transmission GMC CANYON 2008 Workshop Manual

A. Windshield Washer Fluid. See “Adding Washer
Fluid” underWindshield Washer Fluid on page 5-37.
B. Engine Coolant Recovery Tank.
SeeEngine Coolant on page 5-26.
C. Engine Air Cleaner/Filter. SeeEngine
Air Cleaner/Filter on page 5-19.
D. Power Steering Fluid Reservoir (low in engine
compartment). SeePower Steering Fluid
on page 5-36.
E. Automatic Transmission Fluid Dipstick (If Equipped).
See “Checking the Fluid Level” underAutomatic
Transmission Fluid on page 5-21.
F. Engine Oil Fill Cap. See “When to Add Engine Oil”
underEngine Oil on page 5-15.
G. Radiator Pressure Cap. SeeCooling System
on page 5-31.H. Remote Negative (−) Terminal (GND).
SeeJump Starting on page 5-42.
I. Engine Oil Dipstick. See “Checking Engine Oil”
underEngine Oil on page 5-15.
J. Remote Positive (+) Terminal. SeeJump Starting
on page 5-42.
K. Brake Fluid Reservoir. See “Brake Fluid” under
Brakes on page 5-38.
L. Engine Compartment Fuse Block. SeeEngine
Compartment Fuse Block on page 5-111.
M. Battery. SeeBattery on page 5-41.
N. Hydraulic Clutch Fluid Reservoir (If Equipped).
SeeHydraulic Clutch on page 5-24.
5-13

A. Engine Air Cleaner/Filter. SeeEngine
Air Cleaner/Filter on page 5-19.
B. Air Filter Restriction Indicator (If Equipped).
SeeEngine Air Cleaner/Filter on page 5-19.
C. Windshield Washer Fluid Reservoir. See “Adding
Washer Fluid” underWindshield Washer Fluid
on page 5-37.
D. Engine Coolant Recovery Tank. SeeEngine Coolant
on page 5-26.
E. Automatic Transmission Fluid Dipstick (If Equipped).
See “Checking the Fluid Level” underAutomatic
Transmission Fluid on page 5-21.
F. Engine Oil Dipstick. See “Checking Engine Oil”
underEngine Oil on page 5-15.
G. Engine Oil Fill Cap. See “When to Add Engine Oil”
underEngine Oil on page 5-15.
H. Brake Fluid Reservoir. See “Brake Fluid” under
Brakes on page 5-38.
I. Battery. SeeBattery on page 5-41.
J. Power Steering Fluid Reservoir. SeePower Steering
Fluid on page 5-36.
K. Engine Compartment Fuse Block. SeeEngine
Compartment Fuse Block on page 5-111.
L. Radiator Pressure Cap. SeeCooling System
on page 5-31.Engine Oil
Checking Engine Oil
It is a good idea to check the engine oil every time you
get fuel. In order to get an accurate reading, the oil
must be warm and the vehicle must be on level ground.
The engine oil dipstick handle is a yellow loop.
SeeEngine Compartment Overview on page 5-12
for the location of the engine oil dipstick.
1. Turn off the engine and give the oil several minutes
to drain back into the oil pan. If you do not do this,
the oil dipstick might not show the actual level.
2. Pull out the dipstick and clean it with a paper towel
or cloth, then push it back in all the way. Remove it
again, keeping the tip down, and check the level.
5-15

Automatic Transmission Fluid
When to Check and Change
Automatic Transmission Fluid
A good time to check your automatic transmission uid
level is when the engine oil is changed.
Change the uid and lter at the intervals listed in
Additional Required Services on page 6-6, and be sure
to use the transmission uid listed inRecommended
Fluids and Lubricants on page 6-12.
How to Check Automatic
Transmission Fluid
Because this operation can be a little difficult, you may
choose to have this done at the dealer/retailer service
department.
If you do it yourself, be sure to follow all the instructions
here, or you could get a false reading on the dipstick.
Notice:Too much or too little uid can damage
your transmission. Too much can mean that some
of the uid could come out and fall on hot engine
parts or exhaust system parts, starting a re.
Too little uid could cause the transmission to
overheat. Be sure to get an accurate reading if
you check your transmission uid.Wait at least 30 minutes before checking the
transmission uid level if you have been driving:
When outside temperatures are above 90°F (32°C).
At high speed for quite a while.
In heavy traffic — especially in hot weather.
While pulling a trailer.
To get the right reading, the uid should be at
normal operating temperature, which is 180°F to 200°F
(82°C to 93°C).
Get the vehicle warmed up by driving about 15 miles
(24 km) when outside temperatures are above
50°F (10°C). If it is colder than 50°F (10°C), drive
the vehicle in THIRD (3) until the engine temperature
gage moves and then remains steady for 10 minutes.
A cold uid check can be made after the vehicle
has been sitting for eight hours or more with the
engine off, but this is used only as a reference.
Let the engine run at idle for ve minutes if outside
temperatures are 50°F (10°C) or more. If it is colder than
50°F (10°C), you may have to idle the engine longer.
Should the uid level be low during this cold check,
you must check the uid hot before adding uid.
Checking the uid hot will give you a more accurate
reading of the uid level.
5-21

Checking the Fluid Level
Prepare your vehicle as follows:
1. Park your vehicle on a level place.
Keep the engine running.
2. With the parking brake applied, place the
shift lever in PARK (P).
3. With your foot on the brake pedal, move the
shift lever through each gear range, pausing
for about three seconds in each range.
Then, position the shift lever in PARK (P).
4. Let the engine run at idle for three minutes or more.
Then, without shutting off the engine, follow these steps:
1. Flip the handle up and then pull out the dipstick
and wipe it with a clean rag or paper towel.
The automatic transmission
dipstick handle with this
symbol on it is located in
the engine compartment
on the passenger’s side of
the vehicle.
SeeEngine Compartment Overview on page 5-12
for more information on location.
2. Push it back in all the way, wait three seconds
and then pull it back out again.3. Check both sides of the dipstick, and read the lower
level. The uid level must be in the COLD area,
below the cross-hatched area, for a cold check
or in the HOT or cross-hatched area for a hot check.
Be sure to keep the dipstick pointed down to get
an accurate reading.
4. If the uid level is in the acceptable range, push
the dipstick back in all the way; then ip the
handle down to lock the dipstick in place.
5-22

How to Add Automatic
Transmission Fluid
Refer to the Maintenance Schedule to determine what
kind of transmission uid to use. SeeRecommended
Fluids and Lubricants on page 6-12.
Add uid only after checking the transmission uid
while it is hot. A cold check is used only as a reference.
If the uid level is low, add only enough of the proper
uid to bring the level up to the HOT area for a hot
check. It does not take much uid, generally less than
one pint (0.5 L). Do not overll.
Notice:Use of the incorrect automatic transmission
uid may damage your vehicle, and the damages
may not be covered by your warranty. Always
use the automatic transmission uid listed in
Recommended Fluids and Lubricants on page 6-12.
After adding uid, recheck the uid level as
described under “How to Check Automatic
Transmission Fluid,” earlier in this section.
When the correct uid level is obtained, push
the dipstick back in all the way; then ip the
handle down to lock the dipstick in place.
Manual Transmission Fluid
When to Check
A good time to have it checked is when the engine oil is
changed. However, the uid in your manual transmission
does not require changing.
How to Check
Because this operation can be a little difficult, you may
choose to have this done at your GM dealer/retailer
service department.
If you do it yourself, be sure to follow all the instructions
here, or you could get a false reading.
Notice:Too much or too little uid can damage
your transmission. Too little uid could cause
the transmission to overheat. Be sure to get an
accurate reading if you check your transmission
uid.
Check the uid level only when your engine is off, the
vehicle is parked on a level place and the transmission
is cool enough for you to rest your ngers on the
transmission case.
5-23

Engine Fan Noise
This vehicle has a clutched engine cooling fan.
When the clutch is engaged, the fan spins faster
to provide more air to cool the engine. In most
everyday driving conditions, the clutch is not engaged.
This improves fuel economy and reduces fan noise.
Under heavy vehicle loading, trailer towing and/or high
outside temperatures, the fan speed increases when
the clutch engages. So you may hear an increase in
fan noise. This is normal and should not be mistaken
as the transmission slipping or making extra shifts.
It is merely the cooling system functioning properly.
The fan will slow down when additional cooling is
not required and the clutch disengages.
You may also hear this fan noise when you start the
engine. It will go away as the fan clutch disengages.
Power Steering Fluid
The power steering uid
reservoir is located near
the front of the engine
compartment, behind
the radiator. SeeEngine
Compartment Overview
on page 5-12for reservoir
location.
When to Check Power Steering Fluid
It is not necessary to regularly check power steering uid
unless you suspect there is a leak in the system or
you hear an unusual noise. A uid loss in this system
could indicate a problem. Have the system inspected
and repaired.
How to Check Power Steering Fluid
1. Turn the key off and let the engine compartment
cool down.
2. Wipe the cap and the top of the reservoir clean.
5-36

Notice:Ignoring these steps could result in costly
damage to your vehicle that would not be covered
by your warranty.
Trying to start your vehicle by pushing or pulling it
will not work, and it could damage your vehicle.
1. Check the other vehicle. It must have a 12-volt
battery with a negative ground system.
Notice:If the other vehicle’s system is not a 12-volt
system with a negative ground, both vehicles can
be damaged. Only use vehicles with 12-volt systems
with negative grounds to jump start your vehicle.
2. Get the vehicles close enough so the jumper cables
can reach, but be sure the vehicles are not touching
each other. If they are, it could cause a ground
connection you do not want. You would not be able
to start your vehicle, and the bad grounding could
damage the electrical systems.To avoid the possibility of the vehicles rolling, set the
parking brake rmly on both vehicles involved in the
jump start procedure. Put an automatic transmission
in PARK (P) or a manual transmission in NEUTRAL
before setting the parking brake. If you have a
four-wheel-drive vehicle, be sure the transfer case
is not in NEUTRAL.
Notice:If you leave your radio or other accessories
on during the jump starting procedure, they could
be damaged. The repairs would not be covered
by your warranty. Always turn off your radio and
other accessories when jump starting your vehicle.
3. Turn off the ignition on both vehicles. Unplug
unnecessary accessories plugged into the cigarette
lighter or the accessory power outlets. Turn off
the radio and all lamps that are not needed.
This will avoid sparks and help save both batteries.
And it could save the radio!
5-43

Tire Size
The following illustration shows an example of a
typical passenger vehicle tire size.
(A) P-Metric Tire
:The United States version
of a metric tire sizing system. The letter P as the
rst character in the tire size means a passenger
vehicle tire engineered to standards set by
the U.S. Tire and Rim Association.
(B) Tire Width
:The three-digit number indicates
the tire section width in millimeters from sidewall
to sidewall.
(C) Aspect Ratio
:A two-digit number that
indicates the tire height-to-width measurements.
For example, if the tire size aspect ratio is 70,
as shown in item C of the illustration, it would
mean that the tire’s sidewall is 70 percent as
high as it is wide.(D) Construction Code
:A letter code is used
to indicate the type of ply construction in the tire.
The letter R means radial ply construction; the
letter D means diagonal or bias ply construction;
and the letter B means belted-bias ply construction.
(E) Rim Diameter
:Diameter of the wheel
in inches.
(F) Service Description
:These characters
represent the load range and speed rating of
the tire. The load index represents the load
carry capacity a tire is certied to carry. The
load index can range from 1 to 279. The speed
rating is the maximum speed a tire is certied
to carry a load. Speed ratings range from A to Z.
Tire Terminology and Denitions
Air Pressure:The amount of air inside the
tire pressing outward on each square inch of
the tire. Air pressure is expressed in pounds per
square inch (psi) or kilopascal (kPa).
Accessory Weight
:This means the combined
weight of optional accessories. Some examples of
optional accessories are, automatic transmission,
power steering, power brakes, power windows,
power seats, and air conditioning.
5-59

Fuses Usage
ERLSMass Air Flow (MAF) Sensor,
Can Purge Solenoid, Air Injection
Reactor (AIR) Relay
PCMI Powertrain Control Module (PCM)
TRANS Transmission Solenoid
IGNIgnition, Clutch Starter Switch,
Neutral Safety Back-Up Switch,
Ignition Coils 1-5, Air Conditioning
Relay
INJ Injectors
ABS 1Antilock Brake System 1
(ABS Logic)
FRT PRK
LAMPFront Park/Turn Lamps,
Driver and Passenger Side
Power Window Switches Lighting
REAR PRK
LAMPRear Parking Lamp 1, Passenger
Side Taillamp, License Plate LampsFuses Usage
REAR PRK
LAMP2Driver Side Rear Taillamp,
Passenger Side Airbag Indicator
Lighting, Instrument Panel Dimming
Power (2WD/4WD switch lighting)
CLSTR Cluster
TRN/HAZRD
FRTTurn/Hazard/Courtesy/Cargo
Lamps/Mirrors
TCCM Transfer Case Control Module
HORN Horn
TBC Truck Body Controller
IGN TRNSD Ignition Transducers
RDO Radio
ONSTAR OnStar
®
CNSTR VENT Fuel Canister Vent Solenoid
PCM B Powertrain Control Module (PCM) B
5-114

Relays Usage
DRL Daylight Running Lamps
BEAM SEL Beam Selection
IGN 3 HVACIgnition 3, Climate Control,
Climate Control Head Fuse,
Power Seat Fuse
RAPRetained Accessory Power
(Power Window Fuse,
Wiper/Washer Switch Fuse),
Sunroof Fuse
PRK/LAMPFront Parking Lamp Fuse,
Rear Parking Lamps
HDLP Headlamps
FOG/LAMP Fog Lamps (If Equipped)
FUEL/PUMP Fuel Pump, Fuel Pump Fuse
A/C CMPRSR Air Conditioning CompressorRelays Usage
RUN/CRNKRun/Crank, Airbag System Fuse,
Cruise Control Fuse, Ignition Fuse,
Back-Up Lamps, ABS Fuse,
Front Axle, PCM-1, Injectors Fuse,
Transmission Fuse, ERLS
PWR/TRNPowertrain, Electronic Throttle
Control Fuse, Oxygen Sensor Fuse
HORN Horn
WPR 2 Wiper 2 (High/Low)
WPR Wipers (On/Off)
STRTR Starter Relay (PCM Relay)
Miscellaneous Usage
WPR Diode — Wiper
A/C CLTCH Diode — Air Conditioning, Clutch
MEGA FUSE Mega Fuse
5-115