2003 CHEVROLET MONTE CARLO fuel

Underbody Maintenance
Chemicals used for ice and snow removal and dust
control can collect on the underbody. If these are not
removed, corrosion and rust can develop on the
underbody parts such as fuel lines, frame, ¯oor pan and
exhaust system even though they have corrosion
protection.
At least every spring, ¯ush these materials from the
underbody with plain water. Clean any areas where mud
and debris can collect. Dirt packed in close areas of
the frame should be loosened before being ¯ushed.
Your dealer or an underbody car washing system can
do this for you.
Chemical Paint Spotting
Some weather and atmospheric conditions can create a
chemical fallout. Airborne pollutants can fall upon and
attack painted surfaces on your vehicle. This damage
can take two forms: blotchy, ring-shaped discolorations,
and small, irregular dark spots etched into the paint
surface.
Although no defect in the paint job causes this, GM will
repair, at no charge to the owner, the surfaces of
new vehicles damaged by this fallout condition within
12 months or 12,000 miles (20 000 km) of purchase,
whichever occurs ®rst.
5-88

Underhood Fuse Block (Upper)
Some fuses are in a fuse block in the engine
compartment on the passenger's side of the vehicle.
See
Engine Compartment Overview on page 5-12for more information on location.
Relays Usage
FUEL PUMP Fuel Pump
DRL RELAY Daytime Running Lamps
A.I.R. RELAY Air Induction Reaction Relay
Relays Usage
CRANK RLY Starter (Crank) Relay
HORNS Horn
FOG LTS Fog Lamps
Fuses Usage
LEFT I/P Left Fuse (Battery)
RT I/P #1 Right Fuse (Battery)
RT I/P #2 Right Fuse (Battery)
U/HOOD #1 Underhood (Top) Fuse Block
HORN RLY Horn Relay
BLANK Blank
BLANK Blank
FOG RLY Fog Lamps Relay
F/PMP RLY Fuel Pump Relay
DRL/EXIT LTSLow (Left Front) & High (Left Front)
Headlamps
EXT LTSLow (Right Front) & High
(Right Front) Headlamps
PCM PCM Battery
A/C HVAC Compressor
RLY (CMPR) Relay & Generator
5-96

Underhood Fuse Block (Lower)
Some fuses are in a fuse block in the engine
compartment on the passenger's side of the vehicle.
See
Engine Compartment Overview on page 5-12for more information on location.
Relays Usage
FAN CONT #3Secondary Cooling Fan
(Passenger's Side)
FAN CONT #2 Cooling Fan Control Relay
FANT CONT #1 Primary Cooling Fan (Driver's Side)
Relays Usage
IGN RELAY Ignition Relay
A/C CMPR HVAC Compressor
Fuses Usage
IGN SW Ignition Switch
RT I/P #3 Rear Defogger, Audio System
U/HOOD #2 Ignition Relay, AIR Pump
COOLING
FANSCooling fans (Battery)
FAN CONT #2
Relays #2 & #3
FAN CON #1 Cooling Fan Control Relays #1
AIR PMP RLYAir Induction Reaction Pump Relay
(Battery)
FUEL INJ Fuel Injectors
TRANS SOL Transmission Solenoids
A/C RLY
(COIL)HVAC Control Relay
ENG DEVICESCanister Purge Solenoid, Mass Air
Flow Sensor (MAF), AIR Pump
Relay & Valve Control
DFI MDL Direct Fire Ignition Module
OXY SENOxygen Sensors
(Pre and Post Converter)
5-97

Capacities and Speci®cations
Please refer toPart D: Recommended Fluids and Lubricants on page 6-16for more information.
ApplicationCapacities
English Metric
Air Conditioning Refrigerant R-134a 2.4 lbs 1.1 kg
Automatic Transaxle
Pan Removal and Replacement
After Complete Overhaul
When draining/replacing converter, more ¯uid may be
needed.
7.4 quarts
10 quarts7.0 L
9.5 L
Cooling System Including Reservoir
3400 (Code E) V6
3800 (Code K) V611.3 quarts
11.7 quarts10.7 L
11.0 L
Engine Oil with Filter
3400 (Code E) V6
3800 (Code K) V64.0 quarts
4.5 quarts3.8 L
4.2 L
Fuel Tank 17.0 gallons 64.0 L
All capacities are approximate. When adding, be sure to ®ll to the approximate level, as recommended in this
manual. See
Part D: Recommended Fluids and Lubricants on page 6-16.
5-98

Maintenance Schedule......................................6-2
Introduction...................................................6-2
Your Vehicle and the Environment....................6-2
Maintenance Requirements..............................6-2
How This Section is Organized.........................6-3
Part A: Scheduled Maintenance Services...........6-4
Using Your Maintenance Schedule....................6-4
Scheduled Maintenance...................................6-5
Part B: Owner Checks and Services................6-10
At Each Fuel Fill..........................................6-10
At Least Once a Month.................................6-10
At Least Twice a Year...................................6-11At Least Once a Year...................................6-11
Part C: Periodic MaintenanceInspections.........6-14
Steering, Suspension and Front Drive Axle
Boot and Seal Inspection............................6-14
Exhaust System Inspection............................6-14
Fuel System Inspection..................................6-15
Engine Cooling System Inspection...................6-15
Throttle System Inspection.............................6-15
Brake System Inspection................................6-15
Part D: Recommended Fluids and
Lubricants................................................6-16
Part E: Maintenance Record...........................6-17
Section 6 Maintenance Schedule
6-1

Part A: Scheduled Maintenance
Services
This part contains engine oil scheduled maintenance
which explains the engine oil life system and how
it indicates when to change the engine oil and ®lter.
Also, listed are scheduled maintenance services which
are to be performed at the mileage intervals speci®ed.
Using Your Maintenance Schedule
We at General Motors want to keep your vehicle in good
working condition. But we don't know exactly how
you'll drive it. You may drive short distances only a few
times a week. Or you may drive long distances all
the time in very hot, dusty weather. You may use your
vehicle in making deliveries. Or you may drive it to
work, to do errands or in many other ways.
Because of the different ways people use their vehicles,
maintenance needs may vary. You may need more
frequent checks and replacements. So please read the
following and note how you drive. If you have
questions on how to keep your vehicle in good condition,
see your dealer.This part tells you the maintenance services you should
have done and when to schedule them.
When you go to your dealer for your service needs,
you'll know that GM-trained and supported service
people will perform the work using genuine GM parts.
The proper ¯uids and lubricants to use are listed in
Part D. Make sure whoever services your vehicle uses
these. All parts should be replaced and all necessary
repairs done before you or anyone else drives the
vehicle.
This schedule is for vehicles that:·carry passengers and cargo within recommended
limits. You will ®nd these on your vehicle's
Tire-Loading Information label. See
Loading Your
Vehicle on page 4-32.
·are driven on reasonable road surfaces within legal
driving limits.
·use the recommended fuel. SeeGasoline Octane
on page 5-4
.
6-4

Scheduled Maintenance
The services shown in this schedule up to 100,000 miles
(166 000 km) should be repeated after 100,000 miles
(166 000 km) at the same intervals for the life of
this vehicle. The services shown at 150,000 miles
(240 000 km) should be repeated at the same interval
after 150,000 miles (240 000 km) for the life of this
vehicle.
See
Part B: Owner Checks and Services on page 6-10andPart C: Periodic MaintenanceInspections on
page 6-14.
Footnotes
²The U.S. Environmental Protection Agency or the
California Air Resources Board has determined that the
failure to perform this maintenance item will not nullify
the emission warranty or limit recall liability prior to
the completion of the vehicle 's useful life. We, however,
urge that all recommended maintenance services be
performed at the indicated intervals and the
maintenance be recorded.
Whenever the tires are rotated, the Tire In¯ation Monitor
System (if equipped) must be reset.
+A good time to check your brakes is during tire
rotation. See Brake System Inspection on page 6-15.
Engine Oil Scheduled Maintenance
Change engine oil and ®lter as indicated by the GM
Oil Life System (or every 12 months, whichever
occurs ®rst). Reset the 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.
6-5

Part B: Owner Checks and Services
Listed in this part are owner checks and services
which should be performed at the intervals speci®ed to
help ensure the safety, dependability and emission
control performance of your vehicle.
Be sure any necessary repairs are completed at once.
Whenever any ¯uids or lubricants are added to your
vehicle, make sure they are the proper ones, as shown
in Part D.
At Each Fuel Fill
It is important for you or a service station attendant to
perform these underhood checks at each fuel ®ll.
Engine Oil Level Check
Check the engine oil level and add the proper oil if
necessary. SeeEngine Oil on page 5-16for further
details.
Engine Coolant Level Check
Check the engine coolant level and add DEX-COOLž
coolant mixture if necessary. SeeEngine Coolant
on page 5-26for further details.
Windshield Washer Fluid Level Check
Check the windshield washer ¯uid level in the windshield
washer tank and add the proper ¯uid if necessary.
See
Windshield Washer Fluid on page 5-43for further
details.
At Least Once a Month
Tire In¯ation Check
Visually inspect your tires and make sure tires are
in¯ated to the correct pressures. Don't forget to check
your spare tire. See
Tires on page 5-59for further
details.
Cassette Tape Player Service
Clean cassette tape player. Cleaning should be done
every 50 hours of tape play. SeeAudio System(s)
on page 3-56for further details.
6-10