Q: Leaking oil into the intake and PCV and catalytic converter

asked by on

Leaking oil into intake PCV and catalytic converter

My car has 150000 miles.

You would need to have the entire crankcase ventilation system checked and serviced first to make sure all the PCV valves are clean and working correctly, or if excessive oil will be consumed and get in the intake. The turbo would need to be inspected to see if it’s an oil seal leaking excessively and getting oil into the intake system. Once these are checked and repaired as needed, then have the intake system cleaned with combustion cleaner and then check engine blowby to see if it is excessive and causing crankcase overpressure conditions from compression leaking past the piston rings. If you need help having this checked, a professional from YourMechanic can come to your car’s location to pinpoint the oil leak and run the necessary tests to have this repaired properly.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Leaking oil into the intake and PCV and catalytic converter

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: car leaking water

Hi, thanks for writing in about your BMW 750i. Water alone is not meant to handle the cooling of the engine. If only water is used in the cooling system, the water will boil off and become nothing because the...

Q: Rattling and screeching noise

Hello. The A/C compressor clutch and pulley should be checked and you should replace the pulley only if the compressor is not leaking. If it is, then replace the complete compressor assembly. If you would like to have this checked,...

Q: I am having an oil leak coming from the bottom and the top of my engine, what could cause this?

Hi there. Most of the time these leaks come from the valve cover gaskets or the upper oil pan area. If the leak is really small, it can be caused by a failure in the PVC system. If the leak...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
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...