check engine CHEVROLET SILVERADO 2005 1.G Repair Manual

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Scheduled Maintenance (cont’d)
Service MaintenanceIMaintenanceII
Inspect brake system.See footnote (a).••
Check engine coolant and windshield washer uid levels and add uid as
needed.••
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 uid level and add uid as needed.•
Inspect shields, vehicles with diesel engine or with GVWR above 10,000 lbs
(4 536 kg) only.See footnote (n).•
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Maintenance Footnotes
(Gasoline Engine)
This maintenance section applies to vehicles with a
gasoline engine. If your vehicle has a diesel engine,
see the maintenance schedule section in the
DURAMAX
®Diesel Engine Supplement.
†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.
#Lubricate the front suspension, ball joints, steering
linkage, transmission shift linkage, and parking brake
cable guides. Ball joints should not be lubricated unless
their temperature is 10°F (−12°C) or higher, or they
could be damaged. Vehicles used under severe
commercial operating conditions require lubrication
on a regular basis every 3,000 miles (5 000 km).
(a)Visually inspect brake lines and hoses for proper
hook-up, binding, leaks, cracks, chang, etc. Inspect
disc brake pads for wear and rotors for surface
condition. Inspect drum brake linings/shoes for wear or
cracks. Inspect other brake parts, including drums,
wheel cylinders, calipers, parking brake, etc.(b)Visually inspect front and rear suspension and
steering system for damaged, loose or missing parts,
signs of wear or lack of lubrication. Inspect power
steering lines and hoses for proper hook-up, binding,
leaks, cracks, chang, etc. Visually check constant
velocity joints, rubber boots, and axle seals for leaks.
(c)Visually inspect hoses and have them replaced if they
are cracked, swollen, or deteriorated. Inspect all pipes,
ttings and clamps; replace with genuine GM parts as
needed. To help ensure proper operation, a pressure test
of the cooling system and pressure cap and cleaning the
outside of the radiator and air conditioning condenser is
recommended at least once a year.
(d)Visually inspect wiper blades for wear or cracking.
Replace wiper blades that appear worn or damaged
or that streak or miss areas of the windshield.
(e)Make sure the safety belt reminder light and all your
belts, buckles, latch plates, retractors, and anchorages
are working properly. Look for any other loose or
damaged safety belt system parts. If you see anything
that might keep a safety belt system from doing its
job, have it repaired. Have any torn or frayed safety belts
replaced. Also look for any opened or broken airbag
coverings, and have them repaired or replaced.
The airbag system does not need regular maintenance.
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(f)Lubricate all key lock cylinders, body door hinges,
hood latch assembly, secondary latch, pivots, spring
anchor, release pawl, tailgate hinges, tailgate linkage,
tailgate handle pivot points, latch bolt, fuel door
hinge, locks, and folding seat hardware. 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)Check vent hose at transfer case for kinks and
proper installation.
(h)Change automatic transmission uid and lter if the
vehicle Gross Vehicle Weight Rating (GVWR) is
over 8600 lbs or 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 perform
this service. See Engine Coolant on page 5-35 for
what to use. Inspect hoses. Clean radiator, condenser,
pressure cap, and ller neck. Pressure test the
cooling system and pressure cap.(j)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.
(k)Inspect system. Check all fuel and vapor lines and
hoses for proper hook-up, routing, and condition.
Check that the purge valve works properly, if equipped.
Replace as needed.
(l)Change clutch uid (or every 24 months, whichever
occurs rst).
(m)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.
(n)Vehicles with diesel engine or with GVWR above
10,000 lbs (4 536 kg) only: Inspect shields 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.
(p)If you drive regularly under dusty conditions, inspect
the lter or change indicator (if equipped) at each
engine oil change.
(q)Visually inspect belt for fraying, excessive cracks, or
obvious damage. Replace belt if necessary.
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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 in
Recommended Fluids and Lubricants (Gasoline Engine)
on page 6-14.
At the First 100, 1,000 and 6,000 Miles
(160, 1 600 and 10 000 km)
Check dual wheel nut torque. For proper torque,
seeCapacities and Specications on page 5-133.
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 (Gasoline Engine) on
page 5-20for further details.Notice:It is important to check your oil regularly
and keep it at the proper level. Failure to keep your
engine oil at the proper level can cause damage
to your 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 5-35for 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
Visually inspect your vehicle’s tires and make sure they
are inated to the correct pressures. Do not forget to
check the spare tire. SeeTires on page 5-73for further
details. Check to make sure the spare tire is stored
securely. SeeChanging a Flat Tire on page 5-91.
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. SeeTire Inspection and Rotation on
page 5-82.
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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 2-51.
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 PARK (P) or NEUTRAL (N).
If the vehicle starts in any other position,
contact your GM Goodwrench
®dealer for service.
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 2-51.
Be ready to apply the regular brake immediately if
the vehicle begins to move.
3. With the engine off, turn the ignition to RUN, 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 GM Goodwrench
®dealer
for service.
6-12

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Ignition Transmission Lock Check
While parked, and with the parking brake set, try to turn
the ignition to LOCK in each shift lever position.
The ignition should turn to LOCK only when the
shift lever is in PARK (P).
The key should come out only in LOCK.
Contact your GM Goodwrench
®dealer if service is
required.
Parking Brake and Automatic
Transmission Park (P) Mechanism Check
{CAUTION:
When you are doing this check, your vehicle
could begin to move. You or others could be
injured and property could be damaged.
Make sure there is room in front of your
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 transmission in
NEUTRAL (N), slowly remove foot pressure from
the regular brake pedal. Do this until the vehicle is
held by the parking brake only.
To check the PARK (P) mechanism’s holding ability:
With the engine running, shift to PARK (P).
Then release the parking brake followed by the
regular brake.
Contact your GM Goodwrench
®dealer if service is
required.
Underbody Flushing Service
At least every spring, use plain water to ush any
corrosive materials from the underbody. Take care to
clean thoroughly any areas where mud and other debris
can collect.
6-13

Page 569 of 580

Cargo Lamp...................................................3-19
Center Console Storage Area...........................2-75
Center High-Mounted Stoplamp (CHMSL)
and Cargo Lamp.........................................5-68
Center Passenger Position, Safety Belts.............1-23
Chains, Tire...................................................5-89
Check
Engine Light...............................................3-44
Checking Things Under the Hood......................5-12
Chemical Paint Spotting.................................5-120
Child Restraints
Child Restraint Systems...............................1-35
Infants and Young Children...........................1-32
Lower Anchorages and Top Tethers for
Children (LATCH System)..........................1-45
Older Children.............................................1-30
Securing a Child Restraint Designed for
the LATCH System...................................1-47
Securing a Child Restraint in a Rear
Outside Seat Position...............................1-47
Securing a Child Restraint in the Center
Front Seat Position...................................1-51
Securing a Child Restraint in the Center
Rear Seat Position...................................1-49
Securing a Child Restraint in the Right
Front Seat Position (Crew Cab)..................1-52
Securing a Child Restraint in the
Right Front Seat Position (Regular
and Extended Cab)..........................1-54, 1-59Child Restraints (cont.)
Top Strap...................................................1-40
Top Strap Anchor Location............................1-42
Where to Put the Restraint...........................1-38
Chime Level Adjustment.................................3-127
Cigarette Lighter.............................................3-20
Cleaning
Aluminum or Chrome-Plated Wheels.............5-118
Exterior Lamps/Lenses................................5-117
Fabric/Carpet............................................5-114
Finish Care...............................................5-117
Inside of Your Vehicle.................................5-113
Instrument Panel, Vinyl, and Other
Plastic Surfaces.....................................5-115
Leather....................................................5-115
Tires........................................................5-119
Underbody Maintenance.............................5-120
Washing Your Vehicle.................................5-116
Weatherstrips............................................5-116
Windshield and Wiper Blades......................5-118
Climate Control System...................................3-20
Dual ..........................................................3-22
Dual Automatic............................................3-24
Outlet Adjustment........................................3-30
Clutch, Hydraulic.............................................5-34
Coinholder(s)..................................................2-75
Comfort Guides, Rear Safety Belt.....................1-27
Content Theft-Deterrent....................................2-19
Control of a Vehicle.......................................... 4-5
3

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Dual Automatic Climate Control System.............3-24
Dual Climate Control System............................3-22
Dual Tire Operation.........................................5-81
DVD
Rear Seat Entertainment System..................3-112
E
Electrical System
Add-On Equipment.....................................5-123
Center Instrument Panel Fuse Block.............5-126
Fuses and Circuit Breakers.........................5-123
Instrument Panel Fuse Block.......................5-124
Power Windows and Other Power Options....5-123
Underhood Fuse Block...............................5-127
Windshield Wiper Fuses.............................5-123
Engine
Air Cleaner/Filter.........................................5-25
Battery.......................................................5-51
Check and Service Engine Soon Light............3-44
Coolant......................................................5-35
Coolant Heater............................................2-25
Coolant Temperature Gage...........................3-42
Engine Compartment Overview......................5-14
Exhaust.....................................................2-56
Fan Noise..................................................5-45
Oil .............................................................5-20
Oil Life System...........................................5-23Engine (cont.)
Overheated Protection Operating Mode...........5-40
Overheating................................................5-38
Starting......................................................2-23
Entry Lighting.................................................3-18
Event Data Recorders (EDR)............................. 7-9
Exit Lighting...................................................3-18
Extender, Safety Belt.......................................1-29
F
Filter
Engine Air Cleaner......................................5-25
Finish Damage.............................................5-120
Fixed Mast Antenna.......................................3-127
Flash-to-Pass................................................... 3-9
Flat Tire........................................................5-90
Flat Tire, Changing.........................................5-91
Flat Tire, Storing...........................................5-108
Fluid
Automatic Transmission........................5-27, 5-30
Manual Transmission....................................5-33
Power Steering...........................................5-46
Windshield Washer......................................5-47
Fog Lamps ....................................................3-16
Four-Wheel Drive....................................2-37, 5-59
Four-Wheel-Drive Light....................................3-48
Front Axle......................................................5-60
5

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Mirrors
Automatic Dimming Rearview with Compass
and Temperature Display...........................2-60
Automatic Dimming Rearview with OnStar
®,
Compass and Temperature Display.............2-58
Manual Rearview Mirror................................2-58
Outside Automatic Dimming Mirror.................2-67
Outside Camper-Type Mirrors........................2-64
Outside Convex Mirror.................................2-68
Outside Curb View Assist Mirrors...................2-67
Outside Heated Mirrors................................2-68
Outside Manual Mirrors................................2-63
Outside Power Camper-Type.........................2-66
Outside Power Foldaway Mirrors....................2-66
Outside Power Mirrors..................................2-65
Outside West Coast-Type Mirrors...................2-65
MyGMLink.com................................................ 7-3
N
New Vehicle Break-In......................................2-21
Noise Control System, Tampering......................5-61
Normal Maintenance Replacement Parts............6-17
O
Odometer......................................................3-33
Odometer, Trip...............................................3-33
Off-Road Driving.............................................4-20
Off-Road Recovery..........................................4-17Oil
Engine.......................................................5-20
Pressure Gage............................................3-46
Oil, Engine Oil Life System..............................5-23
Older Children, Restraints................................1-30
Online Owner Center........................................ 7-3
OnStar
®System, see OnStar®Manual...............2-68
Other Warning Devices...................................... 3-6
Outlet Adjustment............................................3-30
Outside
Automatic Dimming Mirror.............................2-67
Camper-Type Mirrors....................................2-64
Convex Mirror.............................................2-68
Curb View Assist Mirrors..............................2-67
Heated Mirrors............................................2-68
Manual Mirrors............................................2-63
Power Foldaway Mirrors...............................2-66
Power Mirrors.............................................2-65
West Coast-Type Mirrors..............................2-65
Outside Power Camper-Type Mirror...................2-66
Overdrive Disable...........................................3-48
Overheated Engine Protection Operating Mode.....5-40
Owner Checks and Services.............................6-11
Owners, Canadian............................................... ii
PPark (P)
Shifting Into................................................2-52
Shifting Out of............................................2-54
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Recreational Vehicle Towing.............................4-63
Remote Keyless Entry System............................ 2-5
Remote Keyless Entry System, Operation............ 2-6
Removing the Flat Tire and Installing the
Spare Tire..................................................5-96
Removing the Spare Tire and Tools...................5-92
Replacement Bulbs.........................................5-71
Reporting Safety Defects
Canadian Government..................................7-11
General Motors...........................................7-11
United States Government............................7-10
Restraint System Check
Checking the Restraint Systems....................1-79
Replacing Restraint System Parts
After a Crash..........................................1-80
Retained Accessory Power (RAP)......................2-23
Right Front Passenger Position, Safety Belts......1-23
Roadside
Assistance Program....................................... 7-6
Rocking Your Vehicle to Get it Out....................4-48
Running the Engine While Parked.....................2-56
S
Safety Belt
Reminder Light............................................3-33
Safety Belts
Care of ....................................................5-116
Center Passenger Position............................1-23Safety Belts (cont.)
Driver Position............................................1-15
How to Wear Safety Belts Properly................1-15
Questions and Answers About
Safety Belts.............................................1-14
Rear Safety Belt Comfort Guides...................1-27
Rear Seat Passengers.................................1-24
Right Front Passenger Position......................1-23
Safety Belt Extender....................................1-29
Safety Belt Use During Pregnancy.................1-22
Safety Belts Are for Everyone.......................1-10
Safety Warnings and Symbols.............................. iii
Scheduled Maintenance..................................... 6-4
Seatback Latches............................................. 1-8
Seats
Head Restraints............................................ 1-7
Heated Seats............................................... 1-5
Manual........................................................ 1-3
Memory .....................................................2-79
Power Lumbar .............................................. 1-4
Power Seats................................................. 1-4
Rear Seat Operation...............................1-8, 1-9
Reclining Seatbacks...................................... 1-6
Seatback Latches.......................................... 1-8
Secondary Latch System................................5-105
Securing a Child Restraint
Center Front Seat Position............................1-51
Center Rear Seat Position............................1-49
Designed for the LATCH System...................1-47
11

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