2007 GMC CANYON clutch

Q:Are there some things I should not do
when driving down a hill?
A:Yes! These are important because if you
ignore them you could lose control and
have a serious accident.
When driving downhill, avoid turns that take
you across the incline of the hill. A hill that
is not too steep to drive down may be
too steep to drive across. You could roll over
if you do not drive straight down.
Never go downhill with the transmission in
NEUTRAL (N), or with the clutch pedal pressed
down with a manual transmission. This is called
“free-wheeling.” The brakes will have to do all
the work and could overheat and fade.
Q:Am I likely to stall when going downhill?
A:It is much more likely to happen going uphill. But
if it happens going downhill, here is what to do.
1. Stop your vehicle by applying the regular
brakes. Apply the parking brake.
2. Shift to PARK (P), or to NEUTRAL with the
manual transmission, and, while still braking,
restart the engine.3. Shift back to a low gear, release the parking
brake, and drive straight down.
4. If the engine will not start, get out and
get help.
Driving Across an Incline
Sooner or later, an off-road trail will probably go
across the incline of a hill. If this happens,
you have to decide whether to try to drive across
the incline. Here are some things to consider:
A hill that can be driven straight up or
down may be too steep to drive across. When
you go straight up or down a hill, the length
of the wheel base — the distance from
the front wheels to the rear wheels — reduces
the likelihood the vehicle will tumble end
over end. But when you drive across
an incline, the much more narrow track
width — the distance between the left and
right wheels — may not prevent the vehicle
from tilting and rolling over. Also, driving
across an incline puts more weight on
the downhill wheels. This could cause a
downhill slide or a rollover.
265

Service........................................................ 316
Accessories and Modications................... 316
California Proposition 65 Warning.............. 317
Doing Your Own Service Work.................. 317
Adding Equipment to the Outside of
Your Vehicle.......................................... 318
Fuel............................................................. 318
Gasoline Octane........................................ 318
Gasoline Specications.............................. 318
California Fuel........................................... 318
Additives................................................... 319
Fuels in Foreign Countries........................ 320
Filling the Tank......................................... 320
Filling a Portable Fuel Container............... 322
Checking Things Under the Hood.............. 323
Hood Release........................................... 323
Engine Compartment Overview.................. 324
Engine Oil................................................. 325Engine Oil Life System.............................. 328
Engine Air Cleaner/Filter............................ 330
Automatic Transmission Fluid.................... 331
Manual Transmission Fluid........................ 334
Hydraulic Clutch........................................ 336
Engine Coolant.......................................... 337
Radiator Pressure Cap.............................. 340
Engine Overheating................................... 340
Cooling System......................................... 342
Engine Fan Noise..................................... 347
Power Steering Fluid ................................. 348
Windshield Washer Fluid........................... 349
Brakes...................................................... 350
Battery...................................................... 353
Jump Starting............................................ 354
Rear Axle.................................................... 359
Four-Wheel Drive........................................ 359
Front Axle................................................... 360
Section 5 Service and Appearance Care
313

A. Windshield Washer Fluid. See “Adding Washer
Fluid” underWindshield Washer Fluid on
page 349.
B. Engine Coolant Recovery Tank. SeeEngine
Coolant on page 337.
C. Engine Air Cleaner/Filter. SeeEngine Air
Cleaner/Filter on page 330.
D. Power Steering Fluid Reservoir (low in engine
compartment). SeePower Steering Fluid
on page 348.
E. Automatic Transmission Fluid Dipstick (If
Equipped). See “Checking the Fluid Level”
underAutomatic Transmission Fluid on
page 331.
F. Engine Oil Fill Cap. See “When to Add Engine
Oil” underEngine Oil on page 325.
G. Radiator Pressure Cap. SeeCooling System
on page 342.
H. Remote Negative (−) Terminal (GND). See
Jump Starting on page 354.
I. Engine Oil Dipstick. See “Checking Engine Oil”
underEngine Oil on page 325.
J. Remote Positive (+) Terminal. SeeJump
Starting on page 354.K. Brake Fluid Reservoir. See “Brake Fluid” under
Brakes on page 350.
L. Engine Compartment Fuse Block. SeeEngine
Compartment Fuse Block on page 426.
M. Battery. SeeBattery on page 353.
N. Hydraulic Clutch Fluid Reservoir (If Equipped).
SeeHydraulic Clutch on page 336.
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 324
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.
325

Hydraulic Clutch
The hydraulic clutch linkage in your vehicle is
self-adjusting. The clutch master cylinder reservoir
is lled with hydraulic clutch uid.
The hydraulic clutch
uid reservoir cap has
this symbol on it.
SeeEngine
Compartment Overview
on page 324for
reservoir location.
It is not necessary to regularly check clutch uid
unless you suspect there is a leak in the system.
Adding uid will not correct a leak.
A uid loss in this system could indicate a
problem. Have the system inspected and repaired.
When to Check and What to Use
Refer to the Maintenance Schedule to determine
how often you should check the uid level in
your clutch master cylinder reservoir and for the
proper uid. SeeRecommended Fluids and
Lubricants on page 447.
336

6. Start the engine and let it run until you can
feel the upper radiator hose getting hot.
Watch out for the engine cooling fan.
7. By this time, the coolant level inside the
radiator ller neck might be lower. If the level is
lower, add more of the proper DEX-COOL
®
coolant mixture through the ller neck until the
level reaches the base of the ller neck.
8. Then replace the pressure cap.
At any time during this procedure if coolant begins
to ow out of the ller neck, reinstall the pressure
cap. Be sure to secure it tightly.
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.
347

Fuses Usage
RT HDLP Passenger’s Side Headlamp
LT HDLP Driver’s Side Headlamp
AUX PWR 2 Accessory Power 2
FOG/LAMP Fog Lamps (If Equipped)
A/C CMPRSR Air Conditioning Compressor
WSW Wiper/Washer Switch
RVC Regulated Voltage Control
PWR/WNDW Power Windows (If Equipped)
FUEL/PUMP Fuel Pump
STRTR Starter Solenoid Relay
WPR Wiper
ABS 2Anti-lock Brake System 2
(ABS Pump)
DR/LCK Power Door Locks (If Equipped)
ETC Electronic Throttle Control (ETC)
02 SNSROxygen Sensors, Air Injection
Reactor (AIR) Relay
CRUISECruise Control Switch, Inside
Rearview Mirror, Transfer Case
Control Module, Brake Switch,
Clutch Disable
HTD/SEAT Heated Seat (If Equipped)
AIRBAGSupplemental Inatable Restraint
System, Sensing and Diagnostic
ModuleFuses Usage
ABSAnti-lock Brake System (ABS),
ABS module, Four-Wheel Drive,
Gravity Sensor
BCK/UP Back-up Lights
FRT/AXLE Front Axle Actuator
TRN/HAZRD
REARRear Turn/Hazard Lights
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 1Anti-lock Brake System 1
(ABS Logic)
FRT PRK
LAMPFront Park/Turn Lamps, Driver
and Passenger’s Side Power
Window Switches Lighting
REAR PRK
LAMPRear Parking Lamp 1,
Passenger’s Side Taillamp,
License Plate Lamps
428

Fuses Usage
REAR PRK
LAMP2Driver’s 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
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
Relays Usage
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 Compressor
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
429

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 130.
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 GM Goodwrench
®
dealer for service.
On manual transmission vehicles, put the
shift lever in NEUTRAL (N), 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 GM Goodwrench
®dealer for
service.
444