1997 Oldsmobile Achieva heater

If the coolant inside the coolant surge tank is boiling,
don’t do anything else until
it cools down.
Lne coolant level should be at or above
FULL COLD.
If it isn’t, you may have a leak in the radiator hoses,
heater hoses, radiator, water pump
or somewhere else in
the cooling system.
J AUTION:
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.
I 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 fan is running. If the engine is
overheating, the
fan should be running. If it isn’t, your
vehicle needs service.
5-16

A CAUTION:
Adding only plain water to your cooling system
can be dangerous. Plain water, or some other
liquid like alcohol, can boil before the proper
coolant mix will. Your vehicle’s coolant warning
system is set for the proper coolant mix. With
plain water
or the wrong mix, your engine could
get too hot but you wouldn’t get the overheat
warning. Your engine could catch fire and you or
others could be burned. Use a
50/50 mix of clean
water and
DEX-COOL@ coolant.
I NOTICE:
In cold weather, water can freeze and crack the
engine, radiator, heater core and other parts.
So
use the recommended coolant.
A 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. Don’t spill coolant on
a hot engine.
5-18

NOTICE:
When adding coolant, it is important that you use
only
DEX-COOL@ (silicate-free) coolant.
If coolant is 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 our new vehicle warranty.
What to Use
Use a mixture of one-half clean water (preferably
distilled) and one-half
DEX-COOL@ coolant which
won’t damage aluminum parts.
If you use this mixture,
you don’t need
to add anything else.
Adding only plain water to your cooling system can be dangerous. Plain water, or some other
liquid like alcohol, can boil before the proper
coolant mix will. Your vehicle’s coolant warning
system is set for the proper coolant mix. With
plain water or the wrong mix, your engine could
get too hot but you wouldn’t get the overheat
warning. Your engine could catch fire and you or
others could be burned. Use
a 50/50 mix of clean
water and DEX-COOL%oolant.

NOTICE:
If you use an improper coolant mix, your engine
could overheat and be badly damaged. The
repair cost wouldn't be covered
by your
warranty.
Too much water in the mix can freeze
and crack the engine, radiator, heater core and
other parts.
If you have to add coolant more than four times a yea,
have your retailer check your cooling system.
I NOTICE:
If you use the proper coolant, you don't have to
add extra inhibitors or additives which claim to
improve the system. These can be harmful.
Checking Coolant
The surge tank is located on the passenger's side of the
engine compartment.
6-26

Fuse
PWR ST
RDO IGN HTR-A/C
CRUISE
TAIL LPS
LTR
WIPER
02
DR UNLK
ALARM
Usage
Power Seat
Radio
Heater/Air Conditioning Blower,
Daytime Running Lamps, Automatic
Lamp Control
Cruise Control
Parking Lamps, Taillamps,
Sidemarker Lamps, License Lamps,
Instrument Panel Lights, Underhood
Lamp, Headlamp Warning Alarm
Cigarette Lighter, Auxiliary
Power Outlet
Windshield Wipers/Washers
Heated Oxygen Sensors
Automatic Door Unlock
Automatic Transaxle, Automatic Door
Unlock, Alarm Module (Illuminated
Entry, Warning Chimes), Traction
Telltale, Rear Window Defogger,
Remote Lock Control
Fuse
FOG/FTP
PRNDL
DR LK
2
AIR BAG
HORN
INST STOP HAZ
PCM
DR LK
1
INST LPS
RR DEF
HDLP
Usage
Fog Lamps
Instrument Cluster, Powertrain
Computer, Park-Lock Solenoid,
Electronic PRNDL
Door Locks
Air Bag-Power Horn, Service Tool Power
Instrument Cluster
Stoplamps, Hazard Lamps,
Anti-Lock Brakes
Powertrain Control Module
Door Locks, Remote Lock Control
Instrument Panel Lights, Fog Lamps
Rear Window Defogger
Headlamps, Daytime Running Lamps (Circuit Breaker)

Fuse
IGN MOD
HVAC BLO MOT
PCM BATT
CLG FAN
HDLP
STOP
LPS PWR
ACC
RR DEFG
ABS
IGN SW
Usage
Ignition System
Heater/ Air Conditioner-High
Blower, Generator-Voltage
Sense
Powertrain Computer
Engine Cooling Fan
Lighting Circuits
Power Accessory,
Stoplamp Circuits,
Rear Window Defogger
Anti-Lock Brakes,
Variable
Effort Steering
Ignition Switched Circuits
Replacement Bulbs
Outside Lamps Bulb
Headlamp .............................. 9004
Back-up ............................... 2057
High Level Stop
.......................... 912
Tail/Stop/Turn
.......................... 3057
Inside Lamps Bulb
Dome .................................. 562
6-61
- . -

Section 7 Maintenance Schedule
This section covers the maintenance required for your Oldsmobile. Your vehicle needs these services to retain its
safety, dependability and emission control performance.
7-2
7-2
7-3 7-4
7-4 7-4
7-4
1
7-4 1
7-4 1
7-42
7-42 Introduction
Your Vehicle and the Environment
How This Section is Organized
Part A: Scheduled Maintenance Services
Using Your Maintenance Schedule
Selecting the Right Schedule
Part
B: Owner Checks and Services
At Each Fuel Fill
At Least Once a Month
At Least Twice a Year
At Least Once a Year 7-45
7-45
Part
C: Periodic
Maintenance Inspections
Steering, Suspension and Front Drive Axle
Boot and Seal Inspection
7-45 Exhaust System Inspection
7-45 Radiator and Heater Hose Inspection
7-45 Throttle Linkage Inspection
7-46 Brake System Inspection
7-46 Caliper/Knuckle Maintenance Inspection
7-47 Part
D: Recommended Fluids
and Lubricants
Part
E: Maintenance Record
7-49
7-1

Part C: Periodic Maintenance
Inspections
Listed below are inspections and services which should
be performed at least twice a year (for instance, each
spring and fall). You should let your GM retailer’s
service department or other qualified service center do
these jobs. Make sure any necessary repairs are
completed at once.
Proper procedures to perform these services may be
found in a
GM service manual. See “Service and Owner
Publications” in the Index.
Steering, Suspension and Front Drive Axle
Boot and Seal Inspection
Inspect the front and rear suspension and steering
system for damaged, loose or missing parts, signs of
wear
or lack of lubrication. Inspect the power steering
lines and hoses for proper hook-up, binding, leaks,
cracks, chafing, etc. Clean and then inspect the drive
axle boot seals for damage, tears or leakage. Replace
seals if necessary.
Exhaust System Inspection
Inspect the complete exhaust system. Inspect the body
near the exhaust system. Look for broken, damaged,
missing or out-of-position parts as well as open seams,
holes, loose connections or other conditions which could
cause a heat build-up in the
floor pan or could let
exhaust fumes into the vehicle. See “Engine Exhaust’’ in
the Index.
Radiator and Heater Hose Inspection
Inspect the hoses and have them replaced if they are
cracked, swollen or deteriorated. Inspect all pipes,
fittings and clamps; replace as needed.
Throttle Linkage Inspection
Inspect the throttle linkage for interference or binding,
and for damage or missing parts. Replace parts as
needed. Replace any cables that have high effort
or
excessive wear. Do not lubricate accelerator and cruise
control cables.
7-45