Page 126 of 387

Fuel Gage
Your fuel gage tells you about how much fuel you have
left, when the ignition is on. When the gage reads in the
yellow band, a warning chime will sound and the
CHECK GAGES warning light will go on, if you have
this option.
Here
are some things that some owners ask about. None
of these show a problem with your fuel gage:
At the service station, the gas pump shuts off before
It takes a little more or less fuel to fill up than the
the
gage reads
FULL (F).
gage indicated. For example, the gage may have
indicated the tank was half full, but it actually took a
little more or less than half the tank's capacity to fill
the tank.
0 The gage moves a little when you turn a corner,
The gage doesn't go back to EMPTY (E) when you
If you have the large span (220") gage, the needle
speed up, or make a hard stop.
turn off the ignition.
moves more
for a given amount of fuel. This does not
indicate excessive
fuel consumption, and is normal.
Boost Gage (Option)
OST
Vehicles equipped with the supercharged engine have
this boost gage that indicates vacuum during light to.
moderate throttle and boost under heavier throttle. The
gage displays the air pressure level in psi going into the
engine's combustion chamber.
The gage
is automatically centered at zero psi every
time the engine is started. Actual vacuum or boost is
displayed from this zero point. Changes
in ambient
pressure, such as driving in mountains and changing
weather, will slightly change the zero reading.
ProCarManuals.com
Page 257 of 387

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.
6-12
ProCarManuals.com
Page 307 of 387
Fuse
1
2
3
4
5
6
7
8
9
10
11
12
Usage
Door Locks
Trunk Release, RAC
Horns
Not Used
Miscellaneous Engines Controls
Fuel
Pump
Injectors
Powertrain Control Module
Not Used
' Not Used
AJC Programmer
Not Used
4
ProCarManuals.com