Quote:
Originally Posted by 376LS3
If you rev the engine, you are decreasing engine vacuum which is telling the bypass to start closing, which is allowing some air to go through the rotors. Like i said, rotor speed has nothing to do with vacuum as long as your actuator is working correctly. I would absolutely double check your lines going to and from the actuator. Something has to be crossed.
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I'm feeling like an idiot right now. I knew how it worked because I zip tied it open a few years ago when I like my son take it to Homecoming. With the actuator open it can only recirculate and not boost.
I"m actually guessing manifold gasket leak. I'll find out tomorrow.
Quote:
Originally Posted by fourmz
Might also want to check the grommet on the booster itself. I had one split on my 2008 Silverado and cause a slight leak. cant hurt to check.
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It does look good.