check engine CHEVROLET EXPRESS 2010 Workshop Manual

When the Change Engine Oil Soon message displays,
certain services, checks, and inspections are required.
The services described for MaintenanceIshould be
performed at every engine oil change. The services
described for MaintenanceIIshould be performed when:
•MaintenanceIwas performed the last time the
engine oil was changed.
•It has been 10 months or more since the Change
Engine Oil Soon message has displayed or since the
last service.
MaintenanceI
•Change engine oil and filter. SeeEngine Oil on
page 6-15.An Emission Control Service.
•Engine coolant level check. SeeEngine Coolant on
page 6-29.
•Windshield washer fluid level check. SeeWindshield
Washer Fluid on page 6-39.
•Tire inflation check. SeeInation - Tire Pressure on
page 6-68.
•Tire wear inspection. SeeTire Inspection and
Rotation on page 6-75.
•Rotate tires. SeeTire Inspection and Rotation on
page 6-75.
•Fluids visual leak check (or every 12 months,
whichever occurs first). A leak in any system must
be repaired and the fluid level checked.
•Engine air cleaner filter inspection (vehicles driven
in dusty conditions only). SeeEngine Air
Cleaner/Filter on page 6-20.
•Brake system inspection (or every 12 months,
whichever occurs first).
7-4

MaintenanceII
•Perform all services described in MaintenanceI.
•Steering and suspension inspection. Visual
inspection for damaged, loose, or missing parts or
signs of wear.
•Lubricate the front suspension, kingpin bushings,
steering linkage, and rear driveline center splines.
•Engine cooling system inspection. Visual inspection
of hoses, pipes, fittings, and clamps and
replacement, if needed.
•Windshield wiper blade inspection for wear,
cracking, or contamination and windshield and wiper
blade cleaning, if contaminated. SeeWindshield
and Wiper Blades on page 6-106. Worn or damaged
wiper blade replacement. SeeWindshield Wiper
Blade Replacement on page 6-59.
•Body hinges and latches, key lock cylinders, folding
seat hardware, and rear compartment hinges,
linkage, and handle pivot points lubrication. See
Recommended Fluids and Lubricants on page 7-12.
More frequent lubrication may be required when
vehicle is exposed to a corrosive environment.
Applying silicone grease on weatherstrips with a
clean cloth makes them last longer, seal better, and
not stick or squeak.
•Restraint system component check. SeeChecking
the Restraint Systems on page 2-80.
•Automatic transmission fluid level check and adding
fluid, if needed. SeeAutomatic Transmission Fluid
(4-Speed Transmission) on page 6-21orAutomatic
Transmission Fluid (6-Speed Transmission) on
page 6-24.
•All-wheel drive vehicles: Transfer case fluid level
check and adding fluid, if needed.
7-5

•Engine air cleaner filter inspection. SeeEngine Air
Cleaner/Filter on page 6-20.
•Vehicles with diesel engine or GVWR above
4 536 kg (10,000 lbs) only: Shields inspection
for damage or looseness. Adjust or replace as
required. This is a Noise Emission Control Service.
Applicable to vehicles sold in the United States
and recommended for vehicles sold in Canada.
Additional Required Services
At the First 160 km/100 Miles,
1 600 km/1,000 Miles, and 10 000 km/
6,000 Miles
•
For vehicles with dual wheels: Check dual wheel
nut torque. For proper torque, seeCapacities
and Specications on page 6-116.
At Each Fuel Stop
•
Engine oil level check. SeeEngine Oil on
page 6-15.
•Engine coolant level check. SeeEngine Coolant on
page 6-29.
•Windshield washer fluid level check. SeeWindshield
Washer Fluid on page 6-39.
Once a Month
•
Tire inflation check. SeeInation - Tire Pressure on
page 6-68.
•Tire wear inspection. SeeTire Inspection and
Rotation on page 6-75.
Once a Year
•
Starter switch check. SeeOwner Checks and
Services on page 7-10.
•Parking brake and automatic transmission P (Park)
mechanism check. SeeOwner Checks and
Services on page 7-10.
•Automatic transmission shiftlock control system
check. SeeOwner Checks and Services on
page 7-10.
•Ignition transmission lock check. SeeOwner
Checks and Services on page 7-10.
•Engine cooling system and pressure cap pressure
check. Radiator and air conditioning condenser
outside cleaning. SeeCooling System on
page 6-28.
7-6

•Exhaust system and nearby heat shields inspection
for loose or damaged components.
•Throttle system inspection for interference, binding
or for damaged or missing parts. Replace parts
as needed. Replace any components that have
high effort or excessive wear. Do not lubricate
accelerator or cruise control cables.
First Engine Oil Change After Every
40 000 km/25,000 Miles
•
Fuel system inspection for damage or leaks.
First Engine Oil Change After Every
80 000 km/50,000 Miles
•
Engine air cleaner filter replacement. SeeEngine
Air Cleaner/Filter on page 6-20.
•Automatic transmission fluid change (severe
service) for vehicles mainly driven in heavy
city traffic in hot weather, in hilly or mountainous
terrain, when frequently towing a trailer, or used
for taxi, police, or delivery service. SeeAutomatic
Transmission Fluid (4-Speed Transmission) on
page 6-21orAutomatic Transmission Fluid
(6-Speed Transmission) on page 6-24.
•All-wheel drive only: Transfer case fluid change
(severe service) for vehicles mainly driven when
frequently towing a trailer, or used for taxi, police, or
delivery service. Check vent hose at transfer case for
kinks and proper installation. Check to be sure vent
hose is unobstructed, clear, and free of debris.
During any maintenance, if a power washer is used
to clean mud and dirt from the underbody, care
should be taken to not directly spray the transfer
case output seals. High pressure water can
overcome the seals and contaminate the transfer
case fluid. Contaminated fluid will decrease the life
of the transfer case and should be replaced.
•Evaporative control system inspection. Check all
fuel and vapor lines and hoses for proper hook-up,
routing, and condition. Check that the purge valve, if
the vehicle has one, works properly. Replace as
needed.An Emission Control Service. The 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.
7-7

First Engine Oil Change After Every
160 000 km/100,000 Miles
•
Automatic transmission fluid change (normal
service). SeeAutomatic Transmission Fluid
(4-Speed Transmission) on page 6-21orAutomatic
Transmission Fluid (6-Speed Transmission) on
page 6-24.
•All-wheel drive only: Transfer case fluid change
(normal service). Check vent hose at transfer
case for kinks and proper installation. Check to be
sure vent hose is unobstructed, clear, and free
of debris. During any maintenance, if a power
washer is used to clean mud and dirt from the
underbody, care should be taken to not directly
spray the transfer case output seals. High pressure
water can overcome the seals and contaminate
the transfer case fluid. Contaminated fluid will
decrease the life of the transfer case and should
be replaced.
•Spark plug replacement and spark plug wires
inspection.An Emission Control Service.
First Engine Oil Change After Every
240 000 km/150,000 Miles
•
Engine cooling system drain, flush, and refill,
cooling system and cap pressure check, and
cleaning of outside of radiator and air conditioning
condenser (or every 5 years, whichever occurs
first). SeeEngine Coolant on page 6-29.
An Emission Control Service.
•Engine accessory drive belt inspection for fraying,
excessive cracks, or obvious damage and
replacement, if needed.An Emission Control
Service.
7-8

Scheduled Maintenance
Service MaintenanceIMaintenanceII
Change engine oil and filter. Reset oil life system.••
Engine coolant level check.••
Windshield washer fluid level check.••
Tire inflation pressures check.••
Tire wear inspection.••
Rotate tires.••
Fluids visual leak check.••
Engine air cleaner filter inspection (vehicles driven in dusty conditions only).••
Brake system inspection.••
Chassis components lubrication.•
Steering and suspension inspection.•
Engine cooling system inspection.•
Windshield wiper blades inspection.•
Body components lubrication.•
Restraint system components check.•
Automatic transmission fluid level check.•
All-wheel drive only: Transfer case fluid level check.•
Engine air cleaner filter inspection (vehicles not driven in dusty conditions).•
Shields inspection.•
7-9

Owner Checks and Services
Starter Switch Check
{WARNING:
When you are doing this inspection, the vehicle
could move suddenly. If the vehicle moves, you or
others could be injured.
1. Before starting this check, be sure there is enough
room around the vehicle.
2. Firmly apply both the parking brake and the regular
brake. SeeParking Brake on page 3-36.
Do not use the accelerator pedal, and be ready to
turn off the engine immediately if it starts.
3. Try to start the engine in each gear. The vehicle
should start only in P (Park) or N (Neutral). If the
vehicle starts in any other position, contact
your dealer/retailer for service.
Automatic Transmission Shift Lock
Control System Check
{WARNING:
When you are doing this inspection, the vehicle
could move suddenly. If the vehicle moves, you or
others could be injured.
1. Before starting this check, be sure there is enough
room around the vehicle. It should be parked on a
level surface.
2. Firmly apply the parking brake. SeeParking Brake
on page 3-36.
Be ready to apply the regular brake immediately if
the vehicle begins to move.
3. With the engine off, turn the ignition to ON/RUN,
but do not start the engine. Without applying the
regular brake, try to move the shift lever out
of P (Park) with normal effort. If the shift lever
moves out of P (Park), contact your dealer/retailer
for service.
7-10

Ignition Transmission Lock Check
While parked, and with the parking brake set, try to turn
the ignition to LOCK/OFF in each shift lever position.
•The ignition should turn to LOCK/OFF only
when the shift lever is in P (Park).
•The ignition key should come out only in
LOCK/OFF.
Contact your dealer/retailer if service is required.
Parking Brake and Automatic
Transmission P (Park) Mechanism
Check
{WARNING:
When you are doing this check, the vehicle could
begin to move. You or others could be injured and
property could be damaged. Make sure there is
room in front of the vehicle in case it begins to roll.
Be ready to apply the regular brake at once
should the vehicle begin to move.Park on a fairly steep hill, with the vehicle facing
downhill. Keeping your foot on the regular brake,
set the parking brake.
•To check the parking brake’s holding ability:
With the engine running and the transmission
in N (Neutral), slowly remove foot pressure from
the regular brake pedal. Do this until the vehicle
is held by the parking brake only.
•To check the P (Park) mechanism’s holding
ability: With the engine running, shift to P (Park).
Then release the parking brake followed by
the regular brake.
Contact your dealer/retailer if service is required.
7-11

Service Publications Ordering
Information
Service Manuals
Service Manuals have the diagnosis and repair
information on engines, transmission, axle suspension,
brakes, electrical, steering, body, etc.
Service Bulletins
Service Bulletins give additional technical service
information needed to knowledgeably service
General Motors cars and trucks. Each bulletin
contains instructions to assist in the diagnosis
and service of your vehicle.
Owner Information
Owner publications are written specifically for owners
and intended to provide basic operational information
about the vehicle. The owner manual includes the
Maintenance Schedule for all models.
In-Portfolio: Includes a Portfolio, Owner Manual, and
Warranty Booklet.
RETAIL SELL PRICE: $35.00 (U.S.) plus processing fee
Without Portfolio: Owner Manual only.
RETAIL SELL PRICE: $25.00 (U.S.) plus processing fee
Current and Past Model Order Forms
Technical Service Bulletins and Manuals are available
for current and past model GM vehicles. To request
an order form, specify year and model name of
the vehicle.
ORDER TOLL FREE: 1-800-551-4123
Monday-Friday 8:00 AM - 6:00 PM
Eastern Time
For Credit Card Orders Only
(VISA-MasterCard-Discover), visit Helm, Inc.
on the World Wide Web at: helminc.com
Or you can write to:
Helm, Incorporated
P.O. Box 07130
Detroit, MI 48207
Prices are subject to change without notice and without
incurring obligation. Allow ample time for delivery.
Note to Canadian Customers: All listed prices are
quoted in U.S. funds. Canadian residents are to make
checks payable in U.S. funds.
8-17

A
Accessories and Modifications............................ 6-3
Accessory Power............................................3-23
Accessory Power Outlets.................................4-14
Additives, Fuel................................................. 6-7
Add-On Electrical Equipment...........................6-109
Air Cleaner/Filter, Engine.................................6-20
Air Conditioning..............................................4-15
Airbag
Adding Equipment to Your Airbag-Equipped
Vehicle...................................................2-79
Airbag System
Airbag Off Switch........................................2-70
How Does an Airbag Restrain?......................2-67
Passenger Sensing System...........................2-73
Servicing Your Airbag-Equipped Vehicle..........2-78
What Makes an Airbag Inflate?......................2-67
What Will You See After an Airbag Inflates?....2-68
When Should an Airbag Inflate?....................2-65
Where Are the Airbags?...............................2-63
Airbags
Off Light.....................................................4-24
Passenger Status Indicator...........................4-25
Readiness Light..........................................4-23
System Check.............................................2-60
All-Wheel Drive...............................................6-49
All-Wheel-Drive (AWD) System........................... 5-8Antenna
Fixed Mast.................................................4-78
Antilock Brake System (ABS)............................. 5-4
Warning Light.............................................4-28
Appearance Care
Aluminum Wheels......................................6-107
Care of Safety Belts...................................6-104
Chemical Paint Spotting..............................6-108
Cleaning Exterior Lamps/Lenses..................6-105
Fabric/Carpet............................................6-103
Finish Care...............................................6-106
Finish Damage..........................................6-108
Instrument Panel, Vinyl, and Other Plastic
Surfaces...............................................
6-104
Interior Cleaning........................................6-102
Sheet Metal Damage..................................6-107
Tires........................................................6-107
Underbody Maintenance.............................6-108
Washing Your Vehicle.................................6-105
Weatherstrips............................................6-105
Windshield and Wiper Blades......................6-106
Ashtray.........................................................4-15
Assistance Program, Roadside........................... 8-8
Audio System.................................................4-59
Audio Steering Wheel Controls......................4-77
Radio Reception..........................................4-78
Setting the Clock.........................................4-60
Theft-Deterrent Feature................................4-77
1