Maintenance -> Emission control system for Your Kia Sorento SUV 2023

Maintenance  
Emission control system  
crankcase, the fresh air mixes with blow-  
by gases, which then pass through the  
Positive Crankcase Ventilation (PCV)  
valve into the induction system.  
Emission control system  
The emission control system of your  
vehicle is covered by a written limited  
warranty. Please see the warranty infor  
mation contained in the Warranty &  
Consumer Information manual in your  
vehicle.  
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2. Evaporative emission control  
(including Onboard Refueling  
Vapor Recovery (ORVR)) system  
The evaporative emission control system  
is designed to prevent fuel vapors from  
escaping into the atmosphere. (The  
ORVR system is designed to allow the  
vapors from the fuel tank to be loaded  
into a canister while refueling at the gas  
station, preventing the escape of fuel  
vapors into the atmosphere.)  
Your vehicle is equipped with an emis  
sion control system to meet all applica  
ble emission regulations. There are three  
emission control systems, as follows.  
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1. Crankcase emission control system  
2. Evaporative emission control system  
3. Exhaust emission control system  
In order to assure the proper function of  
the emission control systems, it is rec  
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ommended that you have your vehicle  
inspected and maintained by an autho  
rized Kia dealer in accordance with the  
maintenance schedule in this manual.  
Canister  
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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 Solenoid  
Valve.  
Caution for the Inspection and  
Maintenance Test (With Elec  
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tronic Stability Control (ESC) sys  
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tem)  
To prevent the vehicle from misfir  
ing during dynamometer testing,  
turn the ESC off by pressing the  
ESC switch.  
After dynamometer testing is com  
pleted, turn the ESC back on by  
pressing the ESC switch again.  
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Purge Control Solenoid Valve  
(PCSV)  
The Purge Control Solenoid Valve  
(PCSV) is controlled by the Engine Con  
trol Module (ECM); when the engine  
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coolant temperature is low during idling,  
the PCSV closes so that evaporated fuel  
is not taken into the engine. After the  
engine warms up during ordinary driv  
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1. Crankcase emission control  
system  
The Positive Crankcase Ventilation sys  
ing, the PCSV opens to introduce evapo  
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rated fuel to the engine.  
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tem is employed to prevent air pollution  
caused by blow-by gases being emitted  
3. Exhaust emission control sys  
tem  
The exhaust emission control system is a  
highly effective system which controls  
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from the crankcase. This system sup  
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plies fresh filtered air to the crankcase  
through the air intake hose. Inside the  
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Maintenance  
Emission control system  
exhaust emissions while maintaining  
good vehicle performance.  
more than what is necessary to move  
the vehicle in or out of the area.  
僅 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.  
Vehicle modifications  
This vehicle should not be modified.  
Modification of your vehicle could affect  
its performance, safety or durability and  
may even violate governmental safety  
and emissions regulations. In addition,  
damage or performance problems  
resulting from any modification may not  
be covered under warranty.  
僅 Never sit in a parked or stopped vehi  
cle for any extended time with the  
engine running.  
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僅 When the engine stalls or fails to start,  
excessive attempts to restart the  
engine may cause damage to the  
emission control system.  
僅 If you use authorized electronic  
devices, it may cause the vehicle to  
operate abnormally, wire damage,  
battery discharge and fire. For your  
safety, do not use unauthorized elec  
tronic devices.  
Operating precautions for cata  
lytic converters  
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WARNING  
Engine exhaust gas precautions  
(carbon monoxide)  
僅 Carbon monoxide can be present with  
other exhaust fumes. Therefore, if you  
smell exhaust fumes of any kind  
inside your vehicle, have it inspected  
and repaired immediately. If you ever  
suspect exhaust fumes are coming  
into your vehicle, drive it only with all  
the windows fully open. Have your  
vehicle checked and repaired immedi  
ately.  
Catalytic converter  
Keep away from the catalytic converter  
and exhaust system while the vehicle is  
running or immediately thereafter. The  
exhaust and catalytic systems are very  
hot and may burn you.  
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WARNING  
Fire  
僅 Do not park, idle or drive the vehicle  
over or near flammable objects, such  
as grass, vegetation, paper, leaves,  
etc. A hot exhaust system can ignite  
flammable items under your vehicle.  
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WARNING  
Exhaust  
僅 Also, do not remove the heat sink  
around the exhaust system, do not  
seal the bottom of the vehicle or do  
not coat the vehicle for corrosion con  
trol. It may present a fire risk under  
certain conditions.  
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 poisoning.  
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僅 Do not operate the engine in confined  
or closed areas (such as garages) any  
Your vehicle is equipped with a catalytic  
converter emission control device.  
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Maintenance  
Emission control system  
Therefore, the following precautions  
must be observed:  
僅 Use only UNLEADED FUEL for gaso  
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line engines.  
僅 Do not operate the vehicle when there  
are signs of engine malfunction, such  
as misfire or a noticeable loss of per  
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formance.  
僅 Do not misuse or abuse the engine.  
Examples of misuse are coasting with  
the ignition off and descending steep  
grades in gear with the ignition off.  
僅 Do not operate the engine at high idle  
speed for extended periods (5 min  
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utes or more).  
僅 Do not modify or tamper with any  
part of the engine or emission control  
system. All inspections and adjust  
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ments must be made by an autho  
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rized Kia dealer.  
僅 Avoid driving with an extremely low  
fuel level. Running out of fuel could  
cause the engine to misfire, damaging  
the catalytic converter.  
Failure to observe these precautions  
could result in damage to the catalytic  
converter and to your vehicle. Addition  
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ally, such actions could void your war  
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ranties.  
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