oil blowing out of the crankcase breather hose and into the air cleaner set up?

80

Asked by Guru3VGG8 Jul 03, 2020 at 03:12 PM about the 2001 Toyota Sienna LE

Question type: Maintenance & Repair

As above, oil is being pushed out of my engine
from a tube leading from the front valve cover to
the air cleaner

15 Answers

157,625

Sounds like a clogged PCV valve. Replace it and inspect the hoses going to and from the PCV valve for cracks and other damage. Hope that helps! Jim

3 people found this helpful.
80

Thank you Jim, very helpful, a shade tree mech. Told me that there is a pressure release valve under the valve cover that is stuck open ..I cant hunt down that part and it just doesnt make sense to me..thanks again

3 people found this helpful.

On a car that is 19 years old I would suspect engine blowby as the cause.

1 people found this helpful.
80

Bummer, it's has a lot of little things wrong with it, it maybe time to say goodbye..I appreciate your help..thanks for your time

2 people found this helpful.

First try cleaning or replacing the PCV. A heavier oil in the engine may buy you some time.

1 people found this helpful.
80

Thank you , I bought one this morning also replaced a small vacuum hose..I'll put the new PCV valve in when the sun gets lower in the sky..

1 people found this helpful.
80

Thanks for you help guys. I replaced the PCV valve and it running much better.. But at highway speeds the oils is still blowing through to the air cleaner..F_O_R is right, must be worn rings..thanks again y'all

2 people found this helpful.

Thanks for the update. If you are using 5W30 oil try 10W40. I have also found that with high mile engines that use oil, keeping clean oil in the engine helps with oil consumption. Try changing oil more often.

1 people found this helpful.
157,625

You're welcome. Glad to help and thanks for letting us know!! Jim

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