Mercury Mariner Positive Crankcase Ventilation (PCV) Valve Replacement at your home or office.

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Positive Crankcase Ventilation (PCV) Valve Replacement Service

How much does a Positive Crankcase Ventilation (PCV) Valve Replacement cost?

On average, the cost for a Mercury Mariner Positive Crankcase Ventilation (PCV) Valve Replacement is $104 with $9 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2010 Mercury MarinerL4-2.5LService typePositive Crankcase Ventilation (PCV) Valve ReplacementEstimate$473.23Shop/Dealer Price$525.92 - $605.24
2007 Mercury MarinerL4-2.3L HybridService typePositive Crankcase Ventilation (PCV) Valve ReplacementEstimate$329.83Shop/Dealer Price$373.85 - $442.79
2006 Mercury MarinerL4-2.3L HybridService typePositive Crankcase Ventilation (PCV) Valve ReplacementEstimate$329.83Shop/Dealer Price$373.85 - $442.78
2008 Mercury MarinerV6-3.0LService typePositive Crankcase Ventilation (PCV) Valve ReplacementEstimate$155.47Shop/Dealer Price$180.59 - $233.44
2005 Mercury MarinerL4-2.3LService typePositive Crankcase Ventilation (PCV) Valve ReplacementEstimate$302.91Shop/Dealer Price$340.24 - $389.02
2010 Mercury MarinerL4-2.5L HybridService typePositive Crankcase Ventilation (PCV) Valve ReplacementEstimate$422.22Shop/Dealer Price$476.98 - $557.85
2011 Mercury MarinerL4-2.5LService typePositive Crankcase Ventilation (PCV) Valve ReplacementEstimate$420.73Shop/Dealer Price$473.00 - $552.01
2008 Mercury MarinerL4-2.3LService typePositive Crankcase Ventilation (PCV) Valve ReplacementEstimate$413.83Shop/Dealer Price$465.68 - $540.49
Show example Mercury Mariner Positive Crankcase Ventilation (PCV) Valve Replacement prices

What is the Positive Crankcase Ventilation (PCV) Valve all about?

The PCV Valve transfers gasses from inside the crankcase to the intake manifold where they are burned as part of the normal combustion process. Excess fumes are burned by the engine, rather than released into the atmosphere.

Keep in mind:

PCV valve failure can be caused by other engine problems. To ensure that this is not the case, a mechanic should test your engine after replacing the PCV valve, to make sure that the car runs well and doesn’t have other issues.

How it's done:

  • Disconnect the vacuum hose.
  • Remove and replace the PCV valve.
  • Replace PCV hose if appropriate.
  • Install vacuum hose.

Our recommendation:

In general, it is a good practice to replace the PCV valve during every major tune-up. Changing the engine oil and flushing the engine on a regular basis will prevent sludge build-up inside the oil pan that may cause the PCV valve to fail.

What common symptoms indicate you may need to replace the Positive Crankcase Ventilation (PCV) Valve?

  • Leaks in the engine compartment.
  • Leaks underneath the car.
  • A hissing noise from the engine.
  • Car runs poorly.

How important is this service?

As excess gas accumulates in your crankcase, the PCV valve redirects it through the intake manifold, where they are used as a normal part of your engine’s process. When the PCV valve fails, your engine won’t redirect this excess gas that it depends on. As such your vehicle will not run smoothly, and it will likely get much worse gas mileage.

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Excellent Rating

(157)

Rating Summary
148
7
1
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148
7
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Chris

22 years of experience
2223 reviews
Chris
22 years of experience
Mercury Mariner L4-2.5L - Check Engine Light is on Inspection - Irvine, California
Very thorough and good at explaining what you can do to yourself to make minor improvements.

Breck

20 years of experience
681 reviews
Breck
20 years of experience
Mercury Mariner V6-3.0L - Brake Pads Replacement (Front) - Houston, Texas
He came early and completed my repairs with a smile.

Jerimiah

19 years of experience
328 reviews
Jerimiah
19 years of experience
Mercury Mariner V6-3.0L - Tune-up - Las Vegas, Nevada
Extremely professional and friendly. He was on time and explained my car health wonderfully. He was very fast too.

Justin

16 years of experience
88 reviews
Justin
16 years of experience
Mercury Mariner V6-3.0L - Ball Joint Front Replacement (Lower Left, Lower Right) - Rocklin, California
Justin was prompt, knowledgeable, and efficient.

Excellent Rating

(157)

Rating Summary
148
7
1
0
1
148
7
1
0
1
Number of Mercury Mariner services completed
1727+
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