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Subject know what? that's a good speculation now that i think about
     
Posted by inf on July 25, 2008 at 11:26 PM
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In Reply To Hmm. It could be the upper or lower plenum Gasket. posted by MixManMash on July 25, 2008 at 03:01 PM
     
Message it...since my vacuum has been fairly low and there is noise coming from the plenum gasket area. Also, I did reuse the gasket even though it's still kinda new I've taken the thing off a few times already...Even more interesting is that the bolt closest to the firewall has issues going on so I gotta loosen the all of the bolts and pull the plenum left a little to get the bolt in. My boost isn't hitting even near what I set it to, perhaps when enough pressure is made it starts leaking. More than likely I guess the gasket is misaligned and leaking air. One question, is the plenum supposed to hit boost pressure (in my case 14psi) or not? Because isn't it a rule that when doing a boost leak test you're not supposed to go over 5 psi?

     
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