How Long Does a Vent Oil Separator Last?

The engine in your car can only run when the right number of controlled explosions are performed. During the explosions, there are a number of gases that are produced that will then be filtered out of the engine. The exhaust gases are released through the manifold system and are then pushed out the back of your car’s tail pipe. The blow-by gas that is produced during these explosions can be very harmful to the engine, which is why there are a number of components that are in place to keep it at bay. The vent oil separator helps to collect the oil that is produced by this harmful gas to keep it out of the crankcase.

With all of the different issues that can arise with this part of a car, it is a good idea to keep an eye out for signs of trouble. In some instances, there will be too much oil in this separator and it will start to cause the engine to misfire. If the vent oil separator becomes clogged in any way, then it will lead to excessive pressure in the engine. This high level of pressure can lead to a seal being blown in your car’s crankcase.

During colder parts of the year, the vent oil separator will have more trouble doing the job it is intended for. In some instances, problems with other components of the crankcase ventilation system can mimic issues with the vent oil separator. When in doubt of what is causing the issues you are experiencing, you will need to find a professional to give you a hand. They can diagnose and fix your vent oil separator or your crankcase ventilation system to ensure your vehicle is in top shape for optimal driving.

The following are a few of the issues that may arise when this part of your car is in need of repair:

  • There is oil in the PCV valve
  • There is blue smoke coming from the exhaust
  • The engine is running very rough

Addressing the issues that you have with your vent oil separator will allow you to restore the functionality that you have lost.


Next Step

Schedule Vent Oil Separator Replacement

The most popular service booked by readers of this article is Vent Oil Separator Replacement. YourMechanic’s technicians bring the dealership to you by performing this job at your home or office 7-days a week between 7AM-9PM. We currently cover over 2,000 cities and have 100k+ 5-star reviews... LEARN MORE

SEE PRICING & SCHEDULING

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Recent Vent Oil Separator Replacement reviews

Excellent Rating

(12)

Rating Summary
12
0
0
0
0
12
0
0
0
0

Vladimir

10 years of experience
214 reviews
Vladimir
10 years of experience
Porsche Boxster H6-2.7L - Vent Oil Seperator - Roseville, California
Good service, good cleanup when finished.
Porsche Boxster - Vent Oil Seperator - Roseville, California
Great effort to find problem, but missed real problem. Porsche is different than most autos. Problem was a cooling valve for transmission. Had a air leak. Needed Porsche experience I guess. Thanks Ken m.

Rigoberto

11 years of experience
739 reviews
Rigoberto
11 years of experience
Audi Q7 V8-4.2L - Vent Oil Seperator - Chicago, Illinois
Rigoberto is a very knowledgeable mechanic. He fixed my Audi Q7 and I ended saving money compared to taking it to the dealer. He was on time and very friendly, I would book him again and recommend him to friends and family.
Volkswagen Passat - Vent Oil Seperator - Chicago, Illinois
Rigo was great. He was friendly and professional and always took the time to answer all my questions.

Robert

27 years of experience
333 reviews
Robert
27 years of experience
BMW 325i L6-2.5L - Vent Oil Seperator - Greenbelt, Maryland
Great guy. Came on time. Got straight to work. After he was done. He explain everything that was done and told me about other problems I have. I will have to make another appointment with Robert.

Chris

18 years of experience
491 reviews
Chris
18 years of experience
Mercedes-Benz C300 V6-3.0L - Vent Oil Seperator - Houston, Texas
Everything was perfect , timely , and neat

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE

Related articles

How to Replace an Air Diverter Valve
Car air diverter valves add clean air from the air pump to the emissions system to push out pollutants. Air valves are critical for car performance.
How to Replace an Exhaust Gas Recirculation (EGR) Valve
The exhaust gas recirculation (EGR) valve can cause drivability problems if it fails and should be replaced to avoid engine performance issues.
How to Replace an Air Conditioning Expansion Valve (Orifice Tube)
Car air conditioning systems need the expansion valve, or orifice tube, replaced if the AC is blowing warm air or the AC system is broken.

Related questions

The price of unplugging the EGR passage
It depends on the car and what you need to do. I’ve got a video “unplug the EGR low-flow with a speedometer cable (https://www.youtube.com/watch?v=6_eSvvuQm1E)” and a lot of times they work pretty well. You unbolt the EGR valve and then...
Why doesn't my 2005 Ford Mustang have a valve cover gasket? When I went to replace it there was none on the pan?
Hey there. There is no known Ford Mustang engine I know of that does not have a gasket for the valve cover. Some engines will use a bead of silicone all the way around. You will need to clean out...
Where is purge valve for evap canister 07 honda civic si
The purge valve is mounted on the engine and you will see hose connections from the valve to the intake manifold as well as a wire harness connection. The purge valve should be tested to determine if it is actually...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (855) 347-2779 · hi@yourmechanic.com