Q: Blowing oil through valve covers.

asked by on

318 engine blowing oil through valve covers, even at idle

My car has over 100,000 + miles
My car has an automatic transmission.

Hi there. Check the positive crankcase ventilation valve (PCV) and see if it’s plugged up. Also, check the engine oil and make sure that there is the proper amount of oil in the engine. Too much oil or a sticking PCV valve will cause the engine to build up too much crankcase pressure and blow out the valve cover seals. If you need further assistance with your leaks, then seek out a professional, such as one from Your Mechanic, to help you.

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. Blowing oil through valve covers.

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: A lot of fluid came out from the front of my car. I think there is a problem with the radiator.

The leaking fluid could be from your radiator. The radiator is at the front of your car and contains antifreeze or coolant. Any damage to the radiator can cause a loss of antifreeze or coolant. In addition, the radiator hoses...

Q: my transmission is having a hard time shifting into 3rd. its a high mileage vehicle 267k miles. the fluid is brown. what do i do.?

Check the transmission throttle valve (TV) cable. There is a return spring on this assembly that sometimes is gone or faulty. Changing the fluid and filter will not cause the transmission to malfunction. However, prior to doing that, external pressures...

Q: Engine stutters then check light comes on at startup

Exhaust leaks can cause the check engine light to set. If you have an exhaust leak, it should be repaired because carbon monoxide is deadly. You can have the source of the leak identified, and repaired, by requesting an exhaust...

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...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...