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Whistle noise under boost...i know iknow, i checked the hoses..:> 700 1988

posted by  jsaw on  Thu Mar 9 10:34 CST 2006
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last visit: Tue Nov 25 11:11 CST 2008
[RELATED]

Just installed a manual boost controller. When I re-assembled everthing, after checking the hoses thouroughly, it now makes a whistle under boost. With or without the boost controller turned up or fully off.

If turned up to 10 psi, it reads pressure to 10 psi, but stumbles a bit on the higher RPM's. If it's reading it, wouldn't that mean the turbo -out side of the intake system would be holding pressure?

Could that big expensive hose that goes from the AMM into the turbo cause the whistle but not a drop in pressure?

The Air fuel guage reads rich under WOT, so that also suggests an air leak.

Throttle body to manifold gasket? It looks a little dicey..

CBV gasket?

I used hard rubber fuel line to splice in the boost controller, they recommend silicone hosing. What do you brickers think?

Out to the garage to pull it all off, make a couple of gaskets and maybe get some duct tape in the mix. Shame on me, I know..

Thanks in advance for the advice,

Josh in Saskatchewan ( Whistling)






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