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Rocks, Tonic, Oil and PCV

ronmexico

Ready to race!
Location
Brooklyn
Over the past few weeks I have noticed that I am maxing out at 10PSI and holding around 8-9PSI, When I first got the car in the summer I was hitting around 14PSI and hold around 10PSI (no chip) Anyway I checked my PCV by removing the hose from the intake and blowing in it, nothing went through. But there was oil in it, and it had a milky white look to it. The other symptom I have noticed is a slight shimmy at idle, I can fell it in my ass (i kind of like it) and its not all the time. I also have noticed that when the car is cold it makes a knocking sound, but goes away once its warmed up.
Being that the PCV seems to be OK, I thinking maybe the DV

So can anyone explain to me how the DV fails, actually what malfunctions to makes it not work correctly.
 
Last edited:

Cosmo

chillin'
Location
varies
DV failure is typically due to a tear in the diaphragm. The severity of the tear determines the severity of the resulting leak and boost issues/symptoms.
 
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