Subaru Impreza 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 Subaru Impreza Vent Oil Separator Replacement is $462 with $253 for parts and $209 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1997 Subaru ImprezaH4-2.2LService typeVent Oil Separator ReplacementEstimate$759.38Shop/Dealer Price$907.98 - $1304.28
2011 Subaru ImprezaH4-2.5LService typeVent Oil Separator ReplacementEstimate$715.38Shop/Dealer Price$864.02 - $1260.35
1996 Subaru ImprezaH4-2.2LService typeVent Oil Separator ReplacementEstimate$715.38Shop/Dealer Price$864.02 - $1260.35
1999 Subaru ImprezaH4-2.2LService typeVent Oil Separator ReplacementEstimate$715.38Shop/Dealer Price$863.97 - $1260.26
1995 Subaru ImprezaH4-2.2LService typeVent Oil Separator ReplacementEstimate$715.38Shop/Dealer Price$864.05 - $1260.41
1999 Subaru ImprezaH4-2.5LService typeVent Oil Separator ReplacementEstimate$715.38Shop/Dealer Price$864.02 - $1260.35
1998 Subaru ImprezaH4-2.2LService typeVent Oil Separator ReplacementEstimate$726.38Shop/Dealer Price$874.72 - $1270.82
2009 Subaru ImprezaH4-2.5LService typeVent Oil Separator ReplacementEstimate$726.38Shop/Dealer Price$875.54 - $1272.26
Show example Subaru Impreza 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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Chris

22 years of experience
2247 reviews
Chris
22 years of experience
Subaru Impreza H4-2.0L - Brake Pads Replacement (Front, Rear) - Anaheim, California
I won’t use anybody else, Chris is fantastic! Knowledgeable, professional, punctual and honest. 5 stars all the way!

Brandon

20 years of experience
773 reviews
Brandon
20 years of experience
Subaru Impreza H4-2.5L Turbo - Crankshaft Harmonic Balancer Replacement - Kissimmee, Florida
Had to replace the harmonic balance and belt drive pulley. Brandon made the replacement in short order. He was knowledgeable, efficient and has an outstanding personality. I would recommend him wholeheartedly.

Trevor

23 years of experience
11 reviews
Trevor
23 years of experience
Subaru Impreza H4-2.5L Turbo - Oil Change - San Jose, California
Trevor was very professional and clearcut in his explanations. I am left in no doubt about what work is remaining on my car. It was a great experience. Highly recommended. I would however say that there was some confusion about the "mystery" supplement. Yourmechanic.com needs to figure out why you guys are recommending it and need to tell your mechanics about it.

Noe

36 years of experience
604 reviews
Noe
36 years of experience
Subaru Impreza H4-2.5L Turbo - Starter - Seattle, Washington
He was really great. On time, friendly and made me feel like he was going to do his best to get me back on the road. Which he did in short order. The best thing was he truly seemed as happy that he was able to help. Thanks again Noe.

Excellent Rating

(418)

Rating Summary
399
9
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399
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5
Number of Subaru Impreza services completed
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services done by our mechanics
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