Vacuum pulling on the oil cap? EGR issue?
#11
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Hey, just wanted to drop a huge thanks to you guys. I installed a generic o-ring that was just the right size to slide over the bottom of the PCV valve. The car not only stopped making noise, it also seems to have a little better pickup.
#12
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Originally Posted by redly1
Hey, just wanted to drop a huge thanks to you guys. I installed a generic o-ring that was just the right size to slide over the bottom of the PCV valve. The car not only stopped making noise, it also seems to have a little better pickup.
#13
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The whistle noise is caused by the extreme vacuum in the crank case pulling against the lips on the crankshaft end seals. Between the vacuum and the rotation, the seal lips will actually vibrate and open just enough to allow air to be sucked in past the seal and create a high pitched whistle noise from the flow of air.
As bill buttermore said, this does cause harm to the seal so don't ignore it.
I know this particular case is fixed, I just thought I'd add that bit of info.
As bill buttermore said, this does cause harm to the seal so don't ignore it.
I know this particular case is fixed, I just thought I'd add that bit of info.
#14
DINOSAURUS BOOSTUS
Expert Gearhead
Originally Posted by motorhead
The whistle noise is caused by the extreme vacuum in the crank case pulling against the lips on the crankshaft end seals. Between the vacuum and the rotation, the seal lips will actually vibrate and open just enough to allow air to be sucked in past the seal and create a high pitched whistle noise from the flow of air.
As bill buttermore said, this does cause harm to the seal so don't ignore it.
I know this particular case is fixed, I just thought I'd add that bit of info.
As bill buttermore said, this does cause harm to the seal so don't ignore it.
I know this particular case is fixed, I just thought I'd add that bit of info.
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Vio_late
Audio (and aftermarket electronics)
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04-02-2004 05:22 PM