2004 CHEVROLET MONTE CARLO check engine

A. Windshield Washer Fluid Reservoir.
SeeWindshield Washer Fluid on page 5-48.
B. Battery. SeeBattery on page 5-53.
C. Remote Positive (+) Terminal.
SeeJump Starting on page 5-54.
D. Upper Underhood Fuse Block.
See “Upperhood Fuse Block (Upper)” under
Fuses and Circuit Breakers on page 5-104.
E. Lower Underhood Fuse Block.
See “Underhood Fuse Block (Lower)” under
Fuses and Circuit Breakers on page 5-104.
F. Radiator Pressure Cap.
SeeRadiator Pressure Cap on page 5-34.
G. Engine Coolant Recovery Tank.
SeeCooling System on page 5-37.
H. Power Steering Fluid Reservoir.
SeePower Steering Fluid on page 5-47.I. Electric Cooling Fan.
SeeCooling Systemon page 5-37.
J. Engine Oil Fill Cap.
See “Checking Engine Oil” under
Engine Oil on page 5-18.
K. Engine Oil Dipstick.
See “Checking Engine Oil” under
Engine Oil on page 5-18.
L. Bleed Valves (underneath engine shield).
See “How to Add Coolant to the Radiator”
underCooling System on page 5-37.
M. Transaxle Fluid Dipstick.
SeeAutomatic Transaxle Fluid on page 5-28.
N. Brake Master Cylinder Reservoir.
SeeBrakes on page 5-50.
O. Engine Air Cleaner/Filter.
SeeEngine Air Cleaner/Filter on page 5-26.
5-13

A. Windshield Washer Fluid Reservoir.
SeeWindshield Washer Fluid on page 5-48.
B. Battery. SeeBattery on page 5-53.
C. Remote Positive (+) Terminal.
SeeJump Starting on page 5-54.
D. Upper Underhood Fuse Block.
See “Upperhood Fuse Block (Upper)” under
Fuses and Circuit Breakers on page 5-104.
E. Lower Underhood Fuse Block.
See “Underhood Fuse Block (Lower)” under
Fuses and Circuit Breakers on page 5-104.
F. Radiator Pressure Cap.
SeeRadiator Pressure Cap on page 5-34.
G. Engine Coolant Recovery Tank.
SeeCooling System on page 5-37
H. Power Steering Fluid Reservoir
(low in engine compartment).
SeePower Steering Fluid on page 5-47.I. Electric Cooling Fan.
SeeCooling System on page 5-37.
J. Engine Oil Dipstick.
See “Checking Engine Oil” under
Engine Oil on page 5-18.
K. Engine Oil Fill Cap.
See “Checking Engine Oil” under
Engine Oil on page 5-18.
L. Bleed Valves (underneath engine shield).
See “How to Add Coolant to the Radiator”
underCooling System on page 5-37.
M. Transaxle Fluid Dipstick.
SeeAutomatic Transaxle Fluid on page 5-28.
N. Brake Master Cylinder Reservoir.
SeeBrakes on page 5-50.
O. Engine Air Cleaner/Filter.
SeeEngine Air Cleaner/Filter on page 5-26.
5-15

Engine Oil
Checking Engine Oil
It is 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.
The engine oil dipstick handle is a yellow loop. See
Engine Compartment Overview on page 5-12for
the location of the engine oil dipstick.
Turn off the engine and give the oil several minutes to
drain back into the oil pan. If you don’t, the oil
dipstick might not show the actual level.
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.3400 (Code E) V6 Engine
3800 (Code K) V6 Engine
5-18

Engine Oil Additives
Do not add anything to your oil. The recommended oils
with the starburst symbol that meet GM Standard
GM6094M are all you will need for good performance
and engine protection.
When to Change Engine Oil
(GM Oil Life System)
Your vehicle has a computer system that lets you know
when to change the engine oil and lter. This is based on
engine revolutions and engine temperature, and not on
mileage. Based on driving conditions, the mileage at
which an oil change will be indicated can vary
considerably. For the oil life system to work properly,
you must reset the system every time the oil is changed.
When the system has calculated that oil life has been
diminished, it will indicate that an oil change is necessary.
A CHANGE ENGINE OIL message will come on.
Change your oil as soon as possible within the next two
times you stop for fuel. It is possible that, if you are driving
under the best conditions, the oil life system may not
indicate that an oil change is necessary for over a year.However, your engine oil and lter must be changed at
least once a year and at this time the system must be
reset. Your dealer has GM-trained service people who
will perform this work using genuine GM parts and reset
the system. It is also important to check your oil regularly
and keep it at the proper level.
If the system is ever reset accidentally, you must
change your oil at 3,000 miles (5 000 km) since your
last oil change. Remember to reset the oil life system
whenever the oil is changed.
How to Reset the CHANGE ENGINE OIL
Message
The GM Oil Life System calculates when to change your
engine oil and lter based on vehicle use. Anytime your
oil is changed, reset the system so it can calculate when
the next oil change is required. If a situation occurs where
you change your oil prior to a CHANGE ENGINE OIL
message being turned on, reset the system.
5-22

What to Do with Used Oil
Used engine oil contains certain elements that may be
unhealthy for your skin and could even cause cancer.
Do not 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 dispose of 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 threat to the environment. If you
change your own oil, be sure to drain all the oil from the
lter before disposal. Never 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 your used oil, ask your dealer,
a service station or a local recycling center for help.
Supercharger Oil
Unless you are technically
qualied and have the
proper tools, you should let
your dealer or a qualied
service center perform
this maintenance.
When to Check
Check oil level every 30,000 miles (50 000 km) or
every 36 months, whichever occurs rst.
5-24

What Kind of Oil to Use
Use only the recommended supercharger oil. See
Recommended Fluids and Lubricants on page 6-12.
How to Check and Add Oil
Park the vehicle on a level surface. Check oil only when
the engine is cold. Allow the engine to cool two to
three hours after running.
{CAUTION:
If you remove the supercharger oil ll plug
while the engine is hot, pressure may cause
hot oil to blow out of the oil ll hole. You may
be burned. Do not remove the plug until the
engine cools.1. Clean the area around the oil ll plug before
removing it.
2. Remove the oil ll plug.
3. The oil level is correct when it just reaches the
bottom of the threads of the inspection hole.
4. Replace the oil plug with the O-ring in place.
Tighten to 88 lb-in (10Y).
5-25

Engine Air Cleaner/Filter
When to Inspect the Engine Air
Cleaner/Filter
Inspect the air cleaner/lter at every oil change
and replace at the rst oil change after
25,000 miles (40 000 km).
How to Inspect the Engine Air
Cleaner/Filter
To inspect the air cleaner/lter remove the lter from the
vehicle and lightly shake lter to release loose dust
and dirt. If the lter remains “caked” with dirt, a new lter
is required.
SeeEngine Compartment Overview on page 5-12for
location of air cleaner/lter.1. To check or replace the engine air cleaner/lter do
the following:
Loosen the two clips on the top of the engine air
cleaner/lter housing and lift the lter cover tabs out
of the housing.
2. Push the lter cover housing toward the engine.
3. Pull out the lter.
5-26

4. Check or install a new engine air cleaner/lter.
SeeNormal Maintenance Replacement Parts on
page 6-13.
5. To reinstall the cover, position the tabs through the
slots on the housing. A notch on the sides of the
lter cover will indicate the correct engagement.
Reinstall the two clips on the top of the housing
when you are nished.
Refer to the Maintenance Schedule to determine when
to replace the air lter.
SeeScheduled Maintenance on page 6-4.
{CAUTION:
Operating the engine with the air cleaner/lter
off can cause you or others to be burned.
The air cleaner not only cleans the air,
it helps to stop ame if the engine backres.
CAUTION: (Continued)
CAUTION: (Continued)
If it is not there and the engine backres, you
could be burned. Do not drive with it off, and
be careful working on the engine with the air
cleaner/lter off.
Notice:If the air cleaner/lter is off, a backre can
cause a damaging engine re. And, dirt can
easily get into your engine, which will damage it.
Always have the air cleaner/lter in place when you
are driving.
5-27