check engine CHEVROLET COLORADO 2007 1.G Service Manual

Capacities and Specications (cont’d)
ApplicationCapacities
English Metric
Transmission (Drain and Rell)
Automatic 5.0 qt 4.7 L
Manual 2.3 qt 2.2 L
Wheel Nut Torque 100 lb ft
140Y
All capacities are approximate. When adding, be sure to ll to the appropriate level or as recommended in
this manual. Recheck uid level after lling.
Engine Specications
Type VIN Code Transmission Spark Plug Gap
2.9L 9Automatic
Manual0.040 in (1.01 mm)
3.7L E Automatic 0.040 in (1.01 mm)
438

Maintenance Schedule................................ 440
Introduction............................................... 440
Maintenance Requirements........................ 440
Your Vehicle and the Environment............ 440
Using the Maintenance Schedule............... 440
Scheduled Maintenance............................. 442
Additional Required Services..................... 444
Maintenance Footnotes.............................. 446Owner Checks and Services..................... 447
At Each Fuel Fill....................................... 448
At Least Once a Month............................. 448
At Least Once a Year............................... 449
Recommended Fluids and Lubricants........ 452
Normal Maintenance Replacement Parts..... 454
Engine Drive Belt Routing......................... 455
Maintenance Record.................................. 456
Section 6 Maintenance Schedule
439

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 might 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 uid levels or the wrong
tire ination 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.
Using the Maintenance Schedule
We at General Motors want to help you keep your
vehicle in good working condition. But we do
not know exactly how you will drive it. You may
drive very 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 all the different ways people use their
vehicles, maintenance needs vary. You may
need more frequent checks and replacements.
440

If you want to purchase service information,
seeService Publications Ordering Information
on page 476.
Owner Checks and Services on page 447tells
you what should be checked, when to check it,
and what you can easily do to help keep your
vehicle in good condition.
The proper replacement parts, uids, and
lubricants to use are listed inRecommended
Fluids and Lubricants on page 452andNormal
Maintenance Replacement Parts on page 454.
When your vehicle is serviced, make sure these
are used. All parts should be replaced and all
necessary repairs done before you or anyone
else drives the vehicle. We recommend the
use of genuine GM parts.Scheduled Maintenance
When the CHANGE OIL message comes on, it
means that service is required for your vehicle.
SeeDIC Warnings and Messages on page 202.
Have your vehicle serviced as soon as possible
within the next 600 miles (1 000 km). It is possible
that, if you are driving under the best conditions,
the engine oil life system may not indicate
that vehicle service 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/retailer has
trained service technicians who will perform this
work using genuine parts and reset the system.
If the engine oil life system is ever reset
accidentally, you must service your vehicle within
3,000 miles (5 000 km) since your last service.
Remember to reset the oil life system whenever
the oil is changed. SeeEngine Oil Life System
on page 336for information on the Engine Oil
Life System and resetting the system.
442

When the CHANGE OIL message appears,
certain services, checks, and inspections are
required. Required services are described in the
following for “MaintenanceI” and “MaintenanceII.”
Generally, it is recommended that your rst
service be MaintenanceI, your second service
be MaintenanceII, and that you alternate
MaintenanceIand MaintenanceIIthereafter.
However, in some cases, MaintenanceIImay
be required more often.MaintenanceI— Use MaintenanceIif the
CHANGE OIL message comes on within
10 months since the vehicle was purchased
or MaintenanceIIwas performed.
MaintenanceII— Use MaintenanceIIif the
previous service performed was MaintenanceI.
Always use MaintenanceIIwhenever the
message comes on 10 months or more since
the last service or if the message has not
come on at all for one year.
Scheduled Maintenance
Service MaintenanceIMaintenanceII
Change engine oil and lter. SeeEngine Oil on page 333. Reset oil life system.
SeeEngine Oil Life System on page 336.An Emission Control Service.••
Visually check for any leaks or damage.See footnote (g).••
Inspect engine air cleaner lter. If necessary, replace lter. SeeEngine
Air Cleaner/Filter on page 338.See footnote (j).•
Rotate tires and check ination pressures and wear. SeeTire Inspection
and Rotation on page 390and “Tire Wear Inspection” inAt Least Once
a Month on page 448.••
Inspect brake system.See footnote (a).••
Check engine coolant and windshield washer uid levels and add uid
as needed.••
443

Scheduled Maintenance (cont’d)
Service MaintenanceIMaintenanceII
Perform any needed additional services. See “Additional Required Services”
in this section.••
Inspect suspension and steering components.See footnote (b).•
Inspect engine cooling system.See footnote (c).•
Inspect wiper blades.See footnote (d).•
Inspect restraint system components.See footnote (e).•
Lubricate body components.See footnote (f).•
Check transmission and transfer case uid levels and add uid as needed.•
Additional Required Services
The following services should be performed at the rst maintenance service (IorII) after the indicated miles
(kilometers) shown for each item.
Additional Required Services
Service and Miles (Kilometers)25,000
(40 000)50,000
(80 000)75,000
(120 000)100,000
(160 000)125,000
(200 000)150,000
(240 000)
Inspect fuel system for damage
or leaks.• •••••
Inspect exhaust system for loose
or damaged components.• •••••
444

Lubricate hood safety lever pivot and prop rod
pivot and tailgate latch bolt, handle assembly pivot
points, and hinges. More frequent lubrication
may be required when exposed to a corrosive
environment. Applying silicone grease on
weatherstrips with a clean cloth will make them
last longer, seal better, and not stick or squeak.
(g)A uid loss in any vehicle system could indicate
a problem. Have the system inspected and
repaired and the uid level checked. Add uid
if needed.
(h)Change automatic transmission uid and
lter if the vehicle is mainly driven under one or
more of these conditions:
In heavy city traffic where the outside
temperature regularly reaches 90°F (32°C)
or higher.
In hilly or mountainous terrain.
When doing frequent trailer towing.
Uses such as found in taxi, police,
or delivery service.(i)Drain, ush, and rell cooling system. This
service can be complex; you should have
your dealer/retailer perform this service. See
Engine Coolant on page 345 for what to use.
Inspect hoses. Clean radiator, condenser,
pressure cap, and ller neck. Pressure test the
cooling system and pressure cap.
(j)If you drive regularly under dusty conditions,
inspect the lter at each engine oil change.
(k)Visually inspect belt for fraying, excessive
cracks, or obvious damage. Replace belt if
necessary.
Owner Checks and Services
These owner checks and services should be
performed at the intervals specied to help
ensure the safety, dependability, and emission
control performance of your vehicle. Your
GM Goodwrench
®dealer can assist you with
these checks and services.
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 inRecommended
Fluids and Lubricants on page 452.
447

At Each Fuel Fill
It is important 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 333for
further details.
Notice:It is important to check the engine
oil regularly and keep it at the proper
level. Failure to keep the engine oil at
the proper level can cause damage to the
engine not covered by your warranty.
Engine Coolant Level Check
Check the engine coolant level and add
DEX-COOL®coolant mixture if necessary.
SeeEngine Coolant on page 345for
further details.
Windshield Washer Fluid Level Check
Check the windshield washer uid level in
the windshield washer uid reservoir and
add the proper uid if necessary.
At Least Once a Month
Tire Ination Check
Inspect your vehicle’s tires and make sure they
are inated to the correct pressures. Do not
forget to check the spare tire. SeeInation - Tire
Pressure on page 384. Check to make sure
the spare tire is stored securely. SeeChanging
a Flat Tire on page 400.
Tire Wear Inspection
Tire rotation may be required for high mileage
highway drivers prior to the Engine Oil Life
System service notication. Check the tires for
wear and, if necessary, rotate the tires. See
Tire Inspection and Rotation on page 390.
448

At Least Once a Year
Starter Switch Check
{CAUTION:
When you are doing this inspection, the
vehicle could move suddenly. If the vehicle
moves, you or others could be injured.
1. Before you start, be sure you have enough
room around the vehicle.
2. Firmly apply both the parking brake and the
regular brake. SeeParking Brake on page 133.
Do not use the accelerator pedal, and be ready
to turn off the engine immediately if it starts.3. On automatic transmission vehicles, try to start
the engine in each gear. The vehicle should
start only in PARK (P) or NEUTRAL (N). If the
vehicle starts in any other position, contact
your dealer/retailer for service.
On manual transmission vehicles, put the shift
lever in NEUTRAL, push the clutch pedal down
halfway, and try to start the engine. The vehicle
should start only when the clutch pedal is
pushed down all the way to the oor. If the
vehicle starts when the clutch pedal is not
pushed all the way down, contact your dealer/
retailer for service.
449

Automatic Transmission Shift Lock
Control System Check
{CAUTION:
When you are doing this inspection, the
vehicle could move suddenly. If the vehicle
moves, you or others could be injured.
1. Before you start, be sure you have enough
room around the vehicle. It should be parked
on a level surface.
2. Firmly apply the parking brake. SeeParking
Brake on page 133.
Be ready to apply the regular brake
immediately if the vehicle begins to move.3. With the engine off, turn the ignition to ON, but
do not start the engine. Without applying the
regular brake, try to move the shift lever out of
PARK (P) with normal effort. If the shift lever
moves out of PARK (P), contact your dealer/
retailer for service.Ignition Transmission Lock Check
While parked, and with the parking brake set,
try to turn the ignition to LOCK in each shift lever
position.
With an automatic transmission, the ignition
should turn to LOCK only when the shift
lever is in PARK (P). The ignition key should
come out only in LOCK.
With a manual transmission, the ignition key
should come out only in LOCK.
Contact your dealer/retailer if service is required.
450