first, 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, see “Engine Overheating” in
the Index.
8
A 50/50 mixture of water and DEX-COOL@ coolant wilk
0 Give freezing protection down to -34°F (-37’C).
0 Give boiling protection up to 265 OF ( 129 O C).
0 Protect against rust and corrosion.
0 Help keep the proper engine temperature.
0 Let the warning lights and gages work as they should.
~~
NOTICE:
When adding coolant, it is important that you
use only DEX-COOL@ (silicate-free) coolant.
If coolant other than DEX-COOL is added. to
the system, premature engine, heater core or
radiator corrosion may result.
In addition, the
engine coolant will require change sooner
-- at
30,000 miles (50 000 km) or 24 months,
whichever
occurs first. Damage caused by the
use of coolant other than DEX-COOL@ is not
covered by
your new vehicle warranty.
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Downloaded from www.Manualslib.com manuals search engine Adding Coolant
If you need more coolant, add the proper DEX-COOL'
coolant mixture at the surge tank, but only when the
engine
is cool.
/A C A UTION:
-
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. Don't spill coolant on a hot engine.
When redacing the pressure cap, make sure it
is tight.
Surge Tank Pressure Cap
I NOTICE:
Your pressure cap is an 15 psi (105 kPa)
pressure-type cap and must be tightly installed to
prevent coolant loss and possible engine damage
from overheating.
When you replace your surge tank pressure cap, a
GM
cap is recommended.
Thermostat
Engine coolant temperature is controlled by a thermostat
in the engine coolant system. The thermostat stops the
flow of coolant through the radiator until the coolant
reaches a preset temperature.
When you replace your thermostat, an ACDelco@
thermostat
is recommended.
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