2007 GMC CANYON radiator

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

How to Check and Add Fluid
The proper uid should be added if the level does
not reach the bottom of the diaphragm when it
is in place in the reservoir. See the instructions on
the reservoir cap.
Engine Coolant
The cooling system in your vehicle is lled with
DEX-COOL®engine coolant. This coolant is
designed to remain in your vehicle for ve years or
150,000 miles (240 000 km), whichever occurs
rst, if you add only DEX-COOL
®extended
life coolant.
The following explains your cooling system and
how to add coolant when it is low. If you have
a problem with engine overheating, seeEngine
Overheating on page 340.A 50/50 mixture of clean, drinkable water and
DEX-COOL
®coolant will:
Give freezing protection down to
−34°F (−37°C).
Give boiling protection up to 265°F (129°C).
Protect against rust and corrosion.
Help keep the proper engine temperature.
Let the warning lights and gages work as they
should.
Notice:Using coolant other than DEX-COOL
®
may cause premature engine, heater core,
or radiator corrosion. In addition, the engine
coolant may require changing sooner, at
the rst maintenance service after each
30,000 miles (50 000 km) or 24 months,
whichever occurs rst. Any repairs would not
be covered by your warranty. Always use
DEX-COOL
®(silicate-free) coolant in your
vehicle.
337

What to Use
Use a mixture of one-half clean, drinkable water
and one-half DEX-COOL®coolant which will
not damage aluminum parts. If you use this coolant
mixture, you do not need to add anything else.
{CAUTION:
Adding only plain water to your cooling
system can be dangerous. Plain water, or
some other liquid such as alcohol, can
boil before the proper coolant mixture will.
Your vehicle’s coolant warning system is
set for the proper coolant mixture. With
plain water or the wrong mixture, your
engine could get too hot but you would
not get the overheat warning. Your engine
could catch re and you or others could
be burned. Use a 50/50 mixture of clean,
drinkable water and the proper coolant.Notice:If you use an improper coolant
mixture, your engine could overheat and be
badly damaged. The repair cost would not be
covered by your warranty. Too much water
in the mixture can freeze and crack the engine,
radiator, heater core, and other parts.
Notice:If you use extra inhibitors and/or
additives in your vehicle’s cooling system, you
could damage your vehicle. Use only the
proper mixture of the engine coolant listed in
this manual for the cooling system. See
Recommended Fluids and Lubricants on
page 447for more information.
Checking Coolant
The coolant recovery
tank cap has this
symbol on it.
338

It is located toward the rear of the engine
compartment on the passenger’s side of the
vehicle. SeeEngine Compartment Overview on
page 324for more information on location.
The vehicle must be on a level surface. When
your engine is cold, the coolant level should be at
FULL COLD, or a little higher. When your
engine is warm, the level could be above the
FULL COLD level.
Adding Coolant
If you need more coolant, add the proper
DEX-COOL®coolant mixture at the coolant
recovery tank.
{CAUTION:
Turning the radiator pressure cap when
the engine and radiator are hot can allow
steam and scalding liquids to blow out
and burn you badly. With the coolant
recovery tank, you will almost never
have to add coolant at the radiator.
CAUTION: (Continued)
CAUTION: (Continued)
Never turn the radiator pressure
cap — even a little — when the engine
and radiator are hot.
Add coolant mixture at the recovery tank, but be
careful not to spill it.
{CAUTION:
You can be burned if you spill coolant on
hot engine parts. Coolant contains
ethylene glycol, and it will burn if the
engine parts are hot enough. Do not spill
coolant on a hot engine.
Occasionally check the coolant level in the
radiator. For information on how to add coolant to
the radiator, seeCooling System on page 342.
339

Radiator Pressure Cap
Notice:If the pressure cap is not tightly
installed, coolant loss and possible engine
damage may occur. Be sure the cap is properly
and tightly secured.
SeeEngine Compartment Overview on page 324
for more information on location.
Engine Overheating
A coolant temperature gage is on the instrument
panel. SeeEngine Coolant Temperature Gage
on page 187.
The air conditioning might stop working if the
engine is too hot. This is normal and helps cool
the engine.
If Steam Is Coming From Your Engine
{CAUTION:
Steam from an overheated engine can
burn you badly, even if you just open the
hood. Stay away from the engine if you
see or hear steam coming from it. Just
turn it off and get everyone away from the
vehicle until it cools down. Wait until
there is no sign of steam or coolant
before you open the hood.
If you keep driving when your engine is
overheated, the liquids in it can catch re.
You or others could be badly burned.
Stop your engine if it overheats, and get
out of the vehicle until the engine is cool.
Notice:If your engine catches re because
you keep driving with no coolant, your vehicle
can be badly damaged. The costly repairs
would not be covered by your warranty.
340

Cooling System
When you decide it is safe to lift the hood, here is
what you will see:
A. Coolant Recovery Tank
B. Engine Cooling Fan
C. Radiator Pressure Cap
If the coolant inside the coolant recovery tank is
boiling, do not do anything else until it cools down.
The vehicle should be parked on a level surface.When the engine is cold, the coolant level should
be at least up to the FULL COLD mark. If it is
not, you may have a leak at the pressure cap or in
the radiator hoses, heater hoses, radiator, water
pump or somewhere else in the cooling system.
342

{CAUTION:
Heater and radiator hoses, and other
engine parts, can be very hot. Do not
touch them. If you do, you can be burned.
Do not run the engine if there is a leak. If
you run the engine, it could lose all
coolant. That could cause an engine re,
and you could be burned. Get any leak
xed before you drive the vehicle.
If there seems to be no leak, start the engine
again. The engine cooling fan speed should
increase when idle speed is doubled by pushing
the accelerator pedal down. If it does not,
your vehicle needs service. Turn off the engine.Notice:Engine damage from running your
engine without coolant is not covered by
your warranty.
Notice:Using coolant other than DEX-COOL®
may cause premature engine, heater core,
or radiator corrosion. In addition, the engine
coolant could require changing sooner, at
30,000 miles (50 000 km) or 24 months,
whichever occurs rst. Any repairs would
not be covered by your warranty. Always
use DEX-COOL
®(silicate-free) coolant in
your vehicle.
343