I believe you are talking about PCV Valve - whose function is to relieve the vacuum created by engine compression. Make sure you clean these tube once awhile. Sometimes, it's filled with engine oil... and oil eats out rubber/plastic hoses.Originally posted by 714guy
anybody know what those two 2 holes are for? there the one under the intake tube that goes across the the engine and there also two spouts front the tube that flows into the holes too.
Thanks