How Does the EVAP System Operate, and What Are the Procedures for Replacing Canister Purge Valve,Vapor Canister and Vapor Pressure Sensor on Hyundai Sonata?

The Evaporative Emissions Control (EVAP) system is designed to absorb fuel vapors, releasing them into the intake manifold during engine operation, where they mix with the air-fuel mixture. Key components include the fuel tank filler neck cap, EVAP canister, vapor pressure sensor, canister closed valve, two-way valve, and purge valve, with all but the purge valve located underneath the vehicle. When gasoline evaporates due to heat, it increases pressure in the sealed fuel tank, which is monitored by the vapor pressure sensor that informs the Powertrain Control Module (PCM). The vapors flow into the canister through a two-way valve and are purged into the intake manifold when the PCM activates the purge control solenoid valve. The canister purge control solenoid valve, located in the engine compartment, regulates vapor flow based on PCM commands to prevent a rich air-fuel mixture. During purging, atmospheric air is drawn into the canister to maintain pressure balance, with the canister closed valve controlling this process. The EVAP system diagnostic monitor checks for leaks by running a sequence that involves starting the engine and monitoring temperatures and pressures. If a leak is detected, the Malfunction Indicator Light (MIL) activates, and a Diagnostic Trouble Code (DTC) is stored. The PCM also monitors the canister closed valve and pressure switching valve to ensure proper operation, repeating the monitoring sequence as long as the engine is in closed loop. For replacement, the purge control solenoid valve requires disconnecting the negative battery terminal, removing the engine cover, and detaching the electrical connector and vacuum hoses before installation. Other components, such as the two-way valve, EVAP canister, vapor pressure sensor, and canister closed valve, also involve similar disconnection and reconnection procedures for replacement.

Genuine Hyundai Sonata Vapor Canister

Fuel Vapor Canister

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18 Vapor Canisters found

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Hyundai Sonata CANISTER Assembly
Part Number: 31420-3K600
$666.03 MSRP: $943.97
You Save: $277.94 (30%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Vapor Canister
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 2005-2010 Hyundai Sonata | High Grade, Middle Grade | DOHC - MPI | 4 Door Sedan, Sedan - 4Door 5P
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Hyundai Sonata Canister Assembly-Fuel
Part Number: 31420-3Q500
$364.18 MSRP: $516.16
You Save: $151.98 (30%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Vapor Canister
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 2009-2014 Hyundai Sonata | DOHC - GDI | Sedan - 4Door 5P
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Hyundai Sonata CANISTER Assembly
Part Number: 31420-0A000
$229.01 MSRP: $316.24
You Save: $87.23 (28%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Vapor Canister
- Replaced by: 31420-0A000--SJ1
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 2007-2010 Hyundai Sonata | DOHC - MPI | Sedan - 4Door 5P
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Hyundai Sonata CANISTER Assembly
Part Number: 31420-38100
$264.81 MSRP: $372.05
You Save: $107.24 (29%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Vapor Canister
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 1998-2005 Hyundai Sonata | High Grade, Middle Grade | 4 Door, 4 Door Sedan
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Hyundai Sonata Canister Assembly-Fuel
Part Number: 31420-3Q600
$488.46 MSRP: $692.31
You Save: $203.85 (30%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Vapor Canister
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 2009-2014 Hyundai Sonata | DOHC - GDI, DOHC - TCI/GDI | Sedan - 4Door 5P
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Hyundai Sonata CANISTER Assembly
Part Number: 31420-C2500
$265.51 MSRP: $373.03
You Save: $107.52 (29%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Vapor Canister
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 2015-2019 Hyundai Sonata | DOHC - GDI, DOHC - TCI/GDI | Sedan - 4Door 5P
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Hyundai Sonata CANISTER Assembly
Part Number: 31420-34200
$92.67 MSRP: $130.19
You Save: $37.52 (29%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Vapor Canister
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 1993-1998 Hyundai Sonata | High Grade, Middle Grade | 4 Door
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Hyundai Sonata Canister Assembly-Fuel
Part Number: 31420-29000
$193.42 MSRP: $271.74
You Save: $78.32 (29%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Vapor Canister
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 1993-1998 Hyundai Sonata | High Grade, Middle Grade | 4 Door
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Hyundai Sonata CANISTER Assembly
Part Number: 31420-34700
$82.36 MSRP: $115.71
You Save: $33.35 (29%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Vapor Canister
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 1993-1998 Hyundai Sonata | High Grade, Middle Grade | 4 Door
View related parts
Hyundai Sonata CANISTER Assembly
Part Number: 31420-34000
$92.67 MSRP: $130.19
You Save: $37.52 (29%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Vapor Canister
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 1993-1998 Hyundai Sonata | High Grade, Middle Grade | 4 Door
View related parts
Hyundai Sonata CANISTER Assembly
Part Number: 31410-24500
$97.61 MSRP: $133.98
You Save: $36.37 (28%)
Ships in 1-3 Business Days
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Product Specifications
- Manufacturer Note: JEOKGO
- Replaced by: 31410-33010
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 1988-1993 Hyundai Sonata | High Grade, Middle Grade | 4 Door
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Hyundai Sonata CANISTER Assembly
Part Number: 31410-33010
$95.36 MSRP: $133.98
You Save: $38.62 (29%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Vapor Canister
- Manufacturer Note: KOREA AIR TECH
- Replaces: 31410-24500, 31410-36100
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 1988-1993 Hyundai Sonata | High Grade, Middle Grade | 4 Door
View related parts
Hyundai Sonata CANISTER Assembly
Part Number: 31410-36100
$97.61 MSRP: $133.98
You Save: $36.37 (28%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 1988-1993 Hyundai Sonata | High Grade, Middle Grade | 4 Door
View related parts
Hyundai Sonata CANISTER Assembly
Part Number: 31420-C2600
$265.51 MSRP: $373.03
You Save: $107.52 (29%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Vapor Canister
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 2015-2017 Hyundai Sonata | DOHC - TCI/GDI | Sedan - 4Door 5P
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Hyundai Sonata CANISTER Assembly
Part Number: 31400-L0000
$330.11 MSRP: $463.79
You Save: $133.68 (29%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Vapor Canister
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 2020-2023 Hyundai Sonata | DOHC - GDI, DOHC - TCI/GDI | Sedan - 4Door 5P
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Hyundai Sonata CANISTER Assembly
Part Number: 31410-3Q500
$411.46 MSRP: $573.10
You Save: $161.64 (29%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 2009-2014 Hyundai Sonata | DOHC - GDI | Sedan - 4Door 5P
View related parts
Hyundai Sonata CANISTER Assembly
Part Number: 31410-3Q600
$475.88 MSRP: $662.82
You Save: $186.94 (29%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 2009-2014 Hyundai Sonata | DOHC - GDI, DOHC - TCI/GDI | Sedan - 4Door 5P
View related parts
Hyundai Sonata CANISTER Assembly
Part Number: 31410-33500
Product Specifications
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 1988-1993 Hyundai Sonata | High Grade, Middle Grade | 4 Door

Hyundai Sonata Vapor Canister

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Hyundai Sonata Vapor Canister Parts Questions & Experts Answers

CANISTER Assembly
31420-3K600
Q: How Does the EVAP System Operate, and What Are the Procedures for Replacing Canister Purge Valve,Vapor Canister and Vapor Pressure Sensor on Hyundai Sonata?
A: The Evaporative Emissions Control (EVAP) system is designed to absorb fuel vapors, releasing them into the intake manifold during engine operation, where they mix with the air-fuel mixture. Key components include the fuel tank filler neck cap, EVAP canister, vapor pressure sensor, canister closed valve, two-way valve, and purge valve, with all but the purge valve located underneath the vehicle. When gasoline evaporates due to heat, it increases pressure in the sealed fuel tank, which is monitored by the vapor pressure sensor that informs the Powertrain Control Module (PCM). The vapors flow into the canister through a two-way valve and are purged into the intake manifold when the PCM activates the purge control solenoid valve. The canister purge control solenoid valve, located in the engine compartment, regulates vapor flow based on PCM commands to prevent a rich air-fuel mixture. During purging, atmospheric air is drawn into the canister to maintain pressure balance, with the canister closed valve controlling this process. The EVAP system diagnostic monitor checks for leaks by running a sequence that involves starting the engine and monitoring temperatures and pressures. If a leak is detected, the Malfunction Indicator Light (MIL) activates, and a Diagnostic Trouble Code (DTC) is stored. The PCM also monitors the canister closed valve and pressure switching valve to ensure proper operation, repeating the monitoring sequence as long as the engine is in closed loop. For replacement, the purge control solenoid valve requires disconnecting the negative battery terminal, removing the engine cover, and detaching the electrical connector and vacuum hoses before installation. Other components, such as the two-way valve, EVAP canister, vapor pressure sensor, and canister closed valve, also involve similar disconnection and reconnection procedures for replacement.