Help! GT making hissing sound - Alfa Romeo Forum
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Help! GT making hissing sound

my GT started to make hissing sound when i depress the throttle. sounds like its trying to suck air in. does anybody know why? am too scared to drive it and alfa can only book me in 2 weeks time.
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Re: Help! GT making hissing sound

is it a diesel? If so I reckon it will be a pipe under pressure post turbo. The usual culprit is the big hose from the intercooler to the inlet manifold. Not a problem really just a small lack of power and black smoke when driving. Unless it's totally cut through you don't lose as much power as some people on here will tell you. That'll be your EGR!!

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