Vacuum air leak?

Post by **DRFT24O** » Mon Apr 25, 2005 1:13 pm

Im hearing this loud hissing sound coming from somewhere right by the intake manifold next to the valve cover. It causes my idle to jump, I dont see any vacuum lines here though, where should i look?

Post by **TogueDrifter** » Mon Apr 25, 2005 5:57 pm

I had the same problem. Take a can of Carb. cleaner and start spraying. Your idle should do one of two things, raise or stumble. when I found mine it was the EGR valve and it stumbled, almost stalled actually because it was running so rich. Good luck with that!

Post by **DRFT24O** » Mon Apr 25, 2005 7:13 pm

start spraying where

Post by **DRFT24O** » Tue Apr 26, 2005 9:28 am

Post by **DRIFTEADOR** » Tue Apr 26, 2005 10:56 am

where the noise is coming from coming from.

or you could try something like this fitted straight to your tb:zerothread?id=113785

use soapy water and look for bubbling

Post by **TogueDrifter** » Tue Apr 26, 2005 5:46 pm

well yes, spray on the intake manifold, around it, where it meets the head.. so on and so forth.

Vacuum air leak?

Vacuum air leak?

Re: (DRFT24O)

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