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Discussion Starter #1
My check engine light came on this weekend, and the code scanner says it is a vacuum leak. I checked the fuel cap. I have an aftermarket intake which has no provision for the hose that comes from the valve cover to the original air box. Should something be done with that hose so that it is not just sucking in air?
 

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Did the vacum leak start right after you installed the intake? I'm not sure about the valve cover hose. I would think you caould just plug it so no water gets in there. Also check behind your throttle body, there is a large hose about the size of your thumb. Mine just went out about a month ago and I had to replace it.
 

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Discussion Starter #3
Thanks. I will check that. The intake has been on for about 4 months. I didn't think it was that, but that was the only hose that I could find that wasn't connected.
 

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most vaccum leaks occur inbetween the throttle body, and the manifold runners, the valve cover breather hose should connect to the intake
 
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