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where could my boost be leaking? 700

posted by  someone claiming to be seattle_erik on  Sun May 11 18:50 CST 2003 [RELATED]

what are some possible places boost air could be leaking from besides the 3 hoses/intercooler line? seems like my engine isn't getting all of the 12psi that the guage registers...








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where could my boost be leaking? 700

uid 55's pic
posted by  john sargent on  Mon May 12 05:10 CST 2003
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last visit: Wed Oct 22 09:07 CST 2014
[RELATED]

I strongly encourage you to remove all of the induction hoses and clean them inside and out. Only then can you really inspect for damage. The short straight hose on the discharge side of the intercooler is particularly prone to wearing out on the underside where it cannot be seen. The reinforced rubber elbow at the throttle body wears out on the outside of the bend.

It is quite unlikely that you have an intake manifold leak.








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where could my boost be leaking? 700

posted by  spasske on  Mon May 12 02:29 CST 2003
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last visit: Thu Oct 23 10:11 CST 2014
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I recently replaced my check valve, AKA delay valve. It is the red/white valve between the bypass valve and the intake manifold. It was leaking air.
--
Paul NW Indiana '89 740 Turbo 103,000








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where could my boost be leaking? 700

posted by  DaJet on  Sun May 11 21:16 CST 2003
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last visit: Tue Jul 3 10:50 CST 2007
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I think the intake manifold gasket is a good candidate for failure especially if you are running high boost. Make sure to use the 'green' gasket it's nice and thick. Use a length of vacuum hose to 'listen' for leaks around the intake manifold or any other area for that matter. If the leak is bad you should hear it even at idle.

JJ








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where could my boost be leaking? 700

posted by  someone claiming to be zip on  Mon May 12 04:59 CST 2003 [RELATED]

through EGR system if you have one.







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