2004 PONTIAC GTO engine

Changing a Flat Tire
If a tire goes flat, avoid further tire and wheel damage
by driving slowly to a level place. Turn on your
hazard warning flashers.
{CAUTION:
Changing a tire can be dangerous. The vehicle
can slip off the jack and roll over or fall on you
or other people. You and they could be badly
injured or even killed. Find a level place to
change your tire. To help prevent the vehicle
from moving:
1. Set the parking brake rmly.
2. Put an automatic transmission shift lever
in PARK (P), or shift a manual
transmission to FIRST (1) or
REVERSE (R).
3. Turn off the engine and do not restart
while the vehicle is raised.
4. Do not allow passengers to remain in the
vehicle.
CAUTION: (Continued)
CAUTION: (Continued)
Put the wheel blocks at the front and rear of
the tire farthest away from the one being
changed. That would be the tire on the other
side, at the opposite end of the vehicle.
The following steps will tell you how to use the jack and
change a tire.
5-71

Vehicle Identication
Vehicle Identication Number (VIN)
This is the legal identifier for your vehicle. It appears on
a plate in the front corner of the instrument panel, on
the driver’s side. You can see it if you look through the
windshield from outside your vehicle. The VIN also
appears on the Vehicle Certification and Service Parts
labels and the certificates of title and registration.
Engine Identication
The 8th character in your VIN is the engine code. This
code will help you identify your engine, specifications
and replacement parts.
Service Parts Identication Label
You’ll find this label on your spare tire cover. It’s very
helpful if you ever need to order parts. On this label, you
will find the following:
•VIN
•Model designation
•Paint information
•A list of all production options and special
equipment.
Be sure that this label is not removed from the vehicle.
5-86

Electrical System
Add-On Electrical Equipment
Notice:Don’t add anything electrical to your
vehicle unless you check with your dealer rst.
Some electrical equipment can damage your vehicle
and the damage wouldn’t be covered by your
warranty. Some add-on electrical equipment can
keep other components from working as they
should.
Your vehicle has an air bag system. Before attempting
to add anything electrical to your vehicle, see
Servicing Your Air Bag-Equipped Vehicle on page 1-52.
Fuses and Circuit Breakers
The wiring circuits in your vehicle are protected from
short circuits by fuses, circuit breakers and thermal links
in the wiring itself. This greatly reduces the chance of
fires caused by electrical problems.
Look at the metallic band inside the fuse. If the band is
broken or melted, replace the fuse. Be sure you
replace a bad fuse with a new one of the correct size.
If you ever have a problem on the road and don’t have a
spare fuse, you can borrow one. Just pick some
feature of your vehicle that you can get along
without — like the radio or cigarette lighter — and use
its fuse, if it is the size you need. Replace it as soon as
you can.
Before replacing a fuse, turn every vehicle electrical
switch off.
There are two fuse blocks in your vehicle: the
instrument panel fuse block and the engine compartment
fuse block.
5-87

Engine Compartment Fuse Block
The engine compartment fuse block is located in the
engine compartment and protects all electrical
loads. SeeEngine Compartment Overview on page 5-12
for more information on location.
For access to the main fuses, pull off the cover.
Fuses Usage
INJ/IGN Fuel Injectors and Ignition Modules
INJ/IGN Fuel Injectors and Ignition Modules
ENG
SENSORSEngine Sensors
AUTO TRANS Automatic Transmission
LH HEADLAMP Left Headlamp
RH
HEADLAMPRight Headlamp
ENG. CONT.
BCMEngine and BCM
FUEL PUMP Fuel Pump
SPARE Spare
RAD FAN 1 F/L Engine Cooling Small Fan
BLOWER F/L Blower Fan
MAIN F/L Main
ENGINE F/L Engine
ABS F/L Anti Lock Brakes
LIGHTING F/L Lighting
RAD FAN 2 F/L Engine Cooling Large Fan
REAR
WINDOWHeated Rear Window
SPARE Spare
SPARE Spare
T-RELAX Throttle Relaxer Module
5-90

Relays Usage
FUEL PUMP
RELAYFuel Pump
FOG LAMP
CANCEL
RELAYFog Lamp Cancel
FOG LAMP
RELAYFog Lamp
CRUISE
CANCEL
RELAYCruise Control Cancel
HIGH BEAM
RELAYHigh-Beam Headlamp
DAYTIME
RUNNING
LAMP RELAYDaytime Running Lamps
LOW BEAM
RELAYLow-Beam HeadlampRelays Usage
A/C RELAY Air Conditioning
HORN RELAY Horn
RAD FAN LOW
SPEED RELAYEngine Cooling Fan 1
RAD FAN
HIGH SPEED
RELAYEngine Cooling Fan 2
ENGINE
CONT. RELAYEngine Controls
HEATED REAR
WINDOW
RELAYRear Window Defogger
BLOWER
RELAYBlower
START RELAY Start
5-91

Capacities and Specications
The following approximate capacities are given in English and metric conversions.
Please refer toRecommended Fluids and Lubricants on page 6-13for more information.
Capacities and Specications
ApplicationCapacities
English Metric
Air Conditioning Refrigerant R134a 1.8 lbs 0.8 kg
Automatic Transmission (Drain and Refill) 5.3 quarts 5.0 L
Cooling System 15.1 quarts 14.3 L
Engine Oil with Filter (Drain and Refill) 6.5 quarts 6.2 L
Fuel Tank 18.5 gallons 70.0 L
Manual Transmission 4.6 quarts 4.4 L
Rear Axle Fluid 1.7 quarts 1.6 L
Wheel Nut Torque 74–92 lb ft 100–125Y
All capacities are approximate. When adding, be sure to fill to the appropriate level, as recommended in this
manual. Recheck fluid level after filling
Engine Specications
Engine VIN Code Transmission Spark Plug Gap
LS1 V8 G Automatic/Manual 0.040 inches (1.0 mm)
5-92

Maintenance Schedule......................................6-2
Introduction...................................................6-2
Maintenance Requirements..............................6-2
Your Vehicle and the Environment....................6-2
Using Your Maintenance Schedule....................6-3
Scheduled Maintenance...................................6-4
Additional Required Services............................6-6
Maintenance Footnotes...................................6-8Owner Checks and Services............................6-9
At Each Fuel Fill............................................6-9
At Least Once a Month.................................6-10
At Least Once a Year...................................6-10
Recommended Fluids and Lubricants...............6-13
Normal Maintenance Replacement Parts..........6-15
Engine Drive Belt Routing..............................6-16
Maintenance Record.....................................6-17
Section 6 Maintenance Schedule
6-1

Maintenance Schedule
Introduction
Important: Keep engine oil at the proper level and
change as recommended.
Have you purchased the GM Protection Plan? The Plan
supplements your new vehicle warranties. See your
Warranty and Owner Assistance booklet or your dealer
for details.
Maintenance Requirements
Notice:Maintenance intervals, checks, inspections,
replacement parts and recommended uids and
lubricants as prescribed in this manual are
necessary to keep your vehicle in good working
condition. Any damage caused by failure to follow
scheduled maintenance may not be covered by
warranty.
Your Vehicle and the Environment
Proper vehicle maintenance not only helps to keep your
vehicle in good working condition, but also helps the
environment. All recommended maintenance is
important. Improper vehicle maintenance can even
affect the quality of the air we breathe. Improper fluid
levels or the wrong tire inflation can increase the level of
emissions from your vehicle. To help protect our
environment, and to keep your vehicle in good condition,
be sure to maintain your vehicle properly.
6-2