Get Maintenance and Specifications -> EMISSION CONTROL SYSTEM Guide for Ford Focus 4 Door Second Generation (2004-2010)

Maintenance and Specifications

• Fuel economy may decrease with lower temperatures during the first

8–10 miles (12–16 km) of driving.

• Driving on flat terrain offers improved fuel economy as compared to

driving on hilly terrain.

• Transaxles give their best fuel economy when operated in the top

cruise gear and with steady pressure on the gas pedal.

• Close windows for high speed driving.

EPA window sticker

Every new vehicle should have the EPA window sticker. Contact your

authorized dealer if the window sticker is not supplied with your vehicle.

The EPA window sticker should be your guide for the fuel economy

comparisons with other vehicles.

It is important to note the box in the lower left corner of the window

sticker. These numbers represent the Range of MPG (L/100 km)

expected on the vehicle under optimum conditions. Your fuel economy

may vary depending upon the method of operation and conditions.

EMISSION CONTROL SYSTEM

Your vehicle is equipped with various emission control components and a

catalytic converter which will enable your vehicle to comply with

applicable exhaust emission standards. To make sure that the catalytic

converter and other emission control components continue to work

properly:

• Use only the specified fuel listed.

• Avoid running out of fuel.

• Do not turn off the ignition while your vehicle is moving, especially at

high speeds.

• Have the items listed in scheduled maintenance information

performed according to the specified schedule.

The scheduled maintenance items listed in scheduled maintenance

information are essential to the life and performance of your vehicle

and to its emissions system.

If other than Ford, Motorcraft or Ford-authorized parts are used for

maintenance replacements or for service of components affecting

emission control, such non-Ford parts should be equivalent to genuine

Ford Motor Company parts in performance and durability.

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Do not park, idle, or drive your vehicle in dry grass or other dry

ground cover. The emission system heats up the engine

compartment and exhaust system, which can start a fire.

Illumination of the

indicator, charging system warning light or the

temperature warning light, fluid leaks, strange odors, smoke or loss of

engine power could indicate that the emission control system is not

working properly.

An improperly operating or damaged exhaust system may allow exhaust

to enter the vehicle. Have a damaged or improperly operating exhaust

system inspected and repaired immediately.

Exhaust leaks may result in entry of harmful and potentially

lethal fumes into the passenger compartment.

Do not make any unauthorized changes to your vehicle or engine. By

law, vehicle owners and anyone who manufactures, repairs, services,

sells, leases, trades vehicles, or supervises a fleet of vehicles are not

permitted to intentionally remove an emission control device or prevent

it from working. Information about your vehicle’s emission system is on

the Vehicle Emission Control Information Decal located on or near the

engine. This decal identifies engine displacement and gives some tune up

specifications.

Please consult your Warranty Guide for complete emission warranty

information.

On board diagnostics (OBD-II)

Your vehicle is equipped with a computer that monitors the engine’s

emission control system. This system is commonly known as the On

Board Diagnostics System (OBD-II). The OBD-II system protects the

environment by ensuring that your vehicle continues to meet

government emission standards. The OBD-II system also assists your

authorized dealer in properly servicing your vehicle. When the

indicator illuminates, the OBD-II system has detected a malfunction.

Temporary malfunctions may cause the

Examples are:

indicator to illuminate.

1. The vehicle has run out of fuel—the engine may misfire or run poorly.

2. Poor fuel quality or water in the fuel—the engine may misfire or run

poorly.

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Maintenance and Specifications

3. The fuel cap may not have been securely tightened. See Fuel filler

cap in this chapter.

4. Driving through deep water – the electrical system may be wet.

These temporary malfunctions can be corrected by filling the fuel tank

with good quality fuel, properly tightening the fuel cap or letting the

electrical system dry out. After three driving cycles without these or any

other temporary malfunctions present, the

indicator should stay off

the next time the engine is started. A driving cycle consists of a cold

engine startup followed by mixed city/highway driving. No additional

vehicle service is required.

If the

indicator remains on, have your vehicle serviced at the first

available opportunity. Although some malfunctions detected by the

OBD-II may not have symptoms that are apparent, continued driving

with the

indicator on can result in increased emissions, lower fuel

economy, reduced engine and transmission smoothness, and lead to more

costly repairs.

Readiness for Inspection/Maintenance (I/M) testing

Some state/provincial and local governments may have

Inspection/Maintenance (I/M) programs to inspect the emission control

equipment on your vehicle. Failure to pass this inspection could prevent

you from getting a vehicle registration. Your vehicle may not pass the I/M

test if the

indicator is on or not working properly (bulb is burned

out), or if the OBD-II system has determined that some of the emission

control systems have not been properly checked. In this case, the vehicle

is considered not ready for I/M testing.

If the

indicator is on or the bulb does not work, the vehicle may

need to be serviced. Refer to the On board diagnostics (OBD-II)

description in this chapter.

If the vehicle’s engine or transmission has just been serviced, or the

battery has recently run down or been replaced, the OBD-II system may

indicate that the vehicle is not ready for I/M testing. To determine if the

vehicle is ready for I/M testing, turn the ignition key to the ON position

for 15 seconds without cranking the engine. If the

eight times, it means that the vehicle is not ready for I/M testing; if

the indicator stays on solid, it means that the vehicle is ready for

indicator blinks

I/M testing.

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Maintenance and Specifications -> EMISSION CONTROL SYSTEM for Your Ford Focus 4 Door Second Generation (2004-2010)

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