Quote:
Originally Posted by gillzj00
Saturday night I pulled into the garage after about a 20 mile drive in some cold weather (30 degrees or so) and took this video:
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Sounds like the rear main seal and the noise should go away instantly when you remove the oil cap. It's just air whistling past the seal like a party-balloon and is not an indication of damage but it does pull the lubrication out the seal while also increasing the contact pressure so it will cause the seal to wear more rapidly. If that seal wears enough, it will leak a little oil and/or continue to make some noise even after the PCV is fixed.