Get Maintenance -> Emission Control System Guide for Hyundai Tucson SUV 2020

EMISSION CONTROL SYSTEM

The emission control system of your

vehicle is covered by a written limited

warranty. Please see the warranty

information contained in the Owner’s

Handbook & Warranty Information

booklet in your vehicle.

1. Crankcase Emission Control

System

NOTICE

For

the

Inspection

and

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

intake hose. Inside the crankcase,

the fresh air mixes with blow-by

gases, which then pass through the

PCV valve into the induction system.

Maintenance Test (With Electronic

Stability Control (ESC) system)

• To prevent the vehicle from mis-

firing during dynamometer test-

ing, turn the Electronic Stability

Control (ESC) system off by

pressing the ESC switch (ESC

OFF light illuminated).

• After dynamometer testing is

completed, turn the ESC system

back on by pressing the ESC

switch again.

Your vehicle is equipped with an

emission control system to meet all

applicable emission regulations.

There are three emission control

systems, as follows.

(1) Crankcase emission control sys-

tem

(2) Evaporative emission control sys-

tem

2. Evaporative Emission Control

System Including Onboard

Refueling Vapor Recovery

(ORVR)

(3) Exhaust emission control system

The Evaporative Emission Control

System is designed to prevent fuel

vapors from escaping into the atmos-

phere. The ORVR system is

designed to allow the vapors from

the fuel tank to be loaded into a can-

ister while refueling at the gas sta-

tion, preventing the escape of fuel

vapors into the atmosphere.

In order to assure the proper function

of the emission control systems, it is

recommended that you have your

vehicle inspected and maintained by

an authorized HYUNDAI dealer in

accordance with the maintenance

schedule in this manual.

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Maintenance

Canister

Engine exhaust (carbon monox-

ide) precautions

3. Exhaust Emission Control

System

The Exhaust Emission Control

System is a highly effective system

which controls exhaust emissions

while maintaining good vehicle per-

formance.

When the engine starts or fails to

start, excessive attempts to restart

the engine may cause damage to the

emission system.

Fuel vapors generated inside the fuel

tank are absorbed and stored in the

onboard canister.When the engine is

running, the fuel vapors absorbed in

the canister are drawn into the surge

tank through the purge control sole-

noid valve.

• Carbon monoxide can be present

with other exhaust fumes. If you

smell exhaust fumes of any kind in

your vehicle, drive with all the win-

dows fully open. Have your vehicle

checked and repaired immediately.

Purge Control Solenoid Valve

(PCSV)

WARNING

Engine exhaust gases contain

carbon monoxide (CO). Though

colorless and odorless, it is

dangerous and could be lethal if

inhaled. Follow the instructions

on this page to avoid CO poi-

soning.

The purge control solenoid valve is

controlled by the Engine Control

Module (ECM); when the engine

coolant temperature is low during

idling, the PCSV closes so that evap-

orated fuel is not taken into the

engine. After the engine warms-up

during ordinary driving, the PCSV

opens to introduce evaporated fuel to

the engine.

Vehicle modifications

• This vehicle should not be modi-

fied. Modification of your vehicle

could affect its performance, safety

or durability and may even violate

governmental safety and emis-

sions regulations.

In addition, damage or performance

problems resulting from any modifi-

cation may not be covered under

warranty.

• If you use unauthorized electronic

devices, it may cause the vehicle to

operate abnormally, wire damage,

battery discharge and fire. For your

safety, do not use unauthorized

electronic devices.

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• Do not operate the engine in con-

fined or closed areas (such as

garages) any more than what is

necessary to move the vehicle in or

out of the area.

Operating precautions for cat-

alytic converters (if equipped)

WARNING

CALIFORNIA PROPOSITION 65

WARNING

Engine exhaust and a wide vari-

ety of automobile components

and parts, including compo-

nents found in the interior fur-

nishings in a vehicle, contain or

emit chemicals known to the

State of California to cause can-

cer and birth defects and repro-

ductive harm. In addition, cer-

tain fluids contained in vehicles

and certain products of compo-

nent wear contain or emit chem-

icals known to the State of

California to cause cancer and

birth defects or other reproduc-

tive harm.

• When the vehicle is stopped in an

open area for more than a short

time with the engine running,

adjust the ventilation system (as

needed) to draw outside air into the

vehicle.

• Never sit in a parked or stopped

vehicle for any extended time with

the engine running.

• When the engine stalls or fails to

start, excessive attempts to restart

the engine may cause damage to

the emission control system.

The exhaust system and cat-

alytic converter are very hot

during and immediately after

the engine has been running.To

avoid SERIOUS INJURY or

DEATH:

• Do not park, idle, or drive the

vehicle over or near flamma-

ble objects, such as grass,

vegetation, paper, leaves, etc.

A hot exhaust system can

ignite flammable items under

your vehicle.

• Keep away from the exhaust

system and catalytic convert-

er or you may get burned.

Also, Do not remove the heat

sink around the exhaust sys-

tem, do not seal the bottom of

the vehicle, and do not coat

the vehicle for corrosion con-

trol. It may present a fire risk

under certain conditions.

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Maintenance

Your vehicle is equipped with a cat- • Do not modify or tamper with any

alytic converter emission control

device. To prevent damage to the

catalytic converter and to your vehi-

cle, take the following precautions:

part of the engine or emission con-

trol system. All inspections and

adjustments must be made by an

authorized HYUNDAI dealer.

• Use only UNLEADED FUEL for • Avoid driving with extremely low

gasoline engines.

fuel level. If you run out of gasoline,

it could cause the engine to misfire

and result in excessive loading of

the catalytic converter.

• Do not operate the vehicle when

there are signs of engine malfunc-

tion, such as misfire or a noticeable

loss of performance.

• Do not misuse or abuse the

engine. Examples of misuse are

coasting with the engine off and

descending steep grades in gear

with the engine off.

• Do not operate the engine at high

idle speed for extended periods (5

minutes or more).

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Maintenance -> Emission Control System for Your Hyundai Tucson SUV 2020

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