check engine PONTIAC BONNEVILLE 2003 Service Manual

1 -J can __ burned if you spill coolant -.I hot
engine parts. Coolant contains ethylene glycol,
and
it will burn if the engine parts are hot
enough. Don’t spill coolant on a hot engine.
~~ ~ ~~
Occasionally check the coolant level in the radiator.
For information on how to add coolant to the radiator,
see
Cooling System on page 5-32.
Radiator Pressure Cap
Notice: Your radiator cap is a pressure-type cap
and must be tightly installed to prevent coolant
loss
and possible engine damage from overheating.
Be sure the arrows on the cap line up with the
overflow tube on the radiator filler
neck.
See Engine Compartment Overview on page 5-14 for
more information on location.
Engine Overheating
You will find a coolant temperature gage or a DIC
warning message about a hot engine on your vehicle’s
instrument panel. See
Engine Coolant Temperature
Gage on page 3-45
and DIC Warnings and Messages
on page
3-60.
5-29

The coolant level should be at or above the FULL COLD
mark when the engine is cold. The coolant level
should be at the FULL HOT mark under normal
operating conditions.
If it isn’t, you may have a leak at
the pressure cap or in the radiator hoses, heater hoses,
radiator, water pump or somewhere else in the cooling
syster
If there seems to be no leak, with the engine on, check
to see
if the electric engine cooling fans are running.
If the engine is overheating, both fans should be
running.
If they aren’t, your vehicle needs service.
Notice: Engine damage from running your engine
without coolant
isn’t covered by your warranty.
Notice: When adding coolant, it is important that
you use only
DEX-COOL@ (silicate-free) coolant.
If coolant other than
DEX-COOL is added to
the system, premature engine, heater core or
1
Heater and radiator hoses, and other engine radiator corrosion may result.
-In addition, the engine
parts, can be very hot. Don’t touch them. If you coolant will require change sooner - at 30,000 miles
(50 000 km) or 24 months, whichever occurs first.
do, you can be burned.
Damage caused by the use of coolant other
Don’t run the engine if there
is a leak. If you than DEX-COOL@ is not covered by your new vehicie
run the engine,
it could lose all coolant. That warranty.
could cause an engine fire, and you could be
burned. Get any leak fixed before you drive the
vehicle.
5-33

Power Steering Fluid
The power steering fluid reservoir is located in the rear
of the engine compartment on the passenger side of
the vehicle. See
Engine Compartment Overview
on page
5-74 for more information on location.
When to Check Power Steering Fluid
It is not necessary to regularly check power steering fluid
unless you suspect there is a leak in the system or
you hear an unusual noise. A fluid
loss in this system
could indicate a problem. Have the system inspected
and repaired. See
Engine Compartment Overview
on page
5- 74 for reservoir location.
How to Check Power Steering Fluid
Turn the key off, let the engine compartment cool down,
wipe the cap and the top of the reservoir clean, then
unscrew the cap and wipe the dipstick with a clean rag.
Replace the cap and completely tighten
it. Then
remove the cap again and look at the fluid level on the
dipstick.
The level should be at the
FULL COLD mark. If
necessary, add only enough fluid to bring the level up to
the mark.
What to Use
To determine what kind of fluid to use, see Part D:
Recommended Fluids and Lubricants on page 6-24.
Always use the proper fluid. Failure to use the proper
fluid can cause leaks and damage hoses and seals.
Windshield Washer Fluid
What to Use
When you need windshield washer fluid, be sure to read
the manufacturer’s instructions before use.
If you will
be operating your vehicle in an area where the
temperature may fall below freezing, use a fluid that has
sufficient protection against freezing. See
Engine
Compartment Overview on page
5-14 for reservoir
location.
5-40

Notice: Ignoring these steps could result in costly
damage to your vehicle that wouldn’t be covered
by your warranty.
Trying to start your vehicle by pushing or pulling
it
won’t work, and it could damage your vehicle.
1. Check the other vehicle. It must have a 12-volt
battery with a negative ground system.
Notice:
If the other system isn’t a 12-volt system
with a negative ground, both vehicles can be damaged.
2. Get the vehicles close enough so the jumper cables
can reach, but be sure the vehicles aren’t touching
each other.
If they are, it could cause a ground
connection you don’t want. You wouldn’t be able to
start your vehicle, and the bad grounding could
damage the electrical systems.
To avoid the possibility of the vehicles rolling, set
the parking brake firmly on both vehicles involved in
the jump start procedure. Put an automatic
transaxle in PARK (P) or a manual transmission in
NEUTRAL (N) before setting the parking brake. Notice:
If you
leave your radio on, it could be badly
damaged. The repairs wouldn’t be covered by
your warranty.
3. Turn off the ignition on both vehicles. Unplug
unnecessary accessories plugged into the cigarette
lighter or in the accessory power outlet. Turn
off
the radio and all lamps that aren’t needed. This will
avoid sparks and help save both batteries. And it
could save your radio!
4. Open the hood on the other vehicle and locate the
positive
(+) and the negative (-) terminal locations
on that vehicle.
Open the hood on your vehicle and find the remote
positive
(+) terminal located in the engine
compartment
on the passenger side of the vehicle.
See
Engine Compartment Overview on page 5-14
for more information on location.
5-47

r
Fans or other moving engine parts can injure
you badly. Keep your hands away from moving parts once the engine
is running.
6. Check that the jumper cables don’t have loose or
missing insulation. If they do, you could get a
shock. The vehicles could be damaged too.
Before you connect the cables, here are some
basic things you should know. Positive
(+) will go to
positive
(+) or to a remote positive (+) terminal if
the vehicle has one. Negative (-) will go to a heavy,
unpainted metal engine part or to a remote
negative
(-) terminal if the vehicle has one.
Don’t connect positive
(+) to negative (-) or you’ll
get a short that would damage the batterv and
maybe other parts too. And don’t connect the
negative
(-) cable to the negative (-) terminal on
the dead battery because this can cause sparks.
7. Connect the red
positive
(+) cable to the
remote positive
(+)
terminal of the
dead battery. Use a
remote positive
(+)
terminal if the vehicle
has one.
8. Don’t !et the other end
touch metal. Connect it
to the positive
(+)
terminal of the good
battery. Use a remote
positive (+) terminal
if the vehicle has one.
5-49

Capacities and Specifications
The following approximate capacities are given in English and metric conversions. Please refer to
Part D: Recommended Fluids and Lubricants on page 6-24 for more information.
Capacities
Capacities
Application English Metric
Automatic Transaxle
7.4 quarts 7.0 L
Engine Cooling System
10.0 quarts 9.5 L
Engine Oil with Filter
4.5 quarts 4.3 L -
Fuel Tank 18.5 gallons 70.0 L
Wheel Nut Torque 1 00 Ib-ft 140 Nam
Air Conditioning Refrigerant R134a 2.2 Ibs. 1 .O kg
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 Specifications
5-1 00

6 Maintenance Schedule
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
Selecting the Right Schedule
........................... 6-5
Part
A: Scheduled Maintenance Services
........... 6.4
Using Your Maintenance Schedule
.................... 6-4
Short Trip/City Scheduled Maintenance
.............. 6-6
Long Trip/Highway Scheduled Maintenance
...... 6-13
Part
B: Owner Checks and Services ................ 6-18
At Each Fuel Fill
.......................................... 6-18
At Least Once a Month 0- IO P 40 .................................
At Least Twice a Year ................................... 6.19
At Least Once a Year
................................... 6.19
Part C: Periodic Maintenance Inspections
......... 6.22
Steering, Suspension and Front Drive Axle
Boot and Seal Inspection
............................ 6-22
Exhaust System Inspection
........................... -6-22
Fuel System Inspection
.................................. 6-22
Engine Cooling System Inspection
................... 6-23
Throttle System Inspection
............................. 6-23
Brake System Inspection
................................ 6-23
Part
D: Recommended Fluids and Lubricants .... 6-24
Part
E: Maintenance Record ........................... 6-26
6- 1

Maintenance Schedule
Introduction
IMPORTANT:
XEEP ENGINE OIL
AT THE PROPER
LEVEL AND CHANGE AS
RECOMMENDED
I
a
protection
Plan
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.
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 procedures
are 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, please maintain your vehicle properly.
Maintenance Requirements
Maintenance intervals, checks, inspections and
recommended fluids and lubricants as prescribed in this
manual are necessary to keep your vehicle in good
working condition. Any damage caused by failure
to follow recommended maintenance may not be
covered by warranty.
6-2

Selecting the Right Schedule
First you’ll need to decide which of the two schedules is
right for your vehicle. Here’s how to decide which
schedule to follow:
Follow the Short Trip/City Scheduled Maintenance
if any
one of these conditions is true for your vehicle:
0 Most trips are less than 5 miles (8 km). This is
particularly important when outside temperatures
are below freezing.
0 Most trips include extensive idling (such as frequent
0 You frequently tow a trailer or use a carrier on top
driving in
stop-and-go traffic).
of your vehicle.
0 If the vehicle is used for delivery service, police,
One of the reasons you should follow this schedule if
you operate your vehicle under any of these conditions
is that these conditions cause engine oil to break
down sooner.
taxi or other commercial application.
Short TriplCity Intervals
Every 3,000 Miles (5 000 km): Engine Oil and Filter
Change (or
3 months, whichever occurs first).
Every 6,000 Miles (IO 000 km): Tire Rotation.
Every 15,000 Miles (25 000 km): Engine Air Cleaner
Filter Inspection,
if driving in dusty conditions.
Every 30,000 Miles (50 000 km): Engine Air Cleaner
Filter Replacement. Supercharger Oil Check
(or every
36 months, whichever occurs first)
(3800 Code 1 V6 engine only).
Every 50,000 Miles (83 000 km): Automatic Transaxle
Service (severe conditions only).
Every 100,000 Miles (166 000 km): Spark Plug Wire
Inspection. Spark Plug Replacement. Automatic
Transaxle Service (normal conditions).
Every 150 000 Miles (240 000 km): Cooling System
Service [nr every 60 months, whichever nccIJrs
first). Engine Accessory Drive Belt Inspection.
These intervals only summarize maintenance services.
Be sure to follow the complete scheduled maintenance
on the following pages.
6-5

Long Trip/Highway Definition
Follow this scheduled maintenance only if none of the
conditions from the Short Trip/City Scheduled
Maintenance are true.
Do not use this schedule if the
vehicle
is used for trailer towing, driven in a dusty area
or used
off paved roads. Use the Short Trip/City
schedule for these conditions
Driving a vehicle with a fully warmed engine under
highway conditions will cause engine oil to break down
slower.
Long Trip/Highway Intervals
Every 7,500 Miles (12 500 km): Engine Oil and Filter
Change (or every 12 months, whichever occurs
first). Tire Rotation.
Every 30,000 Miles (50 000 km): Supercharger Oil
Check (or every 36 months, whichever occurs first)
(3800 Code 1 V6 engine only). Engine Air Cleaner Filter
Replacement.
Every 50,000 Miles (83 000 km): Automatic Transaxle
Service (severe conditions only).
Every 100,000 Miles (166 000 km): Spark Plug Wire
Inspection. Spark Plug Replacement. Automatic
Transaxle Service (normal conditions).
Every 150,000 Miles (240 000 km): Cooling System
Service (or every 60 months, whichever occurs
first). Engine Accessory Drive Belt Inspection.
These intervals only summarize maintenance services.
Be sure to follow the complete scheduled maintenance
on the following pages.
Short Trip/City Scheduled
Maintenance
The services shown in this schedule up to 100,000 miles
(1 66
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 6-18
and Part C: Periodic Maintenance Inspections on
page 6-22.
6-6