Get EMISSION CONTROL SYSTEM Guide for Hyundai Tucson SUV First Generation (2004-2009)

Emission Control System ............................................ 7-2

EGR System ................................................................ 7-3

Catalytic Converter ...................................................... 7-3

EMISSION CONTROL SYSTEM

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EMISSION CONTROL SYSTEMS

H010B01A-AAT

1. Crankcase Emission Control

System

The positive crankcase ventilation

system is employed to prevent air

pollution caused by blow-by gases

being emitted from the crankcase.

This system supplies fresh filtered air

to the crankcase through the air in-

take hose. Inside the crankcase, which

the fresh air mixes with blow-by gases,

which then pass through the PCV

valve into the induction system.

EMISSION CONTROL

SYSTEMS

H010A01A-GAT

(If installed)

Your Hyundai is equipped with an

emission control system to meet all

requirements of the Emission prohibi-

tion rules of your province.

There are three emission control sys-

tems which are as follows.

(1) Crankcase emission control sys-

tem

(2) Evaporative emission control sys-

tem

(3) Exhaust emission control system

In order to assure the proper function

of the emission control systems, it is

recommended that you have your car

inspected and maintained by an au-

thorized Hyundai dealer in accordance

with the maintenance schedule in this

manual.

H010C02Y-GAT

2. Evaporative Emission

Control System

The Evaporative Emission Control

System is designed to prevent fuel

vapors from escaping into the atmo-

sphere.

Canister

While the engine is inoperative, fuel

vapors generated inside the fuel tank

are absorbed and stored in the canis-

ter. When the engine is running, the

fuel vapors absorbed in the canister

are drawn into the induction system

through the purge control solenoid

valve.

Purge Control Solenoid Valve

The purge control solenoid valve is

controlled by the ECM; when the en-

gine coolant temperature is low, and

during idling, it closes, so that evapo-

rated fuel is not taken into the surge

tank. After engine warm-up, during

ordinary driving, it opens so as to

introduce evaporated fuel to the surge

tank.

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EMISSION CONTROL SYSTEMS

EGR SYSTEM CATALYTIC CONVERTER

H010D01A-AAT

3. Exhaust Emission Control

System

The Exhaust Emission Control Sys-

tem is a highly effective system which

controls exhaust emissions while

maintaining good vehicle performace.

H010E01Y-GAT

(If installed)

This system helps control nitrogen

oxides by recirculating a part of the

exhaust gas into the engine, thereby

reducing cylinder combustion tem-

perature.

H020A02A-AAT

; For a Gasoline Engine

(If installed)

Hyundai vehicles are equipped with a

monolith type three-way catalytic con-

verter to reduce the carbon monoxide,

hydrocarbons and nitrogen oxides con-

tained in the exhaust gas. Exhaust

gases passing through the catalytic

converter may cause it to operate at a

very high temperature. The introduc-

tion of large amounts of unburned gaso-

line into the exhaust may cause the

catalytic converter to overheat and

create a fire hazard. This risk may be

reduced by observing the following:

H020A01JM

Catalytic Converter

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EMISSION CONTROL SYSTEMS

WARNING:

o Use unleaded fuel only.

o Maintain the engine in good

operating condition. Extremely

high catalytic converter tempera-

tures can result from improper

operation of the electrical, igni-

tion or multiport electronic fuel

injection.

o If your engine stalls, pings,

knocks, or is hard to start, have

your Hyundai dealer inspect and

repair the problem as soon as

possible.

o Avoid driving with a very low

fuel level. Running out of gaso-

line may cause the engine to

misfire and result in damage to

the catalytic converter.

o Avoid idling the engine for peri-

ods longer than 10 minutes.

o The vehicle should not be

pushed or pulled to get started.

This may cause the catalytic

converter to overheat and cre-

ate a fire hazard.

o Do not touch the catalytic con-

verter or any other part of the

exhaust system while the cata-

lytic converter is hot. Shut off

the engine, wait for at least one

hour before touching the cata-

lytic converter or any other part

of the exhaust system.

o Remember that your Hyundai

dealer is your best source of

assistance.

o Do not park, idle or drive your

vehicle over any combustible ma-

terial such as grass, paper, leaves

or rags. These materials might

contact the hot catalytic converter

and a fire might result.

H020D01S-GAT

; For a Diesel Engine

All Hyundai vehicles are equipped

with oxidation type catalytic converter

to reduce the carbon monoxide, hy-

drocarbons and particulate contained

in the exhaust gas.

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EMISSION CONTROL SYSTEM for Your Hyundai Tucson SUV First Generation (2004-2009)

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