What are the essential inspections for pcv hose,rubber and plastic hoses in the engine, accessory, and emission systems on Mercury Grand Marquis?

To prevent damage from high temperatures, all rubber and plastic hoses in the engine, accessory, and emission systems should be regularly inspected. When doing inspections, it is important to check for cracks, loose clamps, material hardening as well as leaks. Clamps must be tight enough not to leak anything. Hoses without clamps need an examination because they can expand or harden causing a leak. PCV system hose should be checked for such things like cracks, leaks, obstructions then cleaned if there is any blockage. Vacuum hoses should be labeled before removing them. A vacuum hose is going to help you determine where the air is leaking from. Deterioration chaffing and cracking are defects of flexible fuel lines that have to be detected. Fuel hoses designed for your system should be used here. Spring-type clamps require replacements with screw clamps instead. The bends at metal fuel lines contain creases or fractures which normally lead to their breaking off hence use seamless steel tubing for replacements where possible.

Genuine Mercury Grand Marquis PCV Hose

PCV Valve Hose

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17 PCV Hoses found

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Mercury Grand Marquis Vent Hose
Part Number: 7W7Z-6A664-AA
$26.45 MSRP: $38.67
You Save: $12.22 (32%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Hose - Vent
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2007-2011 Mercury Grand Marquis | 8 Cyl 4.6L Romeo SOHC EFI | 4-Speed Automatic Transmission 4R75E Livonia, Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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Mercury Grand Marquis Vent Hose
Part Number: 5W7Z-6A664-AA
$27.02 MSRP: $39.50
You Save: $12.48 (32%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Hose - Vent
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005-2006 Mercury Grand Marquis | 8 Cyl 4.6L | 4AT 4R70W
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Mercury Grand Marquis Connector
Part Number: F8AZ-6C324-BA
$18.46 MSRP: $20.83
You Save: $2.37 (12%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1998-2003 Mercury Grand Marquis | 8 Cyl 4.6L | 4AT 4R70W
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Mercury Grand Marquis Vent Hose
Part Number: 3W3Z-6758-BA
$25.74 MSRP: $36.67
You Save: $10.93 (30%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Hose - Vent
- Manufacturer Note: Hose from PCV to intake, 4v (Maurader)
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2003-2004 Mercury Grand Marquis | 8 Cyl 4.6L | 4AT 4R70W
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Mercury Grand Marquis Tube Assembly
Part Number: 5W7Z-6758-BA
$34.92 MSRP: $50.17
You Save: $15.25 (31%)
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Product Specifications
- Other Name: Tube Assy; PCV Hose, PCV Tube
- Manufacturer Note: 4V
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005-2011 Mercury Grand Marquis | 8 Cyl 4.6L, 8 Cyl 4.6L Romeo SOHC EFI | 4AT 4R70W, 4-Speed Automatic Transmission 4R75E Livonia, Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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Mercury Grand Marquis Connector
Part Number: 3W3Z-6C324-AA
$0.00
Product Specifications
- Manufacturer Note: Includes 6A666 PCV, Tubes & Connector hoses., 4v Maurader
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2003-2004 Mercury Grand Marquis | 8 Cyl 4.6L | 4AT 4R70W
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Mercury Grand Marquis Connector
Part Number: F1AZ-6C324-A
$23.28 MSRP: $33.17
You Save: $9.89 (30%)
Product Specifications
- Manufacturer Note: Incl.6A666 PCV,6B899 Tee,Tubes & Connector hoses.
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1992-1994 Mercury Grand Marquis | 8 Cyl 4.6L | 4AT, 4AT AOD, 4AT AODE
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Mercury Grand Marquis Tube Assembly
Part Number: 3W3Z-6758-BB
Product Specifications
- Other Name: Tube Assy
- Manufacturer Note: Hose from air inlet tube to engine, 4v (Maurader)
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2003-2004 Mercury Grand Marquis | 8 Cyl 4.6L | 4AT 4R70W
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Mercury Grand Marquis Vent Hose
Part Number: 3W7Z-6853-AA
Product Specifications
- Other Name: Hose - Vent
- Position: Driver Side
- Replaced by: 3W7Z-6853-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2003-2006 Mercury Grand Marquis | 8 Cyl 4.6L | 4AT 4R70W
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Mercury Grand Marquis Vent Hose
Part Number: F8VZ-6853-AA
$0.00
Product Specifications
- Other Name: Hose - Vent; Hose
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1998-2002 Mercury Grand Marquis | 8 Cyl 4.6L | 4AT 4R70W
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Mercury Grand Marquis Tube Assembly
Part Number: 3W7Z-6758-AA
$26.09 MSRP: $37.17
You Save: $11.08 (30%)
Product Specifications
- Other Name: Tube Assy
- Manufacturer Note: Connects air cleaner tube to LH valve cover.
- Replaced by: 3W7Z-6758-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2003-2004 Mercury Grand Marquis | 8 Cyl 4.6L | 4AT 4R70W
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Mercury Grand Marquis Hose Connecting
Part Number: C9PZ6A664A
Product Specifications
- Other Name: Hose - Connecting
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1980-1989 Mercury Grand Marquis | 8 Cyl 4.2L, 8 Cyl 5.0L, 8 Cyl 5.8L | 3AT, 3AT C4, 3AT C6, 4AT AOD
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Mercury Grand Marquis Hose Connecting
Part Number: C9PZ6A664B
Product Specifications
- Other Name: Hose - Connecting
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1980-1989 Mercury Grand Marquis | 8 Cyl 4.2L, 8 Cyl 5.0L, 8 Cyl 5.8L | 3AT, 3AT C4, 3AT C6, 4AT AOD
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Mercury Grand Marquis Hose Connecting
Part Number: D3PZ6A664A
Product Specifications
- Other Name: Hose - Connecting
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1980-1989 Mercury Grand Marquis | 8 Cyl 4.2L, 8 Cyl 5.0L, 8 Cyl 5.8L | 3AT, 3AT C4, 3AT C6, 4AT AOD
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Mercury Grand Marquis Tube Assembly
Part Number: E2AZ6853A
Product Specifications
- Other Name: Tube Assy
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1982-1986 Mercury Grand Marquis | 8 Cyl 4.2L, 8 Cyl 5.0L, 8 Cyl 5.8L | 4AT AOD
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Mercury Grand Marquis Crankcase Ventilation Tube
Part Number: E7ZZ-6N664-A
Product Specifications
- Other Name: Tube - Crankcase Ventilation
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1987-1991 Mercury Grand Marquis | 8 Cyl 5.0L | 4AT AOD
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Mercury Grand Marquis Connector
Part Number: F5AZ-6C324-A
Product Specifications
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1995-1997 Mercury Grand Marquis | 8 Cyl 4.6L | 4AT, 4AT 4R70W, 4AT AODE

Mercury Grand Marquis PCV Hose Parts Questions & Experts Answers

Vent Hose
7W7Z-6A664-AA
Q: What are the essential inspections for pcv hose,rubber and plastic hoses in the engine, accessory, and emission systems on Mercury Grand Marquis?
A: To prevent damage from high temperatures, all rubber and plastic hoses in the engine, accessory, and emission systems should be regularly inspected. When doing inspections, it is important to check for cracks, loose clamps, material hardening as well as leaks. Clamps must be tight enough not to leak anything. Hoses without clamps need an examination because they can expand or harden causing a leak. PCV system hose should be checked for such things like cracks, leaks, obstructions then cleaned if there is any blockage. Vacuum hoses should be labeled before removing them. A vacuum hose is going to help you determine where the air is leaking from. Deterioration chaffing and cracking are defects of flexible fuel lines that have to be detected. Fuel hoses designed for your system should be used here. Spring-type clamps require replacements with screw clamps instead. The bends at metal fuel lines contain creases or fractures which normally lead to their breaking off hence use seamless steel tubing for replacements where possible.