Crankcase Vent Filter Replacement at your home or office.

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How much does Crankcase Vent Filter Replacement cost?

It depends on the type of car you drive and the auto repair shop you go to. Our mechanics are mobile, which means they don't have the overhead that repair shops have. They provide you convenience by coming to your home or office.

Car Labor Cost Parts Cost Estimate Average Dealer Price Savings
2005 Volvo V70 $210.00 $88.19 $298 $410.69 27%
2004 Dodge Grand Caravan $70.00 $102.28 $172 $209.78 17%
2003 Volvo V70 $210.00 $88.19 $298 $410.69 27%
2012 Hyundai Genesis Coupe $70.00 $93.94 $164 $201.44 18%
2003 GMC Sierra 1500 $70.00 $5.99 $76 $113.49 33%
2011 BMW 328i xDrive $98.00 $88.14 $186 $238.64 21%
2004 Mercedes-Benz S430 $70.00 $88.14 $158 $195.64 19%
2006 BMW 650i $98.00 $88.14 $186 $238.64 21%
2009 Dodge Viper $70.00 $102.28 $172 $209.78 17%
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Crankcase Vent Filter Replacement Service

What is the Crankcase Vent Filter all about?

The most common application for the crankcase vent filter is on high performance engines such as race cars, though it is widely used on older models of vehicles as well. Inside the engine, small amounts of combustion gases push by the piston in the cylinder and enter the crankcase, or the bottom end of the engine. These gases create a positive pressure inside the crankcase, which needs ventilation. Positive crankcase pressure robs the engine of power as the pistons have to fight against that pressure when performing each down stroke.

A breather tube is mounted at the top of the crankcase in the engine block that releases the positive pressure into the environment or into the intake to cleanly burn them before they enter the atmosphere. The breather tube contains a port or elbow at some point along its route where the crankcase vent filter is installed. The crankcase vent filter allows excess pressure to push out into the environment without carrying oil particles or other messy contaminants with the gases. It also prevents any debris or dirt from entering the crankcase if there is a situation where negative pressure occurs, such as engine cooldown. If the crankcase vent filter is plugged, the excess positive pressure inside the crankcase can blow out engine oil seals. If the crankcase vent filter isn’t in place, dirt can enter the crankcase and plug oil galleries or contaminate the oil, which can cause lasting engine damage.

Keep in mind:

  • The crankcase vent filter works contrary to how other filters operate. Its main purpose is to prevent contaminants in the engine from entering the atmosphere, while most other filters prevent contaminants from entering the engine.

How it's done:

  • The crankcase vent filter is verified that it needs to be replaced. The air filter housing is then opened.
  • The defective crankcase vent filter is removed by disconnecting the vent hose and removing the clip.
  • The new crankcase vent filter is installed and secured with a clip. The vent hose is then connected.
  • The air cleaner housing is closed. The crankcase vent filter is then tested for operation.
  • The vehicle is road tested to ensure proper operation of the crankcase vent filter.

Our recommendation:

The crankcase vent filter will eventually become plugged with oil that is carried by the exiting vapor. It should be checked whenever the engine air filter is replaced, and should be replaced at least as often as the spark plugs. If you experience symptoms that may be related to the crankcase vent filter, have one of our expert technicians diagnose and replace the vent filter.

What common symptoms indicate you may need to replace the Crankcase Vent Filter?

  • Oil on the engine
  • Plugged filter causing engine seals to leak
  • Decrease in engine performance

How important is this service?

When the crankcase vent filter is plugged, engine oil will leak when seals are pushed out. If the vent filter is missing or broken, contaminants can enter the crankcase. If the vent filter is not in place, an oily mess can occur under your hood. It is prudent to replace the crankcase vent filter as soon as needed.

Fast and easy Crankcase Vent Filter Replacement service at your home or office.

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Recent Crankcase Vent Filter Replacement reviews

Clifton

26 years of experience
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I was very pleased with Clifton, his manner and professionalism. He replaced my fuel sensor and everything is working well. He also showed concern for other questions I had regarding my 2001 Buick. My fan motor was making a roaring noise and I was thinking of replacing my fan motor. He found that the cabin air filter and cover were missing and leaves and debris had entered the intake air opening under the hood. After using my shop vac to remove the air obstruction everything worked like new. This is my first experience with Yourmechanic.com and it definitely will not be my last and I am passing my message of upmost satisfaction on to my family and friends.
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aldo

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aldo
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