What is the purpose of the Positive Crankcase Ventilation (PCV) system and PCV Valve during engine operation on Ford Bronco?

An oil mist is created when the crankcase is agitated by oil during engine operation. Positive Crankcase Ventilation (PCV) relieves pressure by venting vapors and gases into the intake manifold for combustion. The PCV valve has a mode of ventilation that allows small quantities to pass through at stop and large volumes under a higher load. An air filter is used to provide clean air which goes to the valve cover or can be connected via a dedicated hose. Such PCV systems are always equipped with a PCV valve, situated in the intake manifold or on top of the cylinder head cover, joining the two inlet manifolds using a vacuum hose. The PCV valve ensures optimal engine performance and emission control by regulating airflow and gas flow into the intake manifold.

How to clean and check the PCV valve and hoses in a Ford Bronco?

To maintain efficient operation of the PCV system, clean hoses and check PCV valve and filter as specified in maintenance schedule. Check PCV valve rubber grommet for damage and replace if necessary. Shake valve to check for rattling, replace if clogged. Transfer elbow from original valve or soak new elbow in warm water before installation. Inspect hoses for blockage and remove and check PCV system filter. Replace filter if dirty. Reconnect hoses to system.

Genuine Ford Bronco PCV Valve

Position Crank Ventilation Valve

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5 PCV Valves found

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Ford Bronco VALVE ASY
Part Number: KR3Z-6A666-A
$6.27 MSRP: $12.02
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Product Specifications
- Other Name: PCV Valve
- Replaces: AA5Z-6A666-D, EV-290
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2021-2023 Ford Bronco | 6 Cyl 2.7 L GAS, 6 Cyl 3.0 L GAS
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Ford Bronco Valve Assembly
Part Number: D9OZ-6A666-A
Product Specifications
- Other Name: Valve Assy; PCV Valve
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1980-1996 Ford Bronco | 6 Cyl 4.9L, 8 Cyl 5.0L, 8 Cyl 5.8L | 3AT C6, 4AT A4LD, 4AT AOD, 4AT E4OD, 4MT, 5MT
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Ford Bronco Valve Assembly - Regulating
Part Number: E7TZ-6A666-A
Product Specifications
- Other Name: Valve Assy - Regulating; PCV Valve
- Manufacturer Note: *EV-140
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1987-1996 Ford Bronco | 6 Cyl 4.9L, 8 Cyl 5.0L, 8 Cyl 5.8L | 3AT C6, 4AT A4LD, 4AT AOD, 4AT E4OD, 4MT, 5MT
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Ford Bronco Valve Assembly
Part Number: D9ZZ-6A666-A
Product Specifications
- Other Name: Valve Assy; PCV Valve
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1982-1985 Ford Bronco | 6 Cyl 4.9L, 8 Cyl 5.0L, 8 Cyl 5.8L | 3AT C6, 4AT AOD, 4MT
- 1980 Ford Bronco | 6 Cyl 4.9L, 8 Cyl 5.0L, 8 Cyl 5.8L | 3AT C6, 4MT
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Ford Bronco Valve Assembly
Part Number: D8TZ-6A666-B
Product Specifications
- Other Name: Valve Assy
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1980-1981 Ford Bronco | 6 Cyl 4.9L, 8 Cyl 5.0L, 8 Cyl 5.8L | 3AT C6, 4MT

Ford Bronco PCV Valve

The PCV Valve is an essential control feature of emissions as well as the performance of the Ford Bronco vehicles' engines. Through returning these smokes produced in the crankcase back to the engine combustion chambers, the PCV Valve helps avoid pollution and, thus, oxidation of oil into sludge. It provides a low vacuum when the vehicle is running at idle but opens when the engine is running at high RPMs to effectively trap crankcase gases without any influence on its operations. Also, PCV Valve has an added advantage of the flame arrester as well as help enhance the compression of the car's engine. It is wise to regularly have the PCV Valve checked or replaced so that it does not cause major problems and so that you can enjoy the optimal performance from your car.

We provide a wide range of Ford Bronco PCV Valve at the best prices possible. If you need Ford Bronco PCV Valve, you can shop with confidence on our website. All our OEM parts come with a manufacturer's warranty and are delivered to your door step with a fast delivery service.

Ford Bronco PCV Valve Parts Questions & Experts Answers

Valve Assembly
D9ZZ-6A666-A
Q: What is the purpose of the Positive Crankcase Ventilation (PCV) system and PCV Valve during engine operation on Ford Bronco?
A: An oil mist is created when the crankcase is agitated by oil during engine operation. Positive Crankcase Ventilation (PCV) relieves pressure by venting vapors and gases into the intake manifold for combustion. The PCV valve has a mode of ventilation that allows small quantities to pass through at stop and large volumes under a higher load. An air filter is used to provide clean air which goes to the valve cover or can be connected via a dedicated hose. Such PCV systems are always equipped with a PCV valve, situated in the intake manifold or on top of the cylinder head cover, joining the two inlet manifolds using a vacuum hose. The PCV valve ensures optimal engine performance and emission control by regulating airflow and gas flow into the intake manifold.
Valve Assembly - Regulating
E7TZ-6A666-A
Q: How to clean and check the PCV valve and hoses in a Ford Bronco?
A: To maintain efficient operation of the PCV system, clean hoses and check PCV valve and filter as specified in maintenance schedule. Check PCV valve rubber grommet for damage and replace if necessary. Shake valve to check for rattling, replace if clogged. Transfer elbow from original valve or soak new elbow in warm water before installation. Inspect hoses for blockage and remove and check PCV system filter. Replace filter if dirty. Reconnect hoses to system.