Nissan Maxima Vent Oil Separator Replacement at your home or office.

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Vent Oil Separator Replacement Service

How much does a Vent Oil Separator Replacement cost?

On average, the cost for a Nissan Maxima Vent Oil Separator Replacement is $319 with $110 for parts and $209 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1995 Nissan MaximaV6-3.0LService typeVent Oil Separator ReplacementEstimate$473.96Shop/Dealer Price$551.21 - $733.44
1994 Nissan MaximaV6-3.0LService typeVent Oil Separator ReplacementEstimate$429.96Shop/Dealer Price$507.25 - $689.51
1992 Nissan MaximaV6-3.0LService typeVent Oil Separator ReplacementEstimate$429.96Shop/Dealer Price$507.24 - $689.51
1986 Nissan MaximaV6-3.0LService typeVent Oil Separator ReplacementEstimate$429.96Shop/Dealer Price$507.19 - $689.42
1999 Nissan MaximaV6-3.0LService typeVent Oil Separator ReplacementEstimate$429.96Shop/Dealer Price$507.28 - $689.57
1988 Nissan MaximaV6-3.0LService typeVent Oil Separator ReplacementEstimate$429.96Shop/Dealer Price$507.24 - $689.51
1985 Nissan MaximaV6-3.0LService typeVent Oil Separator ReplacementEstimate$440.96Shop/Dealer Price$517.94 - $699.98
2000 Nissan MaximaV6-3.0LService typeVent Oil Separator ReplacementEstimate$440.96Shop/Dealer Price$518.76 - $701.42
Show example Nissan Maxima Vent Oil Separator Replacement prices

What is the Vent Oil Seperator all about?

An internal combustion engine runs on a series of controlled explosions. During this process, gases are created. While most of those gases will eventually make their way from the combustion chamber through the exhaust manifold and out the muffler, some pass the pistons into the crankcase. The latter is called “blow-by”, and it can be very damaging to an engine. It creates additional pressure within the crankcase that damages seals and gaskets. To combat this deleterious effect, a ventilation system is used.

These systems require several different components in order to operate, including the positive crankcase ventilation (PCV) valve and the vent oil separator hose. The vent oil separator hose is responsible for capturing and collecting oil droplets that invariably accompany those spent gases and ensuring they are not released into the combustion chamber. The gases are then re-burned for emissions control. If your vent oil separator is plugged, excess pressure can build up inside the crankcase and blow out a seal, causing an oil leak. Excess oil in the vent oil separator can also enter the combustion chamber, causing a misfire and rough run with blue, oily exhaust.

Keep in mind:

  • The vent oil separator hose is susceptible to clogging, particularly during cold weather.
  • The vent oil separator hose is part of the crankcase ventilation system. If you’re experiencing related problems, have the entire system diagnosed.

How it's done:

  • The faulty vent oil separator is located and identified
  • The intake is removed and the vent oil separator is removed
  • The new vent oil separator is installed and the intake is installed
  • The engine is started and idled, then the new vent oil separator is checked for leaks
  • The vehicle is road tested and checked for proper operation

Our recommendation:

The vent oil separator doesn’t have a set maintenance schedule. If you are having symptoms related to the vent oil separator, have one of our expert mechanics diagnose the crankcase ventilation system on your vehicle and repair it as necessary.

What common symptoms indicate you may need to replace the Vent Oil Seperator?

  • Oil is present in the PCV valve
  • Blue smoke from the exhaust
  • Engine runs rough with a check engine light on

How important is this service?

The crankcase ventilation system is a vital part of your emissions control system and can adversely affect engine operation if it is not maintained properly.

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Meet some of our expert Nissan mechanics

Real customer reviews from Nissan owners like you.

Excellent Rating

(1,157)

Rating Summary
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1,072
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Jerel

11 years of experience
125 reviews
Jerel
11 years of experience
Nissan Maxima V6-3.0L - Starter - Raleigh, North Carolina
DId a great job and even came back the same day to get the job finished. I would recommend Jerel highly.

Robert

31 years of experience
641 reviews
Robert
31 years of experience
Nissan Maxima V6-3.0L - Vehicle dies (inspection) - Hayward, California
Very informative and helpful.

Rusty

23 years of experience
514 reviews
Rusty
23 years of experience
Nissan Maxima V6-3.0L - Brake light is not working - Arlington, Texas
Rusty is awesome. Have used him about ten times of five different cars. Always on time, professional. Recommend highly!!

Emmette

36 years of experience
282 reviews
Emmette
36 years of experience
Nissan Maxima V6-3.0L - Alternator - Arlington, Virginia
Very professional and got right down to business, didn't take long to do and everything was on point. Also showed up earlier than appointment time and didn't hesitate to start.

Excellent Rating

(1,157)

Rating Summary
1,072
43
12
6
24
1,072
43
12
6
24
Number of Nissan Maxima services completed
12727+
services done by our mechanics
TOTAL NUMBER OF EXPERT Nissan MECHANICS
1500+
experts on our platform

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