5. Put the cap back on the coolantrecovery tank, but leave the
pressure cap off.
6. Start the engine and let it run until you can feel the upper
radiator hose getting hot. Watch
out for the engine cooling fan.
7. By this time, the coolant level inside the radiator filler neck may
be lower. If the level is lower,
add more of the proper coolant
mixture through the filler neck
until the level reaches the base
of the filler neck.
8. Then replace the pressure cap. At any time during this procedure
if coolant begins to flow out of the
filler neck, reinstall the pressure
cap. Be sure the ears on the
pressure cap are in line with
the vent tube.Engine Overheating
A coolant temperature gage is
located on the vehicle’s instrument
panel. See Engine Coolant
Temperature Gage on page 4-11 .
Check to see if the electric engine
cooling fan is running. If the engine
is overheating, the fan should be
running. If it is not, the vehicle needs
service.
If no problem is apparent, but the
coolant level is not at or above the
FULL mark, add a 50/50 mixture
of clean, drinkable water and
DEX-COOL
®coolant at the coolant
recovery tank. See Engine Coolant
on page 9-19 for more information
about the proper coolant mixture.
If the coolant inside the coolant
recovery tank is boiling, do not do
anything else until it cools down.
The vehicle should be parked on
a level surface.
If Steam Is Coming From Your
Engine
{CAUTION
Steam from an overheated engine
can burn you badly, even if you
just open the hood. Stay away
from the engine if you see or hear
steam coming from it. Just turn it
off and get everyone away from
the vehicle until it cools down. Wait
until there is no sign of steam or
coolant before you open the hood.
If you keep driving when your
engine is overheated, the liquids
in it can catch fire. You or others
could be badly burned. Stop your
engine if it overheats, and get
out of the vehicle until the engine
is cool.
Notice: If the engine catches
re because of being driven with
no coolant, your vehicle can be
badly damaged. The costly repairs
would not be covered by the
vehicle warranty.
Vehicle Care 9-23
FusesUsage
1 Electric
Cooling Fans
2 Electric
Cooling Fans
3 Antilock Braking
System (ABS),
Vehicle Stability
Control SystemFuses
Usage
4 ABS, Vehicle
Stability Control
System
5 Air Conditioning
System
6 Charging System
7 Electric Power
Steering
Fuses
Usage
8 Emission Control
System Main, Horn,
Ignition 2
9 Headlamp Main
10 Emission Control
System 2
11 Multiport Fuel
Injection System/
Sequential Multiport
Fuel Injection
System
12 Driver Side
Headlamp
13 Passenger Side
Headlamp
14 Driver Side
Low-Beam
Headlamp,
Front Foglamps
15 Passenger Side
Low-Beam
Headlamp
16 Multiport Fuel
Injection System/
Sequential Multiport
Fuel Injection
System
Vehicle Care 9-39
FusesUsage
8 Outside Rearview
Mirrors, Audio
System, Main Body
Engine Control
Unit (ECU), Clock,
Brake Transmission
Shift Interlock
9 Empty
10 Empty
11 Airbag System,
Multiport Fuel
Injection System/
Sequential Multiport
Fuel Injection
System, Front
Passenger Occupant
Classification
System
12 Gages and Meters
13 Air Conditioning
System, Rear
Window Defogger
14 Windshield Wipers
15 Rear Window WipersFuses Usage
16 Windshield Washer
17 Main Body ECU,
Electric Power
Steering, Electric
Cooling Fans,
Brake Transmission
Shift Interlock,
Antilock Braking
System (ABS),
Multiport Fuel
Injection System/
Sequential Multiport
Fuel Injection
System, Tire
Pressure Monitoring
System (TPMS),
Vehicle Stability
Control System
18 Back-up Lamps,
Charging System,
Rear Window
Defogger
19 Onboard Diagnosis
SystemFuses
Usage
20 Stoplamps, Center
High-Mounted
Stoplamps (CHMSL),
ABS, Vehicle
Stability Control
System, Multiport
Fuel Injection
System/Sequential
Multiport Fuel
Injection System,
Brake Transmission
Shift Interlock
21 Power Door Lock
System
22 Outside Rearview
Mirrors, Audio
System, Main Body
ECU, Clock, Brake
Transmission Shift
Interlock, Cigarette
Lighter
23 All-Wheel Drive
System
24 Front Foglamps
9-42 Vehicle Care
Wheel Alignment and
Tire Balance
The tires and wheels on the vehicle
were aligned and balanced carefully
at the factory to give the longest tire
life and best overall performance.
Adjustments to wheel alignment and
tire balancing will not be necessary
on a regular basis. However, if there
is unusual tire wear or the vehicle
pulls to one side or the other, the
alignment should be checked. If the
vehicle vibrates when driving on a
smooth road, the tires and wheels
might need to be rebalanced.
See your dealer/retailer for proper
diagnosis.
Wheel Replacement
Replace any wheel that is bent,
cracked or badly rusted or corroded.
If wheel nuts keep coming loose, the
wheel, wheel bolts and wheel nuts
should be replaced. If the wheel
leaks air, replace it (except some
aluminum wheels, which can
sometimes be repaired). See your
dealer/retailer if any of these
conditions exist.
Your dealer/retailer will know the
kind of wheel you need.
Each new wheel should have
the same load-carrying capacity,
diameter, width, offset and be
mounted the same way as the
one it replaces.
If you need to replace any of the
wheels, wheel bolts or wheel nuts,
replace them only with new GM
original equipment parts. This way,
you will be sure to have the right
wheel, wheel bolts and wheel nuts
for the vehicle.{CAUTION
Using the wrong replacement
wheels, wheel bolts, or wheel
nuts on your vehicle can be
dangerous. It could affect the
braking and handling of your
vehicle, make your tires lose
air and make you lose control.
You could have a collision in
which you or others could be
injured. Always use the correct
wheel, wheel bolts, and wheel
nuts for replacement.
Notice: The wrong wheel can
also cause problems with bearing
life, brake cooling, speedometer
or odometer calibration, headlamp
aim, bumper height, vehicle
ground clearance, and tire or tire
chain clearance to the body and
chassis.
See If a Tire Goes Flat on page 9-62
for more information.
9-60 Vehicle Care
❑Inspect engine accessory drive
belts (or every 48 months,
whichever occurs first). Visually
inspect belt for fraying, excessive
cracks, or obvious damage.
Replace belt if necessary.
An Emission Control Service.
❑ Replace spark plugs. An Emission
Control Service.
❑ Inspect for tappet noise and
engine vibration. Adjust valve
clearance to factory specifications
if necessary (or every 48 months,
whichever occurs first). An
Emission Control Service.
❑ Inspect fuel tank, cap, cap gasket,
and lines for damage or leaks
(or every 24 months, whichever
occurs first). Replace parts as
needed. An Emission Control
Service. (See footnote †.)
❑ Change manual transmission fluid
every 48 000 km (30,000 miles)
only if your vehicle is used to tow
a trailer. ❑
Change automatic transmission
fluid every 96 000 km
(60,000 miles) if the vehicle is
mainly driven under one or more
of these conditions:
- In heavy city traffic where the outside temperature regularly
reaches 32°C (90°F) or higher.
- In hilly or mountainous terrain.
- When doing frequent trailer towing.
- Uses such as found in taxi, police, or delivery service.
If you do not use your vehicle under
any of these conditions, the uid
does not require changing.
See Recommended Fluids and
Lubricants on page 10-15 for
the proper uid to use.240 000 km (150,000 Miles)
❑ Drain, flush, and refill the
cooling system (or every
5 years, whichever occurs first).
This service can be complex; you
should have your dealer/retailer
perform this service. See Engine
Coolant on page 9-19 for what
to use. Inspect hoses. Clean
radiator, condenser, pressure
cap, and neck. Pressure test
cooling system and pressure cap.
An Emission Control Service.
10-10 Service and Maintenance
Proper procedures to perform these
services can be found in a service
manual. SeeService Publications
Ordering Information on page 12-12 .
•Inspect the front and rear
suspension and steering system
for damaged, loose, or missing
parts or signs of wear. Inspect
power steering cables for proper
hook-up, binding, cracks, chafing,
etc. Clean and then inspect the
drive axle boot seals for damage,
tears, or leakage. Replace seals if
necessary.
•Inspect the complete exhaust
system. Inspect the body near
the exhaust system. Look for
broken, damaged, missing, or
out-of-position parts as well as
open seams, holes, loose
connections, or other conditions
which could cause a heat build-up
in the floor pan or could let
exhaust fumes into the vehicle.
SeeEngine Exhaust on
page 8-23.
•Inspect the complete fuel system
for damage or leaks.
•Inspect the cooling system
hoses and have them replaced
if they are cracked, swollen or
deteriorated. Inspect all pipes,
fittings and clamps; replace as
needed. Clean the outside of
the radiator and air conditioning
condenser. To help ensure proper
operation, a pressure test of the
cooling system and pressure cap
is recommended at least once
a year.
•Inspect the throttle system for
interference or binding, and for
damaged or missing parts.
Replace parts as needed.
Replace any components that
have high effort or excessive
wear. Do not lubricate accelerator
and cruise control cables.
•Inspect the complete brake
system. Inspect brake lines
and hoses for proper hook-up,
binding, leaks, cracks, chafing,
etc. Inspect disc brake pads for
wear and rotors for surface
condition. Inspect other brake
parts, including calipers, parking
brake, etc. You may need to have
your brakes inspected more often
if your driving habits or conditions
result in frequent braking.
10-14 Service and Maintenance