2007 CHEVROLET HHR engine

When It Is Time for New Tires.................. 347
Buying New Tires...................................... 347
Different Size Tires and Wheels................ 349
Uniform Tire Quality Grading..................... 350
Wheel Alignment and Tire Balance............ 351
Wheel Replacement.................................. 352
Tire Chains............................................... 353
If a Tire Goes Flat.................................... 354
Changing a Flat Tire................................. 355
Removing the Spare Tire and Tools.......... 356
Removing the Flat Tire and Installing
the Spare Tire....................................... 359
Storing a Flat or Spare Tire and Tools...... 365
Compact Spare Tire.................................. 369
Appearance Care........................................ 370
Cleaning the Inside of Your Vehicle.......... 370
Fabric/Carpet............................................. 371
Instrument Panel, Vinyl, and Other
Plastic Surfaces..................................... 372
Care of Safety Belts.................................. 373
Weatherstrips............................................ 373
Washing Your Vehicle............................... 373
Cleaning Exterior Lamps/Lenses................ 374Finish Care............................................... 374
Windshield and Wiper Blades.................... 375
Aluminum or Chrome-Plated Wheels......... 375
Tires......................................................... 376
Sheet Metal Damage................................. 376
Finish Damage.......................................... 377
Underbody Maintenance............................ 377
Chemical Paint Spotting............................ 377
Vehicle Care/Appearance Materials............ 378
Vehicle Identication.................................. 379
Vehicle Identication Number (VIN)........... 379
Service Parts Identication Label............... 379
Electrical System........................................ 380
Add-On Electrical Equipment..................... 380
Headlamp Wiring....................................... 380
Windshield Wiper Fuses............................ 380
Power Windows and Other Power
Options.................................................. 380
Fuses and Circuit Breakers....................... 381
Floor Console Fuse Block......................... 381
Engine Compartment Fuse Block............... 383
Capacities and Specications.................... 386
Section 5 Service and Appearance Care
288

California Proposition 65 Warning
Most motor vehicles, including this one, contain
and/or emit chemicals known to the State of
California to cause cancer and birth defects or other
reproductive harm. Engine exhaust, many parts and
systems (including some inside the vehicle), many
uids, and some component wear by-products
contain and/or emit these chemicals.
Doing Your Own Service Work
{CAUTION:
You can be injured and your vehicle could
be damaged if you try to do service work
on a vehicle without knowing enough
about it.
Be sure you have sufficient knowledge,
experience, the proper replacement
parts, and tools before you attempt any
vehicle maintenance task.
CAUTION: (Continued)
CAUTION: (Continued)

Be sure to use the proper nuts, bolts,
and other fasteners. English and
metric fasteners can be easily
confused. If you use the wrong
fasteners, parts can later break or fall
off. You could be hurt.
If you want to do some of your own service work,
you will want to use the proper service manual.
It tells you much more about how to service your
vehicle than this manual can. To order the
proper service manual, seeService Publications
Ordering Information on page 430.
Your vehicle has an airbag system. Before
attempting to do your own service work, see
Servicing Your Airbag-Equipped Vehicle on
page 88.
You should keep a record with all parts receipts
and list the mileage and the date of any service
work you perform. SeeMaintenance Record
on page 407.
290

Adding Equipment to the Outside
of Your Vehicle
Things you might add to the outside of your
vehicle can affect the airow around it. This may
cause wind noise and affect windshield washer
performance. Check with your dealer before
adding equipment to the outside of your vehicle.
Fuel
Use of the recommended fuel is an important part
of the proper maintenance of your vehicle. To
help keep your engine clean and maintain optimum
vehicle performance, GM recommends the use
of gasoline advertised as TOP TIER Detergent
Gasoline.
The 8th digit of your Vehicle Identication Number
(VIN) shows the code letter or number that
identies your engine. You will nd the VIN at the
top left of the instrument panel. SeeVehicle
Identification Number (VIN) on page 379.
Gasoline Octane
If your vehicle has the 2.2L L4 engine
(VIN Code D), use regular unleaded gasoline with
a posted octane rating of 87 or higher. If the
octane rating is less than 87, you may notice an
audible knocking noise when you drive, commonly
referred to as spark knock. If this occurs, use a
gasoline rated at 87 octane or higher as soon
as possible. If you are using gasoline rated at
87 octane or higher and you hear heavy knocking,
your engine needs service.
If your vehicle has the 2.4L L4 engine
(VIN Code P), use premium unleaded gasoline
with a posted octane rating of 91 or higher. You
may also use regular unleaded gasoline rated at
87 octane or higher, but your vehicle’s acceleration
may be slightly reduced, and you may notice a
slight audible knocking noise, commonly referred to
as spark knock. If the octane is less than 87, you
may notice a heavy knocking noise when you drive.
If this occurs, use a gasoline rated at 87 octane or
higher as soon as possible. Otherwise, you might
damage your engine. If you are using gasoline
rated at 87 octane or higher and you hear heavy
knocking, your engine needs service.
291

Gasoline Specications
At a minimum, gasoline should meet ASTM
specication D 4814 in the United States or
CAN/CGSB-3.5 in Canada. Some gasolines may
contain an octane-enhancing additive called
methylcyclopentadienyl manganese tricarbonyl
(MMT). General Motors recommends against the
use of gasolines containing MMT. SeeAdditives
on page 292for additional information.
California Fuel
If your vehicle is certied to meet California
Emissions Standards, it is designed to operate on
fuels that meet California specications. See
the underhood emission control label. If this fuel is
not available in states adopting California
emissions standards, your vehicle will operate
satisfactorily on fuels meeting federal
specications, but emission control system
performance may be affected. The malfunction
indicator lamp may turn on and your vehicle may
fail a smog-check test.SeeMalfunction Indicator Lamp on page 188.If
this occurs, return to your authorized GM dealer for
diagnosis. If it is determined that the condition is
caused by the type of fuel used, repairs may
not be covered by your warranty.
Additives
To provide cleaner air, all gasolines in the United
States are now required to contain additives
that will help prevent engine and fuel system
deposits from forming, allowing your emission
control system to work properly. In most cases,
you should not have to add anything to your fuel.
However, some gasolines contain only the
minimum amount of additive required to meet U.S.
Environmental Protection Agency regulations.
To help keep fuel injectors and intake valves clean,
or if your vehicle experiences problems due to
dirty injectors or valves, look for gasoline that is
advertised as TOP TIER Detergent Gasoline. Also,
your dealer has additives that will help correct
and prevent most deposit-related problems.
292

Filling the Tank
{CAUTION:
Fuel vapor burns violently and a fuel re
can cause bad injuries. To help avoid
injuries to you and others, read and follow
all the instructions on the pump island.
Turn off your engine when you are
refueling. Do not smoke if you are near
fuel or refueling your vehicle. Keep
sparks, ames, and smoking materials
away from fuel. Do not leave the fuel
pump unattended when refueling your
vehicle. This is against the law in some
places. Keep children away from the fuel
pump; never let children pump fuel.The tethered fuel cap is located behind a hinged
fuel door on the passenger’s side of the vehicle.
To open the fuel door, apply pressure in the center
of the rear edge of the fuel door and it will pop open.
To remove the fuel cap, turn it slowly
counterclockwise. The fuel cap has a spring in it; if
the cap is released too soon, it will spring back
to the right.
While refueling, hang the tethered fuel cap from
the hook on the fuel door.
294

Filling a Portable Fuel Container
{CAUTION:
Never ll a portable fuel container while it
is in your vehicle. Static electricity
discharge from the container can ignite the
gasoline vapor. You can be badly burned
and your vehicle damaged if this occurs.
To help avoid injury to you and others:
Dispense gasoline only into approved
containers.
Do not ll a container while it is inside a
vehicle, in a vehicle’s trunk, pickup
bed, or on any surface other than the
ground.
Bring the ll nozzle in contact with the
inside of the ll opening before
operating the nozzle. Contact should
be maintained until the lling is
complete.
Do not smoke while pumping gasoline.
Checking Things Under
the Hood
{CAUTION:
An electric fan under the hood can start up
and injure you even when the engine is not
running. Keep hands, clothing, and tools
away from any underhood electric fan.
{CAUTION:
Things that burn can get on hot engine
parts and start a re. These include
liquids like fuel, oil, coolant, brake uid,
windshield washer and other uids, and
plastic or rubber. You or others could be
burned. Be careful not to drop or spill
things that will burn onto a hot engine.
296

Engine Compartment Overview
When you open the hood on the 2.4L engine (2.2L engine similar), here is what you will see:
298

A. Windshield Washer Fluid Reservoir. See
“Adding Washer Fluid” underWindshield
Washer Fluid on page 316.
B. Pressure Cap. SeePressure Cap on page 309.
C. Coolant Recovery Tank. See “Checking
Coolant” underEngine Coolant on page 306.
D. Engine Air Cleaner/Filter. SeeEngine Air
Cleaner/Filter on page 304.
E. Electric Engine Cooling Fans (Out of View).
See Cooling SystemCooling System on
page 312.
F. Engine Oil Fill Cap. See “When to Add Engine
Oil” underEngine Oil on page 299.
G. Engine Oil Dipstick (Out of View). See
“Checking Engine Oil” underEngine Oil on
page 299.
H. Brake Master Cylinder Reservoir. SeeBrakes
on page 317andHydraulic Clutch on
page 306.
I. Remote Positive (+) Terminal. SeeJump
Starting on page 320.J. Engine Compartment Fuse Block. SeeEngine
Compartment Fuse Block on page 383.
K. Remote Negative (−) Terminal. SeeJump
Starting on page 320.
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 298
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 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.
299