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Genuine Mercury Mariner PCV Hose
PCV Valve Hose- Select Vehicle by Model
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13 PCV Hoses found
Mercury Mariner Vent Hose
Part Number: 8L8Z-6A664-A$20.62 MSRP: $30.62You Save: $10.00 (33%)Ships in 1-2 Business Days
Mercury Mariner Vent Hose
Part Number: 4L8Z-6A664-BA$20.62 MSRP: $30.62You Save: $10.00 (33%)Ships in 1-2 Business Days
Mercury Mariner Tube Assembly
Part Number: 3S4Z-6758-AA$35.61 MSRP: $51.17You Save: $15.56 (31%)Ships in 1-3 Business Days
Mercury Mariner PCV Hose
The Mercury Mariner PCV Hose is an important tube that redirects engine vapors back into the engine so the SUV can keep emissions low and fuel economy steady. The PCV Hose is situated between the valve cover and spring-loaded PCV valve and routes pressurized gases to the intake to burn rather than releasing them into the atmosphere. Through the years, Mercury offered two different placement styles on the Mariner. One came routed on the driver side while the other came on the passenger side. However, both perform the same task of venting crankcase pressure and both protect the correct air fuel balance. In subsequent model years, Mercury maintained the same diameter and material, meaning it is easy to swap a hose between generations of Mariners. Each PCV Hose is specific to its location and direct fit designs clip into current clamps, making for an easier swap and lower risk of vacuum leaks. A cracked PCV Hose can skew mixture ratios, trigger rough running, and hike emissions. Timely replacement restores smooth idle and mileage. An inexpensive part, having a new PCV Hose in any Mercury Mariner is a smart preventive measure that will help keep the engine and the planet healthy.
We provide a wide range of Mercury Mariner PCV Hose at the optimal prices. If you need Mercury Mariner PCV Hose, you can shop with confidence on our website. All our OEM parts come with a manufacturer's warranty and are delivered to your doorstep with a fast delivery service.
Mercury Mariner PCV Hose Parts Questions & Experts Answers
- Q: What is the function and maintenance of the Positive Crankcase Ventilation system,PCV Hose and PCV Valve on Mercury Mariner?A:The Positive Crankcase Ventilation (PCV) system minimises hydrocarbon emissions by drawing a fresh air through the air cleaner, passing it through the crank case, mixing it with blow-by gases, taking it to a PCV valve where intake manifold vacuum is used to draw the vapors in. The make up of this system entails the fresh air inlet hose, the PCV valve and the PCV hose connecting this valve to the intake manifold while to ensure that oil does not get into the valve, there is a crankcase vent oil separator. Fresh-air inlet hose and PCV hose should be periodically checked for signs of damages; blockages or failures should be compensated by a new hose rather than by simple washing. On the four-cylinder models, fresh air inlet hose is between the air intake duct and crankcase and should be disconnected and checked for sign of wear and tear, while PCV hose should also be checked for leakage. The crankcase vent oil separator is located behind the exhaust manifold and can only be accessed by removing the Catalytic Converter and the exhaust manifold, then detaching the PCV hose and cleaning the separator. V6 models have an additional fresh air inlet hose that connects to both the front and rear valve covers and the hoses especially the PCV hose should be well directed when removing and fixing. The PCV valve, which may need different procedure for the models after 2004, should be replaced if it has been removed; the crankcase vent oil separator needs removal of the intake manifold and front cylinder head for accessing it in early models, with the cleaning of the area and Ensure that the gaskets and bolts are clean and are put back correctly.
