2004 CHEVROLET IMPALA engine

California Fuel
If your vehicle is certied to meet California Emission
Standards (see the underhood emission control
label), it is designed to operate on fuels that meet
California specications. If this fuel is not available in
states adopting California emissions standards,
your vehicle will operate satisfactorily on fuels meeting
federal specications, but emission control system
performance may be affected. The malfunction indicator
lamp may turn on (seeMalfunction Indicator Lamp
on page 3-37) and your vehicle may fail a smog-check
test. If this occurs, return to your authorized GM
dealer for diagnosis. If it is determined that the condition
is caused by the type of fuel used, repairs may not be
covered by your warranty.
Additives
To provide cleaner air, all gasolines in the United States
are now required to contain additives that will help
prevent engine and fuel system deposits from forming,
allowing your emission control system to work properly.
You should not have to add anything to your fuel.
However, some gasolines contain only the minimum
amount of additive required to meet U.S. Environmental
Protection Agency regulations. General Motors
recommends that you buy gasolines that are advertised
to help keep fuel injectors and intake valves clean. If your
vehicle experiences problems due to dirty injectors or
valves, try a different brand of gasoline.
Gasolines containing oxygenates, such as ethers and
ethanol, and reformulated gasolines may be available in
your area to contribute to clean air. General Motors
recommends that you use these gasolines, particularly if
they comply with the specications described earlier.
Notice:Your vehicle was not designed for fuel that
contains methanol. Do not use fuel containing
methanol. It can corrode metal parts in your fuel
system and also damage the plastic and rubber
parts. That damage would not be covered under
your warranty.
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Some gasolines that are not reformulated for low
emissions may contain an octane-enhancing additive
called methylcyclopentadienyl manganese tricarbonyl
(MMT); ask the attendant where you buy gasoline
whether the fuel contains MMT. General Motors does
not recommend the use of such gasolines. Fuels
containing MMT can reduce the life of spark plugs and
the performance of the emission control system may
be affected. The malfunction indicator lamp may turn on.
If this occurs, return to your authorized GM dealer for
service.
Fuels in Foreign Countries
If you plan on driving in another country outside the
United States or Canada, the proper fuel may be hard
to nd. Never use leaded gasoline or any other fuel
not recommended in the previous text on fuel.
Costly repairs caused by use of improper fuel would
not be covered by your warranty.
To check the fuel availability, ask an auto club, or
contact a major oil company that does business in the
country where you will be driving.
Filling Your Tank
{CAUTION:
Fuel vapor burns violently and a fuel re can
cause bad injuries. To help avoid injuries to you
and others, read and follow all the instructions
on the pump island. Turn off your engine when
you are refueling. Do not smoke if you are near
fuel or refueling your vehicle. Keep sparks,
ames and smoking materials away from fuel.
Do not leave the fuel pump unattended when
refueling your vehicle — this is against the law
in some places. Keep children away from the
fuel pump; never let children pump fuel.
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Filling a Portable Fuel Container
{CAUTION:
Never ll a portable fuel container while it is in
your vehicle. Static electricity discharge from
the container can ignite the gasoline vapor.
You can be badly burned and your vehicle
damaged if this occurs. To help avoid injury to
you and others:
Dispense gasoline only into approved
containers.
Do not ll a container while it is inside a
vehicle, in a vehicle’s trunk, pickup bed or
on any surface other than the ground.
Bring the ll nozzle in contact with the
inside of the ll opening before operating
the nozzle. Contact should be maintained
until the lling is complete.
Do not smoke while pumping gasoline.
Checking Things Under
the Hood
{CAUTION:
An electric fan under the hood can start up
and injure you even when the engine is not
running. Keep hands, clothing and tools away
from any underhood electric fan.
{CAUTION:
Things that burn can get on hot engine parts
and start a re. These include liquids like fuel,
oil, coolant, brake uid, windshield washer and
other uids, and plastic or rubber. You or
others could be burned. Be careful not to drop
or spill things that will burn onto a hot engine.
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Engine Compartment Overview
When you open the hood on the 3400 V6 (Code E) engine, you’ll see the following:
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A. Windshield Washer Fluid Reservoir. SeeWindshield
Washer Fluid on page 5-46.
B. Battery. SeeBattery on page 5-50.
C. Remote Positive (+) Terminal. SeeJump Starting on
page 5-51.
D. Upper Underhood Fuse Block. See “Upperhood
Fuse Block (Upper)” underFuses and Circuit
Breakers on page 5-103.
E. Lower Underhood Fuse Block. See “Underhood
Fuse Block (Lower)” underFuses and Circuit
Breakers on page 5-103.
F. Radiator Pressure Cap. SeeRadiator Pressure Cap
on page 5-32.
G. Engine Coolant Recovery Tank. SeeCooling System
on page 5-35.
H. Power Steering Fluid Reservoir. SeePower Steering
Fluid on page 5-45.I. Electric Cooling Fan. SeeCooling System on
page 5-35.
J. Engine Oil Fill Cap. See “Checking Engine Oil”
underEngine Oil on page 5-18.
K. Engine Oil Dipstick. See “Checking Engine Oil”
underEngine Oil on page 5-18.
L. Bleed Valves (underneath engine shield).
See “How to Add Coolant to the Radiator” under
Cooling System on page 5-35.
M. Transaxle Fluid Dipstick. SeeAutomatic Transaxle
Fluid on page 5-26.
N. Brake Master Cylinder Reservoir. SeeBrakes on
page 5-47.
O. Engine Air Cleaner/Filter. SeeEngine Air
Cleaner/Filter on page 5-25.
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When you open the hood on the 3800 V6 (Code K) engine, you’ll see the following:
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A. Windshield Washer Fluid Reservoir. SeeWindshield
Washer Fluid on page 5-46.
B. Battery. SeeBattery on page 5-50.
C. Remote Positive (+) Terminal. SeeJump Starting on
page 5-51.
D. Upper Underhood Fuse Block. See “Upperhood
Fuse Block (Upper)” underFuses and Circuit
Breakers on page 5-103.
E. Lower Underhood Fuse Block. See “Underhood
Fuse Block (Lower)” underFuses and Circuit
Breakers on page 5-103.
F. Radiator Pressure Cap. SeeRadiator Pressure Cap
on page 5-32.
G. Engine Coolant Recovery Tank. SeeCooling System
on page 5-35
H. Power Steering Fluid Reservoir (low in engine
compartment). SeePower Steering Fluid on
page 5-45.I. Electric Cooling Fan. SeeCooling System on
page 5-35.
J. Engine Oil Dipstick. See “Checking Engine Oil”
underEngine Oil on page 5-18.
K. Engine Oil Fill Cap. See “Checking Engine Oil”
underEngine Oil on page 5-18.
L. Bleed Valves (underneath engine shield).
See “How to Add Coolant to the Radiator” under
Cooling System on page 5-35.
M. Transaxle Fluid Dipstick. SeeAutomatic Transaxle
Fluid on page 5-26.
N. Brake Master Cylinder Reservoir. SeeBrakes on
page 5-47.
O. Engine Air Cleaner/Filter. SeeEngine Air
Cleaner/Filter on page 5-25.
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When you open the hood on the 3800 V6 Supercharged (Code 1) engine, you’ll see the following:
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