engine PONTIAC TORRENT 2007 Repair Manual

If You Do Decide To Pull A Trailer
If you do, here are some important points:
There are many different laws, including speed
limit restrictions, having to do with trailering.
Make sure your rig will be legal, not only where
you live but also where you will be driving.
A good source for this information can be state
or provincial police.
Consider using a sway control. See “Hitches”
later in this section.
Do not tow a trailer at all during the rst
500 miles (800 km) your new vehicle is driven.
Your engine, axle or other parts could be
damaged.
During the rst 500 miles (800 km) that you
tow a trailer, do not drive over 50 mph
(80 km/h) and do not make starts at full
throttle. This helps your engine and other parts
of your vehicle wear in at the heavier loads.
Three important considerations have to do with
weight:
Weight of the trailer
Weight of the trailer tongue
Weight on your vehicle’s tires
Weight of the Trailer
How heavy can a trailer safely be?
Your vehicle can tow up to 3,500 lbs (1 575 kg).
But even that can be too heavy.
It depends on how you plan to use your rig. For
example, speed, altitude, road grades, outside
temperature and how much your vehicle is used to
pull a trailer are all important. It can also depend
on any special equipment that you have on
your vehicle, and the amount of tongue weight the
vehicle can carry. See “Weight of the Trailer
Tongue” later in this section for more information.
Maximum trailer weight is calculated assuming
only the driver is in the tow vehicle and it has all
the required trailering equipment. The weight
of additional optional equipment, passengers and
cargo in the tow vehicle must be subtracted
from the maximum trailer weight.
You can ask your dealer for our trailering
information or advice, or you can write us at our
Customer Assistance Offices. SeeCustomer
Assistance Offices on page 460for more
information.
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Total Weight on Your Vehicle’s Tires
Be sure your vehicle’s tires are inated to the
upper limit for cold tires. You will nd these
numbers on the Certication/Tire Label at the rear
edge of the driver’s door, or seeLoading Your
Vehicle on page 321. Then be sure you do not go
over the GVW limit for your vehicle, including
the weight of the trailer tongue.
Hitches
It is important to have the correct hitch equipment.
Crosswinds, large trucks going by and rough
roads are a few reasons why you will need the
right hitch. Here are some rules to follow:
If you will be pulling a trailer that, when
loaded, will weigh more than 2,000 lbs
(900 kg), be sure to use a properly mounted,
weight-carrying hitch and sway control of
the proper size. This equipment is very
important for proper vehicle loading and good
handling when you’re driving.
Will you have to make any holes in the body of
your vehicle when you install a trailer hitch?If you do, remember to seal the holes when you
remove the hitch. If you do not seal them,
deadly carbon monoxide (CO) from your
exhaust can get into your vehicle. SeeEngine
Exhaust on page 127. Dirt and water can, too.
Safety Chains
You should always attach chains between your
vehicle and your trailer. Cross the safety
chains under the tongue of the trailer to help
prevent the tongue from contacting the road if it
becomes separated from the hitch. Instructions
about safety chains may be provided by the hitch
manufacturer or by the trailer manufacturer.
Follow the manufacturer’s recommendation for
attaching safety chains and do not attach them to
the bumper. Always leave just enough slack so
you can turn with your rig. Never allow safety
chains to drag on the ground.
Trailer Brakes
If your trailer weighs more than 1,000 lbs (450 kg)
loaded, then it needs its own brakes – and they
must be adequate. Be sure to read and follow the
instructions for the trailer brakes so you will be
able to install, adjust and maintain them properly.
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Because your vehicle may have anti-lock brakes,
do not try to tap into your vehicle’s brake system.
If you do, both brake systems will not work well,
or at all.
Driving with a Trailer
{CAUTION:
If you have the liftgate open and you pull
a trailer with your vehicle, carbon
monoxide (CO) could come into your
vehicle. You cannot see or smell CO. It
can cause unconsciousness or death. See
Engine Exhaust on page 127. To maximize
your safety when towing a trailer:
Have your exhaust system inspected
for leaks, and make necessary repairs
before starting on your trip.
Keep the liftgate closed.
CAUTION: (Continued)
CAUTION: (Continued)

If exhaust does come into your vehicle
through a window in the rear or
another opening, drive with your front,
main heating or cooling system on
and with the fan on any speed. This
will bring fresh, outside air into your
vehicle. Do not use the climate control
setting for maximum air because it
only recirculates the air inside your
vehicle. SeeClimate Control System
on page 166.
Towing a trailer requires a certain amount of
experience. Before setting out for the open road,
you will want to get to know your rig. Acquaint
yourself with the feel of handling and braking with
the added weight of the trailer. And always
keep in mind that the vehicle you are driving is
now a good deal longer and not nearly as
responsive as your vehicle is by itself.
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3. When the wheel chocks are in place,
release the regular brakes until the chocks
absorb the load.
4. Reapply the regular brakes. Then apply your
parking brake, and then shift to PARK (P).
5. Release the regular brakes.
When You Are Ready to Leave After
Parking on a Hill
1. Apply your regular brakes and hold the pedal
down while you do the following:
Start your engine.
Shift into a gear.
Release the parking brake.
2. Let up on the brake pedal.
3. Drive slowly until the trailer is clear of
the chocks.
4. Stop and have someone pick up and
store the chocks.
Maintenance When Trailer Towing
Your vehicle will need service more often when
you are pulling a trailer. See the Maintenance
Schedule for more on this. Things that are
especially important in trailer operation are
automatic transaxle uid, engine oil, belts, cooling
system and brake system. Each of these is
covered in this manual, and the Index will help
you nd them quickly. If you are trailering, it is a
good idea to review these sections before you
start your trip.
Check periodically to see that all hitch nuts and
bolts are tight.
335

Service........................................................ 339
Accessories and Modications................... 339
California Proposition 65 Warning.............. 340
Doing Your Own Service Work.................. 340
Adding Equipment to the Outside of Your
Vehicle................................................... 341
Fuel............................................................. 341
Gasoline Octane........................................ 341
Gasoline Specications.............................. 341
California Fuel........................................... 342
Additives................................................... 342
Fuels in Foreign Countries........................ 343
Filling the Tank......................................... 343
Filling a Portable Fuel Container............... 345
Checking Things Under the Hood.............. 346
Hood Release........................................... 347
Engine Compartment Overview.................. 348
Engine Oil................................................. 349
Engine Oil Life System.............................. 352
Engine Air Cleaner/Filter............................ 354
Automatic Transaxle Fluid......................... 357
Engine Coolant.......................................... 357
Engine Overheating................................... 360Overheated Engine Protection
Operating Mode..................................... 362
Cooling System......................................... 362
Windshield Washer Fluid........................... 368
Brakes...................................................... 369
Battery...................................................... 372
Jump Starting............................................ 373
All-Wheel Drive........................................... 378
Bulb Replacement....................................... 380
Halogen Bulbs........................................... 380
Headlamps, Front Turn Signal,
Sidemarker, and Parking Lamps............. 381
Taillamps, Turn Signal, Stoplamps and
Back-up Lamps...................................... 382
License Plate Lamp................................... 383
Replacement Bulbs................................... 384
Windshield Wiper Blade Replacement....... 384
Tires............................................................ 386
Tire Sidewall Labeling............................... 387
Tire Terminology and Denitions............... 390
Ination - Tire Pressure............................. 393
Tire Pressure Monitor System................... 395
Tire Inspection and Rotation...................... 399
Section 5 Service and Appearance Care
337

When It Is Time for New Tires.................. 401
Buying New Tires...................................... 401
Different Size Tires and Wheels................ 403
Uniform Tire Quality Grading..................... 403
Wheel Alignment and Tire Balance............ 405
Wheel Replacement.................................. 405
Tire Chains............................................... 406
If a Tire Goes Flat.................................... 407
Changing a Flat Tire................................. 408
Removing the Spare Tire and Tools.......... 409
Removing the Flat Tire and Installing the
Spare Tire............................................. 411
Storing a Flat or Spare Tire and Tools...... 418
Compact Spare Tire.................................. 420
Appearance Care........................................ 420
Cleaning the Inside of Your Vehicle.......... 420
Fabric/Carpet............................................. 422
Leather...................................................... 423
Instrument Panel, Vinyl, and Other Plastic
Surfaces................................................ 424
Care of Safety Belts.................................. 424
Weatherstrips............................................ 425Washing Your Vehicle............................... 425
Cleaning Exterior Lamps/Lenses................ 425
Finish Care............................................... 425
Windshield and Wiper Blades.................... 426
Aluminum or Chrome-Plated Wheels......... 426
Tires......................................................... 427
Sheet Metal Damage................................. 427
Finish Damage.......................................... 428
Underbody Maintenance............................ 428
Chemical Paint Spotting............................ 428
Vehicle Care/Appearance Materials............ 429
Vehicle Identication.................................. 430
Vehicle Identication Number (VIN)........... 430
Service Parts Identication Label............... 430
Electrical System........................................ 431
Add-On Electrical Equipment..................... 431
Windshield Wiper Fuses............................ 431
Fuses and Circuit Breakers....................... 431
Instrument Panel Fuse Block..................... 432
Engine Compartment Fuse Block............... 434
Capacities and Specications.................... 436
Section 5 Service and Appearance Care
338

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 474.
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 452.
340

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.
Gasoline Octane
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.
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 342for additional information.
341

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 184. 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.
Gasolines containing oxygenates, such as ethers
and ethanol, and reformulated gasolines may
be available in your area. General Motors
recommends that you use these gasolines if they
comply with the specications described earlier.
However, E85 (85% ethanol) and other fuels
containing more than 10% ethanol must not be
used in vehicles that were not designed for
those fuels.
Notice:Your vehicle was not designed for
fuel that contains methanol. Do not use
fuel containing methanol. It can corrode metal
parts in your fuel system and also damage
the plastic and rubber parts. That damage
would not be covered under your warranty.
342

Some gasolines that are not reformulated for low
emissions may contain an octane-enhancing
additive called methylcyclopentadienyl manganese
tricarbonyl (MMT); ask the attendant where you
buy gasoline whether the fuel contains MMT.
General Motors recommends against the use of
such gasolines. Fuels containing MMT can reduce
the life of spark plugs and the performance of
the emission control system may be affected. The
malfunction indicator lamp may turn on. If this
occurs, return to your dealer for service.
Fuels in Foreign Countries
If you plan on driving in another country outside
the United States or Canada, the proper fuel may
be hard to nd. Never use leaded gasoline or
any other fuel not recommended in the previous
text on fuel. Costly repairs caused by use of
improper fuel would not be covered by your
warranty.
To check the fuel availability, ask an auto club, or
contact a major oil company that does business
in the country where you will be driving.
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.
343