birofunk Posted May 25, 2013 Share Posted May 25, 2013 Is having a slight / short hiss after releasing off the gas normal in a 1.6 Zetec S ecoBoost? I've only had this car for 8 days (From new, a 2013 plate), but I've only just noticed this as well. It sounds like the noise that some people like to put on their car! Quote Link to comment Share on other sites More sharing options...
Foci_st3 Posted May 25, 2013 Share Posted May 25, 2013 It's will be the factory waste gate for the turbo, mine does this also and so did my st previously before I had a big exhaust put on. Quote Link to comment Share on other sites More sharing options...
birofunk Posted May 26, 2013 Author Share Posted May 26, 2013 Ahhh makes sense. I still might get Ford to give it a check over though. It sometimes does it when I'm accelerating as well (I just noticed). Other threads on here suggested a loose pipe that pumps the turbo air, in to the engine? Quote Link to comment Share on other sites More sharing options...
artscot79 Posted May 26, 2013 Share Posted May 26, 2013 Sounds like the waste gate nowt to worry about Quote Link to comment Share on other sites More sharing options...
Foci_st3 Posted May 26, 2013 Share Posted May 26, 2013 If it was the turbo boost pipe ur would have lots of noise and lack of power. Quote Link to comment Share on other sites More sharing options...
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