How to Service the PCV Valve on 2009 Mercury Grand Marquis?

Service of the Positive Crankcase Ventilation (PCV) valve begins with disconnecting the PCV valve electrical connector when present. Start the process by disconnecting the crankcase ventilation tube from the quick connect coupling of the PCV valve then placing it to the side. The service operation requires replacing the PCV valve because shearing the plastic retaining ears happens during removal. Discard the old PCV valve after rotating it counterclockwise. To properly connect the wiring harness during the new PCV valve installation ensure the electrical connector faces correctly because improper setup will lead to additional replacement work. The new PCV valve installation ends with a return to the removal process steps.

OEM 2009 Mercury Grand Marquis PCV Valve

Position Crank Ventilation Valve

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2 PCV Valves found

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2009 Mercury Grand Marquis PCV Valve
Part Number: 7L3Z-6A666-A
$21.49 MSRP: $34.13
You Save: $12.64 (38%)
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Product Specifications
- Other Name: Valve Assembly; Crankcase Vent Valve
- Manufacturer Note: Valve Only
- Base No.: 6A666
- Item Weight: 0.30 Pounds
- Item Dimensions: 6.2 x 4.1 x 4.1 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 7L3Z-6A666-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
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Fits the following 2009 Mercury Grand Marquis Submodels:
- GS, LS | 8 Cyl 4.6 L GAS
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2009 Mercury Grand Marquis PCV Valve
Part Number: 6W7Z-6A666-AA
$66.39 MSRP: $109.24
You Save: $42.85 (40%)
Ships in 1 Business Day
ADD TO CART
Product Specifications
- Other Name: Valve Assembly; Crankcase Vent Valve
- Base No.: 6A666
- Item Weight: 0.30 Pounds
- Item Dimensions: 6.3 x 4.0 x 4.2 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 6W7Z-6A666-AA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
More Info
Fits the following 2009 Mercury Grand Marquis Submodels:
- GS, LS | 8 Cyl 4.6 L GAS

2009 Mercury Grand Marquis PCV Valve

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2009 Mercury Grand Marquis PCV Valve Parts Questions & Experts Answers

Q: How to Service the PCV Valve on 2009 Mercury Grand Marquis?
A: Service of the Positive Crankcase Ventilation (PCV) valve begins with disconnecting the PCV valve electrical connector when present. Start the process by disconnecting the crankcase ventilation tube from the quick connect coupling of the PCV valve then placing it to the side. The service operation requires replacing the PCV valve because shearing the plastic retaining ears happens during removal. Discard the old PCV valve after rotating it counterclockwise. To properly connect the wiring harness during the new PCV valve installation ensure the electrical connector faces correctly because improper setup will lead to additional replacement work. The new PCV valve installation ends with a return to the removal process steps.