What is the purpose of the Positive Crankcase Ventilation (PCV) system and PCV Valve on Lincoln Navigator?

The Positive Crankcase Ventilation (PCV) system reduces hydrocarbon emissions by circulating fresh air from the air cleaner, mixing with blow-by gases, and rerouting through a PCV valve. The PCV system consists of a PCV valve, a fresh air-filtered inlet, and vacuum hoses, and the PCV valve is meant to restrict flow to maintain idle quality. On 2005 and later Expedition/Navigator models, an electric heating element is added to the PCV system.

How to check the PCV Valve on Lincoln Navigator?

To sustain the efficient operation of a PCV system, it must be kept clean and its hoses checked according to the maintenance schedule. First, start the engine then disconnect the PCV valve from the intake manifold and check for vacuum. You will feel a vacuum if it is working properly. If there isn't any vacuum remove the hose to see if there is one inside it. Replace the valve if the hose has suction but not the valve itself. Find out whether a hose is blocked or broken by checking for suction at its ends. Inspect the grommet for damage and replace it as necessary. Clean and inspect the hose ensuring a snug fit. Install a new PVC valve as may be necessary.

Genuine Lincoln Navigator PCV Valve

Position Crank Ventilation Valve

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5 PCV Valves found

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Lincoln Navigator Valve Assembly
Part Number: AA5Z-6A666-D
$6.27 MSRP: $12.02
You Save: $5.75 (48%)
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Product Specifications
- Other Name: Valve Assy
- Replaced by: KR3Z-6A666-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2015-2019 Lincoln Navigator | 6 Cyl 3.5L GTDI | 10-Speed Automatic Transmission (10R80), 4-Speed Automatic Transmission E4OD(4R100), 6-Speed Automatic Transmission (6R80), 6-Speed Automatic Transmission ZF 6HP26 Steptronic, Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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Lincoln Navigator Valve Assembly
Part Number: YC3Z-6A666-CA
$29.64 MSRP: $47.27
You Save: $17.63 (38%)
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Product Specifications
- Other Name: Valve Assy; PCV Valve
- Replaces: YC3Z-6A666-BB
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2003-2004 Lincoln Navigator | 8 Cyl 5.4L DOHC EFI | 4-Speed Automatic Transmission E4OD(4R100), 6-Speed Automatic Transmission (6R80), 6-Speed Automatic Transmission ZF 6HP26 Steptronic, Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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Lincoln Navigator Kit - Crankcase Ventilation Valve
Part Number: YC2Z-6K773-AA
$41.04 MSRP: $60.00
You Save: $18.96 (32%)
ADD TO CART
Product Specifications
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2003-2004 Lincoln Navigator | 8 Cyl 5.4L DOHC EFI | 4-Speed Automatic Transmission E4OD(4R100), 6-Speed Automatic Transmission (6R80), 6-Speed Automatic Transmission ZF 6HP26 Steptronic, Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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Lincoln Navigator VALVE ASY
Part Number: KR3Z-6A666-A
$6.27 MSRP: $12.02
You Save: $5.75 (48%)
Ships in 1 Business Day
ADD TO CART
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:
- 2015-2024 Lincoln Navigator | 6 Cyl 3.5 L GAS, 6 Cyl 3.5L GTDI | 10-Speed Automatic Transmission (10R80), 4-Speed Automatic Transmission E4OD(4R100), 6-Speed Automatic Transmission (6R80), 6-Speed Automatic Transmission ZF 6HP26 Steptronic, Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
View related parts
Lincoln Navigator Valve Assembly
Part Number: F75Z-6A666-BA
Product Specifications
- Other Name: Valve Assy; PCV Valve
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1998 Lincoln Navigator | 8 Cyl 5.4L | 4AT 4R100, 4AT E4OD

Lincoln Navigator PCV Valve

The PCV Valve in Lincoln Navigator cars is a core part that is useful in regulating emission and optimizing the performance of the engine. The PCV Valve stops the pollution to the environment and formation of abrasive oil sludge damaging the engine by recycling the combustion byproduct gases from the crankcase back into the engine's combustion chambers. Depending on the intake manifold vacuum conditions at various idle and load situations, the PCV Valve limits the gas flow thereby preventing lean operations of the engine while on the other hand, enabling more blow-by gases at instances with high RPMs or full load. Besides, the PCV Valve assists in the prevention of flame penetration, as well as plays a crucial role of ensuring appropriate crankcase ventilation. PCV Valve requires periodic servicing to eliminate problems like fouling of the engine oil, oil seeping, and wasteful fuel consumption which call for repairs.

We provide a wide range of Lincoln Navigator PCV Valve at the best prices possible. If you need Lincoln Navigator 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.

Lincoln Navigator PCV Valve Parts Questions & Experts Answers

Valve Assembly
F75Z-6A666-BA
Q: What is the purpose of the Positive Crankcase Ventilation (PCV) system and PCV Valve on Lincoln Navigator?
A: The Positive Crankcase Ventilation (PCV) system reduces hydrocarbon emissions by circulating fresh air from the air cleaner, mixing with blow-by gases, and rerouting through a PCV valve. The PCV system consists of a PCV valve, a fresh air-filtered inlet, and vacuum hoses, and the PCV valve is meant to restrict flow to maintain idle quality. On 2005 and later Expedition/Navigator models, an electric heating element is added to the PCV system.
Kit - Crankcase Ventilation Valve
YC2Z-6K773-AA
Q: How to check the PCV Valve on Lincoln Navigator?
A: To sustain the efficient operation of a PCV system, it must be kept clean and its hoses checked according to the maintenance schedule. First, start the engine then disconnect the PCV valve from the intake manifold and check for vacuum. You will feel a vacuum if it is working properly. If there isn't any vacuum remove the hose to see if there is one inside it. Replace the valve if the hose has suction but not the valve itself. Find out whether a hose is blocked or broken by checking for suction at its ends. Inspect the grommet for damage and replace it as necessary. Clean and inspect the hose ensuring a snug fit. Install a new PVC valve as may be necessary.