transmission CHEVROLET AVALANCHE 2004 1.G Repair Manual

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
(41 500)50,000
(83 000)75,000
(125 000)100,000
(166 000)125,000
(207 500)150,000
(240 000)
Inspect fuel system for damage
or leaks.••••••
Inspect exhaust system for loose or
damaged components.••••••
Vehicles without a lter restriction
indicator: Replace engine air
cleaner lter. SeeEngine Air
Cleaner/Filter on page 5-21.
An Emission Control Service.••••••
Change automatic transmission
uid and lter (severe service).
See footnote (h).•••
Change automatic transmission
uid and lter (normal service).•
Change transfer case uid.
See footnote (g).•••
6-6

Maintenance Footnotes
†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.
(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 other brake parts, including 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 blade inserts 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 air bag
coverings, and have them repaired or replaced. (The air
bag system does not need regular maintenance.)
6-8

(f)Lubricate all key lock cylinders, hood latch assembly,
secondary latch, pivots, spring anchor, release pawl,
midgate hinges, side storage box door hinges, tailgate
hinges, tailgate linkage, outer 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)Add uid as needed. A uid loss could indicate a
problem; repair as needed. Check vent hose at transfer
case for kinks and proper installation.
(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. See Engine
Coolant on page 5-26for 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.
6-9

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 2-42if
necessary.
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 starter
should work only in PARK (P) or NEUTRAL (N).
If the starter works 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 2-42if necessary.
Be ready to apply the regular brake immediately
if the vehicle begins to move.
3. With the engine off, turn the key to the
RUN position, 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.
6-11

Ignition Transmission Lock Check
While parked, and with the parking brake set, try to turn
the ignition key to LOCK in each shift lever position.
The key 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.
6-12

Recommended Fluids and
Lubricants
Fluids and lubricants identied below by name, part
number or specication may be obtained from your
dealer.
Usage Fluid/Lubricant
Engine OilEngine oil which meets GM
Standard GM6094M and displays
the American Petroleum Institute
Certied for Gasoline Engines
starburst symbol. GM Goodwrench
oil meets all the requirements for
your vehicle. To determine the
proper viscosity for your vehicle’s
engine, seeEngine Oil on
page 5-16.
Engine Coolant50/50 mixture of clean, drinkable
water and use only
DEX-COOL
®Coolant. SeeEngine
Coolant on page 5-26.
Hydraulic Brake
SystemDelco Supreme 11 Brake Fluid or
equivalent DOT-3 brake uid.
Usage Fluid/Lubricant
Windshield
Washer SolventGM Optikleen
®Washer Solvent.
Power Steering
SystemGM Power Steering Fluid
(GM Part No. U.S. 89021184, in
Canada 89021186).
Automatic
TransmissionDEXRON
®-III Automatic
Transmission Fluid.
Key Lock
CylindersMulti-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241, in
Canada 10953474).
Chassis
LubricationChassis Lubricant
(GM Part No. U.S. 12377985, in
Canada 88901242) or lubricant
meeting requirements of NLGI #2,
Category LB or GC-LB.
Front AxleSAE 80W-90 Axle Lubricant
(GM Part No. U.S. 1052271,
in Canada 10950849).
Rear AxleSAE 75W-90 Synthetic Axle
Lubricant (GM Part No. U.S.
12378261, in Canada 10953455)
meeting GM Specication 9986115.
6-13

Reporting Safety Defects to
General Motors
In addition to notifying NHTSA (or Transport Canada) in
a situation like this, we certainly hope you’ll notify us.
Please call us at 1-800-222-1020, or write:
Chevrolet Motor Division
Chevrolet Customer Assistance Center
P.O. Box 33170
Detroit, MI 48232-5170
In Canada, please call us at 1-800-263-3777 (English)
or 1-800-263-7854 (French). Or, write:
General Motors of Canada Limited
Customer Communication Centre, 163-005
1908 Colonel Sam Drive
Oshawa, Ontario L1H 8P7
Service Publications Ordering
Information
Service Manuals
Service Manuals have the diagnosis and repair
information on engines, transmission, axle, suspension,
brakes, electrical, steering, body, etc.
RETAIL SELL PRICE: $120.00
Transmission, Transaxle, Transfer
Case Unit Repair Manual
This manual provides information on unit repair service
procedures, adjustments, and specications for GM
transmissions, transaxles, and transfer cases.
RETAIL SELL PRICE: $50.00
7-13

Audio System(s) (cont.)
Setting the Time..........................................3-73
Theft-Deterrent Feature...............................3-114
Understanding Radio Reception...................3-115
XM™ Satellite Radio Antenna System...........3-117
Automatic Climate Control System.....................3-22
Automatic Dimming Mirror Operation..........2-50, 2-53
Automatic Headlamp System............................3-16
Automatic Transfer Case..................................2-38
Automatic Transmission
Fluid..........................................................5-23
Operation...................................................2-34
Auxiliary Battery..............................................4-82
Auxiliary Roof Mounted Lamp Switch.................3-19
B
Backing Up....................................................4-76
Battery..........................................................5-47
BATTERY NOT CHARGING.............................3-66
Battery Replacement......................................... 2-6
Battery Run-Down Protection............................3-21
Before Leaving on a Long Trip.........................4-41
Before You Drive...........................................3-100
Before You Go Off-Roading..............................4-20Brake
Parking......................................................2-42
System Warning Light..................................3-42
Brake Adjustment............................................5-46
Brake Fluid....................................................5-43
Brake Pedal, Throttle.......................................2-33
Brake Pedal Travel.........................................5-46
Brake Wear...................................................5-46
Brakes..........................................................5-43
Braking........................................................... 4-6
Braking in Emergencies..................................... 4-9
Break-In, New Vehicle.....................................2-30
BUCKLE PASSENGER....................................3-69
BUCKLE SEATBELT.......................................3-69
Bulb Replacement...........................................5-58
Center High-Mounted Stoplamp (CHMSL)........5-65
Daytime Running Lamps...............................5-65
Front Turn Signal, Sidemarker and Daytime
Running Lamps........................................5-63
Front Turn Signal, Sidemarker and Parking
Lamps....................................................5-62
Halogen Bulbs............................................5-58
Headlamps.................................................5-58
Replacement Bulbs......................................5-66
Taillamps....................................................5-65
Buying New Tires...........................................5-83
2

E
Easy Exit Seat...............................................2-92
Electrical System...........................................5-119
Fuses and Circuit Breakers.........................5-120
Power Windows and Other Power Options....5-120
Windshield Wiper Fuses.............................5-120
Emissions Inspection and Maintenance
Programs...................................................3-49
Engine
Air Cleaner/Filter.........................................5-21
Battery.......................................................5-47
Check and Service Engine Soon Light............3-47
Coolant......................................................5-26
Coolant Heater............................................2-33
Coolant Temperature Gage...........................3-45
Drive Belt Routing.......................................6-16
Engine Compartment Overview......................5-12
Exhaust.....................................................2-47
Fan Noise..................................................5-40
Oil .............................................................5-16
Overheating................................................5-29
Starting......................................................2-32
ENGINE COOLANT HOT.................................3-66
Engine Oil Additives........................................5-19
ENGINE OVERHEATED..................................3-66
Entry Lighting and Exit Lighting.........................3-20Environmental Concerns..................................4-21
Erasing HomeLink
®Buttons..............................2-64
Event Data Recorders (EDR)............................7-10
Extender, Safety Belt.......................................1-29
Exterior Lamps...............................................3-14
F
Filter
Engine Air Cleaner......................................5-21
Finding a Program Type (PTY) Station
(RDS and XM™).................................3-77, 3-89
Finding a Station....................................3-75, 3-87
Finish Care..................................................5-115
Finish Damage.............................................5-117
Fixed Mast Antenna.......................................3-116
Flash-to-Pass................................................... 3-9
Flat Tire........................................................5-89
Flat Tire, Changing.........................................5-90
Fluid
Automatic Transmission................................5-23
Power Steering...........................................5-41
Windshield Washer......................................5-42
FM Stereo....................................................3-115
Fog Lamps....................................................3-18
Following Distance..........................................4-76
6

Four-Wheel Drive....................................2-38, 5-56
Front Armrest Storage Area..............................2-65
Front Axle......................................................5-57
Front Axle Locking Feature...............................2-38
Frontal Air Bags.............................................1-57
Fuel............................................................... 5-5
Additives...................................................... 5-6
California Fuel.............................................. 5-6
Filling a Portable Fuel Container..................... 5-9
Filling Your Tank........................................... 5-7
Fuels in Foreign Countries.............................. 5-7
Gage.........................................................3-52
Gasoline Octane........................................... 5-5
Gasoline Specications.................................. 5-5
Low Warning Light.......................................3-52
Fuel Information Button....................................3-56
FUEL LEVEL LOW.........................................3-67
Fuses
Fuses and Circuit Breakers.........................5-120
Windshield Wiper.......................................5-120G
Gage
Engine Coolant Temperature.........................3-45
Fuel..........................................................3-52
Oil Pressure...............................................3-50
Speedometer..............................................3-35
Tachometer.................................................3-35
Transmission Temperature.............................3-45
Voltmeter Gage...........................................3-41
Garage Door Opener.......................................2-61
Gasoline
Octane........................................................ 5-5
Specications............................................... 5-5
Gate Operator and Canadian Programming........2-64
Getting Familiar with Off-Road Driving................4-22
Glove Box.....................................................2-65
GM Mobility Program for Persons with
Disabilities.................................................... 7-6
7