1998 Oldsmobile Achieva coolant temperature

! To Use the Engine Coolant Heater
1. Turn off the engine.
1 2. Open the hood and unwrap the electrical cord.
3. Plug it into a normal, grounded 11 0-volt AC oatlet.
Plugging the cord into an ungrounded outlet
could cause an electrical shock. Also, the wrong
kind of extension cord could overheat and cause
a fire. You could be seriously injured. Plug the
cord
into a properly grounded three-prong
110-volt
AC outlet. If the cord won’t reach, use
a heavy-duty three-prong extension cord rated
for
at least 15 amps.
I
How long should you keep the coolant heater plugged
in? The answer depends on the outside temperature, the
kind of oil you have, and some other things. Instead of
trying to list.everyhng here, we ask that you contact
your retailer in the area where you’ll be parking your
vehicle. The retailer can give you the best advice for
that particular area.
Automatic Transaxle Operation
P
R
N
ID1
3
2
1
Your automatic transaxle
has a
shift lever located
on the console between
the seats.
4. Before starting the engine, be sure to unplug
and store the cord as it was before to keep it away
from moving engine parts.
If you don’t, it could
be damaged.
PARK (P): This locks your front wheels. It’s the best
position
to use when you start your engine because your
vehicle can’t move easily.
2-18

0 The warning light will come on when you set your
parking brake with the engine running, and it will
stay on if your parking brake doesn’t release fully.
If the system is turned on and the warning light
stays on after your parking brake
is fully released, it
means there’s a problem with the system.
If the traction control system is affected by an
engine-related problem, the system will turn off and
the warning light will come on.
If the Enhanced Traction System warning light comes
on and stays on for an extended period of time when the
system
is turned on and the parking brake is fully
released, your vehicle needs service.
Enhanced Traction System Active Light
LOW
TRAC
When your Enhanced
Traction System is limiting
wheel spin, this light
will come on.
Slippery road conditions may exist
if the Enhanced
Traction System active light comes
on, so adjust your
driving accordingly. The light will stay
on for a
few seconds after the
Enhanced Traction System stops limiting wheel spin.
The Enhanced Traction System active light also comes
on briefly when you turn the ignition key to RUN. If the
light doesn’t come on then, have it fixed
so it will be
there to tell you when the system is active.
Engine Coolant Temperature Gage
This gage shows the
engine coolant temperature.
If the gage pointer moves
into the red area, 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.

BI-LEV: Use on cool, but sunny days. This setting
brings in the outside air, but directs it in two ways. The
cool air is directed to the upper portion of your body
through the instrument panel outlets, but slightly
warmer air is directed through the heater ducts and
defroster vents. At times this temperature difference
may be more apparent than others.
The air conditioner compressor is enabled in all three
air conditioning positions.
VENT: Use when outside temperatures are mild, and
little heating or cooling is needed. Airflow comes
through the instrument panel outlets. Set the center
control knob to the temperature desired.
HEAT This setting brings heated air through the heater
ducts, and some through the windshield defroster vents.
If you have the optional engine coolant heater (engine
block heater) and use it during cold weather,
0 “F (- 18 O C)
or lower, your heating system will more quickly provide
heat because the engine coolant
is already warmed. See
“Engine Coolant Heater” in the Index.
DEFOG: This setting divides airflow equally between
the heater ducts and the windshield defroster vents.
DEF: This setting directs air through the
windshield defroster vents located
on top of the
instrument panel.
Air Conditioning
The air conditioner and heater work best if you keep
your windows closed while using them. Your vehicle
also has the flow-through ventilation system described
later
in this section.
Your system has three air conditioner settings in
addition to the standard climate control system.
Before using your air conditioner
on very hot days,
open the windows long enough to let hot inside air
escape. This reduces the amount of work your air
conditioner’s compressor will have to do, which
should help fuel economy.
Heating
On cold days, use HEAT with the temperature knob all
the way in the red area. The system will bring in outside
air, heat it and send it to the floor ducts.
If your vehicle has an engine coolant heater, you can use
it to help your system provide warm air faster when it’s
cold outside
(0°F (-18°C) or lower). An engine coolant
heater warms the coolant your engine and heating
system
uses to provide heat. See “Engine Coolant
Heater”
in the Index.

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
Steam from an overheated engine can burn you
badly, even if you just open the hood. Stay away
from the engine if you see or hear steam coming
from it. Just turn
it off and get everyone away
from the vehicle until
it cools down. Wait until
there is no sign
of steam or coolant before you
open the hood.
If you keep driving when your engine is
overheated, the liquids in it can catch fire. You or
others could be badly burned. Stop your engine
if
it overheats, and get out of the vehicle until the
engine
is cool.
NOTICE:
If your engine catches fire because you keep
driving with no coolant, your vehicle can be
badly damaged. The costly repairs would not be
covered
by your warranty.
5-15

How to Add Fluid
Refer to the Maintenance Schedule to determine what
kind of transaxle fluid to use. See “Recommended
Fluids and Lubricants” in the Index.
If the fluid level is low, add only enough of the proper
fluid to bring the level into the cross-hatched area on
the dipstick.
1. Pull out the dipstick.
2. Using a long-neck hnnel, add enough fluid at the
dipstick hole to bring
it to the proper level.
3. After adding fluid, recheck the fluid level as
described under “How to Check.”
4. When the correct fluid level is obtained, push
the dipstick back in all the way.
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.
B
It doesn’t take much fluid, generally less than The following explains your cooling system and how
one pint
(0.5 L). Don’t oveflZZ. to add coolant when it is low. If you have a problem
with engine overheating, see “Engine Overheating” in
I 3 the Index.
NOTICE: A 50/50 mixture of water and DEX-COOL@
coolant will:
We recommend you use only fluid labeled
DEXRON@-III, because fluid with that label is
made especially for your automatic transaxle.
is not covered by your new vehicle warranty.
Protect against rust and corrosion. Damage caused by fluid other than DEXRON-III
a Give boiling protection up to 265 “F (129 “C).
a Give freezing protection down to -34°F (-37°C).
Help keep the proper engine temperature. z
Let the warning lights and gages work as
they should.
6-21

Surge Tank Pressure Cap Power Steering Fluid
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. When to Check Power Steering Fluid
It is not necessary to regularly check power steering
fluid unless you suspect there
is a leak in the system or
you hear an unusual noise. A fluid loss in this system
could indicate
a problem. Have the system inspected
and repaired.

Engine .................................. 6.10. 6.11
Coolant
..................................... 6-21
Coolant Heater
............................... 2- 17
Coolant Level Check
.......................... 7-30
Coolant Temperature Gage
..................... 2-54
Exhaust
..................................... 2-27
FuseBlock
.................................. 6-56
Identification
................................ 6-52
OilLevelCheck
.............................. 7-30
Overheating
................................. 5-15
Running While Parked
......................... 2-27
Specifications
................................ 6-58
Starting Your
...................... 2.14.2.15. 2.16
Engine Coolant
................................. 5 . 15
Engineoil
.................................... 6-12
Adding
..................................... 6-13
Additives
................................... 6-16
Pressure Warning Light
........................ 2-57
Used
....................................... 6-17
Whentochange
.............................. 6-16
Enhanced Traction System
......................... 4-9
Enhanced Traction System Active Light
......... 2-54, 4-9
Enhanced Traction System Warning Light
....... 2-53, 4-9
Exhaust, Engine
................................ 2-27
Checking
................................... 6-13
Fabric Cleaning
............................... 6-45
Filling a Portable Fuel Container
.................... 6-8
FillingYourTank
................................ 6-5
Filter. Air
..................................... 6-17
Finish Care
.................................... 6-48 Finish Damage
................................. 6-50
First Gear. Automatic Transaxle
................... 2-22
Flashers. Hazard Warning
......................... 5-3
Flat Tire. Changing
............................. 5-25
Fluids and Lubricants
............................ 7-36
Foreign Countries. Fuel
........................... 6-5
Four-Way Manual Seat
........................... 1-3
Fuel
.......................................... 6-3
Filling Your Tank
.............................. 6-5
In Foreign Countries
........................... 6-5
Fuses and Circuit Breakers
....................... 6-53
FrontTowing
.................................. 5-11
Gage
....................................... 2-60
Gages Engine Coolant Temperature
.................... 2-54
Fuel
....................................... 2-60
Speedometer
................................. 2-49
Tachometer
.................................. 2-50
GarmentHook
................................. 2-45
GAWR
....................................... 4-31
Gear Positions. Automatic Transaxle
................ 2-18
GloveBox
.................................... 2-43
Gross Axle Weight Rating
........................ 4-31
Gross Vehicle Weight Rating
...................... 4-31
GVWR
....................................... 4-31
Halogen Bulbs
................................ 6-32
Hazard Warning Flashers
.......................... 5-2
Head Restraints
................................. 1-5
9-4