2009 CHEVROLET COLORADO clutch

Things not to do if the vehicle stalls, or is about to stall,
when going up a hill:
Never attempt to prevent a stall by shifting into
N (Neutral), or pressing the clutch pedal if the
vehicle has a manual transmission, to rev-up the
engine and regain forward momentum. This will not
work. The vehicle can roll backward very quickly
and could go out of control.
Never try to turn around if about to stall when going
up a hill. If the hill is steep enough to stall the vehicle,
it is steep enough to cause it to roll over. If you
cannot make it up the hill, back straight down the hill.
If, after stalling, you try to back down the hill and decide
you just cannot do it, set the parking brake, shift to
P (Park) or 1 (First) with a manual transmission, and turn
off the engine. Leave the vehicle and go get some help.Exit on the uphill side and stay clear of the path the
vehicle would take if it rolled downhill. Do not shift the
transfer case to Neutral when you leave the vehicle.
Leave it in some gear.
{CAUTION:
Shifting the transfer case to Neutral can cause
your vehicle to roll even if the transmission is in
P (Park). This is because the Neutral position on
the transfer case overrides the transmission. You
or someone else could be injured. If you are going
to leave your vehicle, set the parking brake and
shift the transmission to P (Park). But do not shift
the transfer case to Neutral.
4-20

Service............................................................5-3
Accessories and Modications..........................5-3
California Proposition 65 Warning.....................5-4
California Perchlorate Materials Requirements......5-4
Doing Your Own Service Work.........................5-4
Adding Equipment to the Outside of the
Vehicle......................................................5-5
Fuel................................................................5-5
Gasoline Octane............................................5-5
Gasoline Specications....................................5-6
California Fuel...............................................5-6
Additives.......................................................5-6
Fuels in Foreign Countries...............................5-7
Filling the Tank..............................................5-8
Filling a Portable Fuel Container.....................5-10
Checking Things Under the Hood....................5-10
Hood Release..............................................5-11
Engine Compartment Overview.......................5-12
Engine Oil...................................................5-15
Engine Oil Life System..................................5-18
Engine Air Cleaner/Filter................................5-20
Automatic Transmission Fluid.........................5-21
Manual Transmission Fluid.............................5-24
Hydraulic Clutch...........................................5-26
Cooling System............................................5-27Engine Coolant.............................................5-29
Engine Overheating.......................................5-34
Engine Fan Noise.........................................5-35
Power Steering Fluid.....................................5-36
Windshield Washer Fluid................................5-37
Brakes........................................................5-38
Battery........................................................5-41
Jump Starting...............................................5-42
Rear Axle.......................................................5-46
Four-Wheel Drive
............................................5-47
Front Axle......................................................5-48
Headlamp Aiming...........................................5-49
Bulb Replacement..........................................5-49
Halogen Bulbs..............................................5-49
Headlamps..................................................5-50
Front Turn Signal, Parking and Daytime
Running Lamps (DRL)................................5-51
Center High-Mounted Stoplamp (CHMSL).........5-51
Taillamps, Turn Signal, Stoplamps and
Back-up Lamps.........................................5-52
License Plate Lamp......................................5-53
Replacement Bulbs.......................................5-53
Windshield Wiper Blade Replacement..............5-54
Section 5 Service and Appearance Care
5-1

A. Windshield Washer Fluid. See “Adding Washer
Fluid” underWindshield Washer Fluid on page 5-37.
B. Engine Coolant Recovery Tank. SeeEngine
Coolant on page 5-29.
C. Engine Air Cleaner/Filter. SeeEngine Air
Cleaner/Filter on page 5-20.
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 5-27.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 5-26.
5-13

Hydraulic Clutch
The hydraulic clutch linkage in the 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 5-12for reservoir
location.
It is not necessary to regularly check clutch uid unless
a leak in the system is suspected. 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 to check the uid level in the clutch master cylinder
reservoir and for the proper uid. SeeRecommended
Fluids and Lubricants on page 6-12.
5-26

If No Steam is Coming from the Engine
Compartment
If an engine overheat warning is displayed but no
steam can be seen or heard, the problem may not be
too serious. Sometimes the engine can get a little too
hot when the vehicle:
Climbs a long hill on a hot day.
Stops after high-speed driving.
Idles for long periods in traffic.
Tows a trailer. See “Driving on Grades” under
Towing a Trailer on page 4-47.
If the overheat warning is displayed with no sign of
steam:
1. Turn the air conditioning off.
2. Turn the heater on to the highest temperature and
to the highest fan speed. Open the windows as
necessary.
3. In heavy traffic, let the engine idle in N (Neutral)
while stopped. If it is safe to do so, pull off the
road, shift to P (Park) or N (Neutral) and let
the engine idle.
If the temperature overheat gage is no longer in the
overheat zone or an overheat warning no longer
displays, the vehicle can be driven. Continue to drivethe vehicle slow for about 10 minutes. Keep a safe
vehicle distance from the car in front of you. If the
warning does not come back on, continue to drive
normally.
If the warning continues, pull over, stop, and park the
vehicle right away.
If there is no sign of steam, idle the engine for three
minutes while parked. If the warning is still displayed,
turn off the engine until it cools down.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.
5-35

The trailer brake relay is located on the bottom side of
the battery harness.
Fuses Usage
O2 SNSROxygen Sensors, Air Injection
Reactor (AIR) Relay
A/CAir Conditioning Control Head,
Power Seats
A/C CMPRSR Air Conditioning Compressor
Fuses Usage
ABSAntilock Brake System (ABS),
ABS Module, Four-Wheel Drive,
Gravity Sensor
ABS 1 ABS 1 (ABS Logic)
ABS 2 ABS 2 (ABS Pump)
AUX PWR 1 Accessory Power 1
AUX PWR 2 Accessory Power 2
BCK/UP Back-up Lights
BLWR Climate Control Fan
CLSTR Cluster
CNSTR VENT Fuel Canister Vent Solenoid
CRUISECruise Control Switch, Inside
Rearview Mirror, Transfer Case
Control Module, Brake Switch,
Clutch Disable
DR/LCK Power Door Locks (If Equipped)
DRL Daylight Running Lamps
ERLSMass Air Flow (MAF) Sensor,
Can Purge Solenoid, Air Injector
Reactor (AIR) Relay
5-113

Fuses Usage
ETC Electronic Throttle Control (ETC)
FOG/LAMP Fog Lamps (If Equipped)
FRT PRK
LAMPFront Park/Turn Lamps, Driver and
Passenger Side Power Window
Switches Lighting
FRT/AXLE Front Axle Actuator
FSCM Fuel System Control Module
BK UP LP Back Up Lamp
HORN Horn
HTD/SEAT Heated Seat (If Equipped)
IGNIgnition, Clutch Starter Switch,
Neutral Safety Back-Up Switch,
Ignition Coils 1-5, Air Conditioning
Relay
INJ Injectors
LT HDLP Driver Side Headlamp
PCM B Power Control Module (PCM) B
PCMI Power Control Module (PCM)
PWR/SEATPower Seat Circuit Breaker
(If Equipped)Fuses Usage
PWR/WNDW Power Windows (If Equipped)
RDO Radio
REAR PRK
LAMPRear Parking Lamp 1, Passenger
Side Taillamp, License Plate Lamps
REAR PRK
LAMP2Driver Side Rear Taillamp,
Passenger Side Airbag Indicator
Lighting, Instrument Panel Dimming
Power (2WD/4WD switch lighting)
RT HDLP Passenger Side Headlamp
RVC Regulated Voltage Control
S/ROOF Sunroof (If Equipped)
STOP Stop Lamps
STRTR Starter Solenoid Relay
TBC Truck Body Controller
TCM Transmission Control Module
TCCM Transfer Case Control Module
TRAILER
BRAKETrailer Brake
TRANS Transmission Solenoid
5-114

Fuses Usage
TRN/HAZRD
FRTTurn/Hazard/Courtesy/Cargo
Lamps/Mirrors
TRN/HAZRD
REARRear Turn/Hazard Lights
VSESVehicle Stability Enhancement
System
WPR Wiper
WSW Wiper/Washer Switch
Relays Usage
A/C CMPRSR Air Conditioning Compressor
BEAM SEL Beam Selection
DRL Daylight Running Lamps
FOG/LAMP Fog Lamps (If Equipped)
BACKUP LAMP Back Up Lamp
HDLP Headlamps
HORN Horn
IGN 3 HVACIgnition 3, Climate Control,
Climate Control Head Fuse,
Power Seat Fuse
PRK/LAMPFront Parking Lamp Fuse,
Rear Parking Lamps
Relays Usage
PWR/TRNPowertrain, Electronic Throttle
Control Fuse, Oxygen Sensor Fuse
RAPRetained Accessory Power
(Power Window Fuse,
Wiper/Washer Switch Fuse),
Sunroof Fuse
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
STRTR Starter Relay (PCM Relay)
VSESVehicle Stability Enhancement
System
WPR Wipers (On/Off)
WPR 2 Wiper 2 (High/Low)
Miscellaneous Usage
A/C CLTCH Diode — Air Conditioning, Clutch
MEGA FUSE Mega Fuse
WPR Diode — Wiper
5-115