Where is the PCV valve located and how do you remove and install it on Mazda 3?

In order to get the timing cover and timing belt off, begin by removing the sprocket on the camshaft. The second step is to loosen the bolts and loosen the gasket seal with a screwdriver before detaching the cover and the cylinder head. Installation To be installed, the mating surfaces of the gasket material should be cleaned. Install the retaining bolts with a new gasket and screw the housing cover with the gasket making sure to tighten the screw to the recommended torque. Installation Complete the steps of removal in reverse.

Genuine Mazda 3 PCV Valve

Position Crank Ventilation Valve

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5 PCV Valves found

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Mazda 3 PCV Valve Part Number: PY01-13-890
$15.53 MSRP: $20.70
You Save: $5.17 (25%)
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Product Specifications
- Other Name: Valve, P.C.V.
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2014-2023 Mazda 3 | 2.5 S, 2.5 Turbo, 2.5 Turbo Premium Plus, Base, Carbon Edition, Grand Touring, Preferred, Premium, s Grand Touring, s Touring, Select, Touring | 4 Cyl 2.5 L GAS
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Mazda 3 PCV Valve Part Number: L356-13-890
$18.89 MSRP: $25.19
You Save: $6.30 (26%)
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Product Specifications
- Other Name: Valve, P.C.V.
- Replaces: 1F70-13-890, ZZC0-13-890
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2010-2013 Mazda 3 | S | 4 Cyl 2.5 L GAS
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Mazda 3 PCV Valve Part Number: L3K9-13-890
$23.30 MSRP: $31.07
You Save: $7.77 (26%)
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Product Specifications
- Other Name: Valve, P.C.V.
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2007-2013 Mazda 3 | Mazdaspeed, S | 4 Cyl 2.3 L GAS
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Mazda 3 PCV Valve Part Number: PE01-13-890
$14.64 MSRP: $19.51
You Save: $4.87 (25%)
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Product Specifications
- Other Name: Valve, P.C.V.
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2021-2022, 2012-2018 Mazda 3 | 2.0, i, i Grand Touring, I Sport, i SV, I Touring, Sport, Touring | 4 Cyl 2.0 L GAS
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Mazda 3 PCV Valve Part Number: L325-13-890A
$17.20 MSRP: $22.93
You Save: $5.73 (25%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Valve, P.C.V.
- Replaces: LF13-13-890
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2004-2013 Mazda 3 | i, Mazdaspeed, S, SP23 | 4 Cyl 2.0 L GAS, 4 Cyl 2.3 L GAS

Mazda 3 PCV Valve

The Mazda 3 PCV Valve keeps the engine clean and keeps the air cleaner by not letting crankcase gases escape into the air but rather through the cylinders. With the help of intake manifold vacuum, the PCV Valve limits the flow when the throttle is barely open and then opens wider when the throttle revs up, so blow-by vapors burn fully without leaning the mixture and sludge does not accumulate inside it. It is also a flame arrestor which prevents reverse pulses that may appear during turbo boost or a backfire and protects the crankcase against damaging pressure spikes. The PCV Valves for early Mazda engines were made with a rather simple spring-loaded design, and the newer turbo versions have the same basic housing but with a heavier spring and internal baffle to absorb the added boost, yet both models still use the same simple one-way check action. Whatever model year 3 you drive, all Mazda units place the fresh-air breather opposite the crankcase to allow the vapors to sweep over the entire crankcase, thereby enhancing the seal of the rings and even providing some power boost. This component does not demand much of an owner, as shaking and replacement in case of sticky movement during routine maintenance checks are sufficient to avoid efficiency loss, oil contamination, and rough idle. The PCV Valve ensures the smooth running of Mazda engines and minimizes emissions of toxins and other undesirable behaviors such as the foaming of oil, which would eventually reduce the life of parts.

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Mazda 3 PCV Valve Parts and Q&A

PCV Valve
L3K9-13-890
Q: Where is the PCV valve located and how do you remove and install it on Mazda 3?
A:
In order to get the timing cover and timing belt off, begin by removing the sprocket on the camshaft. The second step is to loosen the bolts and loosen the gasket seal with a screwdriver before detaching the cover and the cylinder head. Installation To be installed, the mating surfaces of the gasket material should be cleaned. Install the retaining bolts with a new gasket and screw the housing cover with the gasket making sure to tighten the screw to the recommended torque. Installation Complete the steps of removal in reverse.