Oldsmobile 98 Crankcase Vent Filter Replacement at your home or office.

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Crankcase Vent Filter Replacement Service

How much does a Crankcase Vent Filter Replacement cost?

On average, the cost for a Oldsmobile 98 Crankcase Vent Filter Replacement is $98 with $3 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1977 Oldsmobile 98V8-5.7LService typeCrankcase Vent Filter ReplacementEstimate$126.97Shop/Dealer Price$139.97 - $156.45
1981 Oldsmobile 98V8-5.7L DieselService typeCrankcase Vent Filter ReplacementEstimate$106.97Shop/Dealer Price$119.98 - $136.48
1960 Oldsmobile 98V8-6.5LService typeCrankcase Vent Filter ReplacementEstimate$106.97Shop/Dealer Price$119.98 - $136.48
1983 Oldsmobile 98V6-4.1LService typeCrankcase Vent Filter ReplacementEstimate$106.97Shop/Dealer Price$119.96 - $136.44
1964 Oldsmobile 98V8-6.5LService typeCrankcase Vent Filter ReplacementEstimate$106.97Shop/Dealer Price$120.00 - $136.51
1980 Oldsmobile 98V8-5.0LService typeCrankcase Vent Filter ReplacementEstimate$106.97Shop/Dealer Price$119.98 - $136.48
1975 Oldsmobile 98V8-6.6LService typeCrankcase Vent Filter ReplacementEstimate$111.97Shop/Dealer Price$124.85 - $141.24
1979 Oldsmobile 98V8-5.7LService typeCrankcase Vent Filter ReplacementEstimate$111.97Shop/Dealer Price$125.22 - $141.90
Show example Oldsmobile 98 Crankcase Vent Filter Replacement prices

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.

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Excellent Rating

(34)

Rating Summary
33
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Rigoberto

11 years of experience
739 reviews
Rigoberto
11 years of experience
Oldsmobile 98 V6-3.8L - Car is not starting - Chicago, Illinois
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Luis

9 years of experience
130 reviews
Luis
9 years of experience
Oldsmobile 98 V6-3.8L - Brake Shoes (Rear) - Montvale, New Jersey
Luis showed up on time. He is very knowledgeable and took the time to explain my cars issues in detail. The work was done quickly & cleanly but, most importantly done right. I would highly recommend Luis.

Breck

20 years of experience
681 reviews
Breck
20 years of experience
Oldsmobile 98 V6-3.8L - Oil Pressure Light is on - Houston, Texas
The mobile mechanic came. I must say I am impressed! He found my house. He and I started talking. He said he owned two Ninety Eights previously. He was there to look at my Oldsmobile Ninety Eight. He had two Oldsmobile Ninety Eight Touring Sedans. The ones he owned were from the 1987-1990 era. He was describing the floor shifters and they had and how much he liked Ninety Eights, Touring Sedans, and the Oldsmobile Eighty Eight LSS too. He talked about how a family member owned one and how he was fixing his. He talked in detail about the Touring Sedan and the things he loved. He asked me how long had I owned my Ninety Eight. I told him 2003. He told me how he become a mechanic and went to school for it and more. He got into the Ninety Eight and it would not start. He got out and disconnected the battery and rubbed the negative and positive battery terminals together. He reconnected them and the Ninety Eight started! The instrumentation then told him exactly what it was. There is a sensor at the bottom of the oil pan. He said by doing what he did with the terminals, it cleared the computer and reset it. We went underneath the car and he showed me the sensor. He said which one did you replace? I told him. He said you were on the right path. You know what you are doing. You need to replace this sensor and not the one you did. You can get the sensor and replace it because it is clear you know what you are doing and on the right path. He said you also need to replace your valve cover gaskets. They are leaking. I told him I will request him to come back and do that. I am not doing that even thought I can.

Manuel

9 years of experience
56 reviews
Manuel
9 years of experience
Oldsmobile 98 V8-7.5L - Brake fluid is leaking - Thomasville, North Carolina
Excellent and very detailed...Will use again and again!

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(34)

Rating Summary
33
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33
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Number of Oldsmobile 98 services completed
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services done by our mechanics
TOTAL NUMBER OF EXPERT Oldsmobile MECHANICS
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