Skip the auto shop - Our mechanics make house calls

Q: Air sucking into oil dipstick

asked by on

I lose oil a lot. Have back pressure through oil dipstick and oil cap. When I take the dipstick out or unscrew the cap, not much loss of power.

My car has 110000 miles.
My car has an automatic transmission.

A: Hi, thanks for writing in. If the crankcase...

Hi, thanks for writing in. If the crankcase is building up pressure that will not equalize, then you have a clogged crankcase ventilation system, such as the crankcase air filter may be bad. Have the PCV valve and air filter crankcase tube filter changed as required. Check to make sure there is no blockage in the PCV system and that the engine does not have oil sludge build up in the engine for lack of oil changes.

If you would like help, consider having an expert automotive technician from YourMechanic come to your home or office to inspect and diagnose this issue for you, and make or suggest any repairs as needed, such as replacing the PCV valve or crankcase vent filter.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Excessive oil burning - 1986 Buick Electra Station Wagon

Hello. If the PCV system is not hooked up correctly, this will cause excessive oil burning. This needs to be checked and repaired first. If the PCV system is working then the issue is more than likely the piston rings...

Q: knocking in my engine

I'm assuming the truck has the 5.9ltr Cummins engine. While I cannot say if the engine is "shot" without looking it over myself, this engine has a 12 quart capacity. Being low 5 quarts is nearly 50% low on oil....

Q: Were is the code p0001

Hello. P0001 is the code for an issue with the fuel volume regulator circuit. This code is set off when the computer detects that there is an issue with the electric circuit that goes to the vehicle's fuel pressure regulator....

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...