How Does the PCV System Work, and What Maintenance is Recommended for PCV Hose and PCV Valve on Hyundai Sonata?

The Positive Crankcase Ventilation (PCV) system leads blow-by gases and crankcase vapors into the intake manifold allowing them to mix with intake air then to be sucked into the combustion chamber and burned together air/fuel mixture. This system fresh air from the air filter housing is channeled through hoses into the crankcase, where the fresh air gets to mix with the blow-by gases before the intake vacuum sucks it through the PCV valve and into the intake manifold. High intake manifold vacuum under idle and part-throttle helps draw blow-by gases and crankcase emulsion vapor via the PCV valve and through the crankcase ventilation hose into the intake manifold while at the same time drawing fresh air through the air intake duct or air filter housing into the crankcase. While, there is no specific timing for checking free the PCV valve or the hoses, the system slowly becomes less efficient because of oily sludge deposits and crankcase pressure build-up, which leading to symptoms like leaking engine seals. PCV hoses should be checked during such maintenance activities as the change of the oil filter, air filter, fuel filter, or spark plug; where dirty, the hoses should be washed; where cracked or deteriorated, the hoses should be renewed. On all models, the PCV valve is fastened to the valve cover; it should also be checked and replaced, when needed.

Genuine Hyundai Sonata PCV Valve

Position Crank Ventilation Valve

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8 PCV Valves found

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Hyundai Sonata Valve-PCV
Part Number: 26740-2G000
$24.60 MSRP: $31.78
You Save: $7.18 (23%)
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Product Specifications
- Other Name: Valve-Proportioning Control Valve; PCV Valve, Purge Solenoid
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 2007-2019 Hyundai Sonata | DOHC - GDI, DOHC - MPI, DOHC - TCI/GDI | Sedan - 4Door 5P
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Hyundai Sonata Valve-PCV
Part Number: 26740-32804
$26.46 MSRP: $36.85
You Save: $10.39 (29%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Valve-Proportioning Control Valve; PCV Valve
- Replaces: 26740-32800
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 2015-2019 Hyundai Sonata | DOHC - TCI/GDI | Sedan - 4Door 5P
- 2001-2007 Hyundai Sonata | High Grade, Middle Grade | DOHC - MPI | 4 Door Sedan, Sedan - 4Door 5P
- 1988-1998 Hyundai Sonata | High Grade, Middle Grade | 4 Door
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Hyundai Sonata Valve-PCV
Part Number: 26740-2G600
$27.63 MSRP: $38.48
You Save: $10.85 (29%)
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Product Specifications
- Other Name: Valve-Proportioning Control Valve; PCV Valve
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 2007-2014 Hyundai Sonata | DOHC - GDI, DOHC - MPI, DOHC - TCI/GDI | Sedan - 4Door 5P
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Hyundai Sonata Valve-PCV
Part Number: 26740-3C200
$26.46 MSRP: $36.85
You Save: $10.39 (29%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Valve-Proportioning Control Valve; PCV Valve
- 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 Valve-PCV
Part Number: 26740-35504
$21.60 MSRP: $27.92
You Save: $6.32 (23%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Valve-Proportioning Control Valve; PCV Valve
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 1998-2001 Hyundai Sonata | High Grade, Middle Grade | 4 Door
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Hyundai Sonata Valve-PCV
Part Number: 26740-35004
$20.08 MSRP: $25.95
You Save: $5.87 (23%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Valve-Proportioning Control Valve; PCV Valve
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 1988-1998 Hyundai Sonata | High Grade, Middle Grade | 4 Door
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Hyundai Sonata Valve-PCV
Part Number: 26740-2M000
$81.93 MSRP: $115.12
You Save: $33.19 (29%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: PCV Valve
- Warranty: This genuine part is guaranteed by Hyundai's factory warranty.
Fits the following Vehicles:
- 2023 Hyundai Sonata | DOHC - TCI/GDI | Sedan - 4Door 5P
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Hyundai Sonata Valve-PCV
Part Number: 26740-38000
Product Specifications
- Other Name: Valve-Proportioning Control Valve; PCV Valve
- 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

Hyundai Sonata PCV Valve

The Hyundai Sonata PCV Valve clears the crankcase vapors and sends the vapors back to the cylinders for a cleaner engine and lower emissions. Using intake manifold vacuum, the PCV Valve meters flow, nearly closing when idle vacuum is high to prevent a lean mix. The PCV Valve opens wider under throttle when blow-by gases rise, which helps prevent oil from turning to sludge and boosts overall efficiency. A healthy PCV Valve acts as a flame arrester, preventing pressure spikes from reaching the crankcase and disturbing the vital seals. Throughout the years, Hyundai has maintained the consistent theme for every Sonata. Further, Hyundai has reused the same lightweight one-way PCV Valve. Rather than branching into radically different styles, differences are limited to fitment angles and hose sizes while the internal mechanism and purpose remain identical. Older editions of Sonata show that the same approach already worked. Regular checks will keep the PCV Valve from sticking. This allows drivers to benefit from steadier compression, smoother power delivery, and fewer harmful fumes. A small and inexpensive component can do so much to keep every Hyundai Sonata engine healthy.

If you are looking for affordable high-quality OEM Hyundai Sonata PCV Valve, then you have come to the prime place. Our website provides a large amount of genuine Hyundai Sonata PCV Valve at unbeatable prices. All our parts come backed with the manufacturer's warranty.

Hyundai Sonata PCV Valve Parts Questions & Experts Answers

Valve-PCV
26740-32804
Q: How Does the PCV System Work, and What Maintenance is Recommended for PCV Hose and PCV Valve on Hyundai Sonata?
A:
The Positive Crankcase Ventilation (PCV) system leads blow-by gases and crankcase vapors into the intake manifold allowing them to mix with intake air then to be sucked into the combustion chamber and burned together air/fuel mixture. This system fresh air from the air filter housing is channeled through hoses into the crankcase, where the fresh air gets to mix with the blow-by gases before the intake vacuum sucks it through the PCV valve and into the intake manifold. High intake manifold vacuum under idle and part-throttle helps draw blow-by gases and crankcase emulsion vapor via the PCV valve and through the crankcase ventilation hose into the intake manifold while at the same time drawing fresh air through the air intake duct or air filter housing into the crankcase. While, there is no specific timing for checking free the PCV valve or the hoses, the system slowly becomes less efficient because of oily sludge deposits and crankcase pressure build-up, which leading to symptoms like leaking engine seals. PCV hoses should be checked during such maintenance activities as the change of the oil filter, air filter, fuel filter, or spark plug; where dirty, the hoses should be washed; where cracked or deteriorated, the hoses should be renewed. On all models, the PCV valve is fastened to the valve cover; it should also be checked and replaced, when needed.