heater OLDSMOBILE SILHOUETTE 1996 User Guide

Page 200 of 372

Snow can trap exhaust gases under your vehicle.
This can cause deadly
CO (carbon monoxide) gas
to get inside.
CO could overcome you and kill
you. You can’t see it
or smell it, so you might not
know it is in your vehicle. Clear away snow from
around the base
of your vehicle, especially any
that is blocking your exhaust pipe. And check
around again from time to time to be sure snow
doesn’t collect there.
Open a window just
a little on the side of the
vehicle that’s away from the wind. This
will help
keep
CO out.
Run your engine only as long as you must. This saves
fuel. When you run the engine, make it
go a little faster
than just idle. That is, push the accelerator slightly. This
uses less fuel for the heat that you get and it keeps the
battery charged. You will need a well-charged battery to
restart the vehicle, and possibly for signaling later
on
with your headlamps. Let the heater run for awhile.
Then, shut the engine off and close the window almost
all the way to preserve the heat. Start the engine again
and repeat this only when you feel really uncomfortable
from the cold. But do it as little as possible. Preserve the
fuel as long as you can.
To help keep warm, you can get
out of the vehicle and do some fairly vigorous exercises
every half hour or
so until help comes.
4-26
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Page 225 of 372

/11 CA JTILV:
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
opening 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.
I NOTICE:
r
~ ~~
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.
If No Steam Is Coming From Your Engine
If you get the overheat warning but see or hear no
steam, the problem may not be too serious. Sometimes
the engine can get a little too hot when you:
0 Climb a long hill on a hot day.
0 Stop after high-speed driving.
0 Idle for long periods in traffic.
Tow a trailer.
If you get the overheat warning with no sign of steam,
try this for a minute or so:
1. Turn off your air conditioner.
2. Turn on your heater to full hot at the highest fan speed and open the window as necessary.
3. If you’re in a traffic jam, shift to NEUTRAL (N);
otherwise, shift to the highest gear while
driving
-- AUTOMATIC OVERDRIVE (@)
or THLRD (D).
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Page 227 of 372

An electric fan under the hood can start up even
when the engine is not running and can injure
you. Keep hands, clothing and tools away from
any underhood electric fan.
If the coolant inside the coolant recovery tank is boiling,
don’t do anything else until
it cools down.
The coolant level should
be at or above the FULL HOT
mark. 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.
5-15
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Page 228 of 372

A CAUTION:
Heater and radiator hoses, and other engine
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.
1 parts, can be very hot. Don’t touch them. If you
~
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(s) are running. If the engine
is overheating, both fan(s) should be running.
If they
aren’t, your vehicle needs service.
How to Add Coolant to the Coolant
Recovery
Tank
If you haven’t found a problem yet, but the coolant
level isn’t
at or above the FULL HOT mark, add a 501.50
mixture of den72 water (preferably distilled) and
DEX-COOL TM (orange-colored, silicate-free) antifreeze
at the coolant recovery tank. (See “Engine Coolant” in
the Index for more information.)
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 TM antifreeze.
5-16
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Page 229 of 372

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 mix. 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.
I I
When the coolant in the coolant recovery tank is at or
above the
FULL HOT mark, start your vehicle.
If the overheat warning continues, there’s one more
thing you can try.
You can add the proper coolant mix
directly to the radiator but be sure the cooling system is
cool before you do it.
5-17
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Page 265 of 372

NOTICE:
when adding coolant it is important that you use
DEX-COOL (orange-colored, silicate-free)
coolant meeting
GM Specification 6277M.
If’silicated coolant 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.
What to Use
Use a mixture of one-half
clean water (preferably
distilled) and one-half
DEX-COOL (orange-colored,
silicate-free) antifreeze that meets GM Specification
6277M, which won’t damage aluminum parts. Use
GM Engine Coolant Supplement (sealer) (GM Part
No. 3634621) with any complete coolant change. 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 (orange-colored,
silicate-free) antifreeze.
6-19
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Page 266 of 372

I 1
I NOTICE: I
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 year,
have your retailer check your cooling system.
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 engine coolant reservoir is located on the
passenger’s side of the vehicle towards the middle of
the engine compartment.
When your engine is cold,
the coolant level should be at
FULL
COLD, or a little higher. When your engine is
warm, the level should be up to FULL
HOT, or a
little higher.
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Page 300 of 372

Fuse
CTSY
ELC
Usage
Automatic Door Lock Module,
Dome Lamps, Courtesy Lamps,
Power Door Lock Switches, Glove
Box Lamp, Power Mirrors, Remote
Lock Control Receiver
Electronic Level Control,
Air Inflator, Underhood Lamp
Fuse
HORN
STOP HAZ
F PUMP
RDO
1 /AUX
TAIL ECM
TURN B/U
Usage
Horns, Horn Relay, Safety Belt
Buzzer, Lamps On Reminder,
Key in the Ignition Warning
Hazards, Rear Stoplamps, Anti-Lock
Brake System (ABS), Center
High-Mounted Stoplamp
Fuel Pump, Rear Engine Fan Relay
Radio, Cigarette Lighter, Accessory
Power Outlet, Trailer Harness,
Heater-A/C Control
Headlamp and Instrument Panel
Dimmer Switch (to LPS
fuse),
Power Sliding Door Controller
Powertrain Control Module
Automatic Door Locks Module,
Back-up Lamps, Power Sliding
Door Alarm Module,
Fog Lamp
Relay, Power Sliding Door
Controller, Remote Lock Control
Receiver, Brake-Transaxle Shift
Interlock (BTSI), Front/Rear
Turn Lamps
6-54
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Page 301 of 372

Fuse Usage
GAUGES/AC A/C Compressor Relay, ABS,
Electronic Level Control Height
Sensor, Instrument Panel Cluster,
Power Sliding Door Controller
LPS
ABS Interior Lamps Dimming, Rear
Climate Control Blower, Door Lock
Switches, Temperature and Compass
Display, Headlamp and Instrument
Panel Dimmer Switch, Heater-A/C
Control, Instrument Panel Cluster,
Illumination for Power Sliding
Door Switches
ABS Enable Relay
Fuse
RD02
R WIPER
F WIPER
IGN
HTR-A/C
R BLW
Usage
Radio, Steering Wheel Controls
Temperature and Compass Display,
Rear Window Wipermasher
Windshield and Rear Window
Wipermasher
Cruise Control Switch, Heater-A/C
Control, Speedometer and
Tachometer, Rear Window Defogger
Relay, Safety Belt Reminder Chime,
Lamps on Reminder, Key in the
Ignition Warning
Low Speed A/C Blower Relay
Rear Climate Control Blower
6-55
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Page 344 of 372

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 an Oldsmobile Service Manual. See “Service
and Owner Publications’’ in the Index.
Steering, Suspension and Front-Wheel-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 anc d 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 Inspect!. :
Inspect the throttle linkage for interrerence 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.
Brake System Inspection
Inspect the complete system. Inspect brake lines and
hoses for proper hook-up, binding, leaks, cracks, chafing, etc. Inspect disc brake pads for wear and rotors
for surface condition.
Also inspect drum brake linings
for wear and cracks. Inspect other brake parts, including
drums, wheel cylinders, calipers, parking brake, etc.
Check parking brake adjustment. You may need to have
your brakes inspected more often
if your driving habits
or conditions result
in frequent braking.
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