1996 PONTIAC BONNEVILLE Owners Manual

Supercharged Engine (Option)
Your Bonneville may have a 3800 Supercharged engine.
The supercharger is a device which is designed
to pump
more
air into the engine than it would normally use.
This air mixed with fuel, creates increased engine
power. Since the supercharger is a pump
and is driven
from an engine accessory drive belt, increased pressure
is available at all driving conditions.
The Powertrain Control Module (PCM), works with a
vacuum control to regulate the increased pressure
required
during specific driving conditions. When this
increased pressure or boost is not desired, such as during
idling
and light throttle cruising, the excess air that the
supercharger is pumping is routed through
a bypass.
All of these controls, working together provide high
performance character
and fuel efficiency in the
38010 V6 Supercharged engine.
The-power steering pump uses a remote reservoir
mounted on the throttle and cruise control cable bracket.
See “Maintenance Schedule”
in the Index for when you
should check the fluid.
I ’. .. ,- .. .. , . -. :? 1
Engine Oil
CHECK OIL
LEVEL
If the CHECK OIL
LEVEL light on the
instrument panel comes
on, it means
you need to check
your engine oil level
right away.
For more information, see “Check Oil Level Light”
in
the Index. You should check your engine oil level
regularly; this is
an added reminder.
It’s a good idea
to check your engine oil every time you
get fuel. In order to get an accurate reading, the oil must
be warm and the vehicle must be on level ground.
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The engine oil dipstick
is located immediately
behind the engine
fans
and in front of the
engine oil
fill cap. The
top
of the dipstick is a
round, yellow loop.
Turn
off the engine and give the oil a few minutes to
drain back into the oil pan. If you don’t, the oil dipstick
might not show the actual level.
Checking Engine Oil
Pull out the dipstick and clean it with a paper towel or
cloth, then push it back in all the way. Remove it again,
keeping the tip down, and check the level.
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When to Add Oil What Kind of Oil to Use
If the oil is at or below the ADD mark, then you’ll need to Oils recommended for your vehicle can be identified by
add some oil. But you must use the right kind. This part looking for the “Starburst” symbol. This symbol
explains what
kind of oil to use. For crankcase capacity, indicates that the oil has been certified by the American
see “Capacities and Specifications” in the Index. Petroleum Institute (API). Do not use any oil which
E
does not carry this Starburst symbol.
I NOTICE:
Don’t add too much oil. If your engine has so
much oil that the oil level gets above the
:
operating range, your engine could be damaged. cross-hatched
area that shows the proper I
The engine oil fill cap is behind the engine oil dipstick
and engine fans.
Just fill it enough to put the level somewhere
in the
proper operating range. Push tKe dipstick all the way
back in when you’re through.
If you change your
own
oil, be sure you
use oil that has the
Starburst
symbol on,
the front, of the oil
container.
If you have
your oil changed for
you, be
sure. the oil put
into
your engine is
American Petroleum
Institute certified for
gasoline engines. I
You should also use the proper viscosity oil for your
vehicle, as shown in the following chart:
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I RECOMMENDED SAE VISCOSITY GRADE ENGINE OILS 1
FOR BEST FUEL ECONOMY AND COLD STARTING, SELECT THE LOWEST
I SAE VISCOSITY GRADE OIL FOR THE EXPECTED TEMPERATURE RANGE.
HOT
WEATHER
/

COLD
I WEATHER
SAE 5W-30
WOK
FOR THIS 4
SYMBOL
SAE 10W-30 PREFEMEO abow (PF (-18°C)
DO NOT USE SAE MW-50 OR ANY OTHER GRADE OIL NOT RECOMMENDED
As shown.in the chart, SAE 1OW-30 is best for your
vehicle. However,
you can use SAE 5W-30 if it’s going
to be colder than 60 OF (1 6 O C) before your next oil
change. When it’s very cold, you should use
SAE
5W-30. These numbers on an oil container show its
viscosity, or thickness. Do not use other viscosity
oils,
such as SAE 20W-50.
NOTICE:
Use only engine oil with the American Petroleum
Institute Certified For Gasoline Engines
“Starburst” symbol. Failure to use the
recommended oil can result in engine damage
not
covered by your warranty.
GM Goodwrench@ oil meets all the requirements for
your vehicle.
Engine Oil Additives
Don’t add anything to your oil. Your Pontiac dealer is
ready to advise if you
think something should be added.
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a
a
a
a
a
Most trips are less than 5 to 10 miles (8 to 16 km).
This is particularly important when outside
temperatures are below freezing.
Most trips include extensive idling (such as frequent
driving in stop-and-go traffic).
Most trips are through dusty areas.
You frequently tow a
trailer or use a carrier on top of
your vehicle.
The vehicle
is used for delivery service, police, taxi
or other commercial application.
Driving under these conditions causes engine oil
to
break down sooner. If any one of these is true for your
vehicle, then you need to change
your oil and filter
every
3,000 miles (5 000 km) or ,3 months -- whichever
occurs first.
If none of them is true, change the oil and filter every
7,500 miles (12 500 km) or 12 months -- whichever
occurs fiist. Driving a vehicle with
a fully warmeld
engine under highway conditions causes engine oil to
break down slower.
What to Do with Used Oil
Did you know that used engine oil contains certain
elements that may be
unhealthy -for your skin and could
even cause cancer? Don’t let used oil stay on
your skin
for very long. Clean your skin and nails with soap and
water, or a good hand cleaner. Wash or properly throw
away clothing or rags containing used engine
oil. (See
the manufacturer’s warnings .about the use and disposal
of oil products.)
Used
oil can be a real threat to the environment. If you
change your own oil, be sure to drain all free-flowing oil
from the filter before disposal. Don’t ever dispose of oil
by putting it in the trash, pouring it on the ground, into
sewers, or into streams or bodies
of water. Instead,
recycle it by taking it to
a place that collects used oil. If
you have a problem properly disposing of
you used oil,
ask your dealer, a service station or a local recycling
center for help.
I
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Air Cleaner
Before servicing the air cleaner, remove the Powertrain
Control Module (PCM) cover by removing the two wing
nuts. The PCM is located
on the driver’s side front edge
of the engine compartment.
2. Remove the air intake hose that snaps over the
throttle body by pulling the hose upward
and away
from the throttle body. After detaching the hose from
the throttle body, pull back the entire rear portion of
the air cleaner by pulling upward and rearward.
1. Remove the two screws on the air cleaner
housing cover.
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3. Replace the air filter.
4. Re-install the rear section of the air cleaner.
5. Reattach the air intake hose.
Refer to the Maintenance Schedule to determine when to
replace the air filter.
See “Scheduled Maintenance Services”
in the Index.
I
Operating the engine with the air cleaner off
can cause you or others to be burned. The air
cleaner not only cleans the air, it stops flame if
the engine backfires.
If it isn’t there, and the
engine backfires, you could be burned. Don’t
drive with it
off, and be careful working on the
engine with the air cleaner off.
NOTICE:
If the air cleaner is off, a backfire can cause a
damaging engine fire. And, dirt can easily get
into your engine, which will damage it. Always
have the
air cleaner in place when you’re driving.
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Supercharger Oil
Unless you are
technically qualified and have the proper
tools, you should let
your dealer or a
qualified service
center perform this
maintenance.
When to Check
Check oil level every 30,000 miles (50 000 km) or every
36 months, whichever occurs ,first.
What Kind of Oil to Use
See “Recommended Fluids and Lubricants” in the Index
and use only the recommended oil.
How to Check and Add Oil
Check oil only when the engine is cold. Allow the
engine to cool two to three hours after running.
If you remove the supercharger oil fill plug while
the engine
is hot, pressure may cause hot oil to
blow out
of the oil fill hole. You may be burned.
Do not remove the plug until the engine cools.
1. Remove the wiring harness shield.
2. Clean the area around the oil fill plug before
removing it.
3. Remove the oil fill plug using a Torx@ drive.
4. The oil level is correct when it just reaches the
bottom of the threads of the inspection hole.
5. Replace the oil plug with the O-ring in place. Torque
6. Replace wiring harness shield. to
88 lb-in (10 N-m).
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