matt b Posted October 24, 2008 Share Posted October 24, 2008 hi all ive got a focus st170 and its developed a hissing noise a few seconds after you change gear and it also does it sometimes just when your diving along as well. it sounds like its coming from the dash but i suspect its on the engine bay side of the bulkhead, could the gearchange thing be related to the noise?? im proper puzzled with it and also my revs have started to stick aswell ive checked the peddle is not sticking and its fine could this be something to do with the throttle body???? Quote Link to comment Share on other sites More sharing options...
Matt_focus_zetec Posted October 25, 2008 Share Posted October 25, 2008 have you got a dump valve that may have failed or soemthing along hte lines of that Matt Quote Link to comment Share on other sites More sharing options...
matt b Posted October 25, 2008 Author Share Posted October 25, 2008 no mate i aint got a dump valve matt Quote Link to comment Share on other sites More sharing options...
mintalkin Posted October 25, 2008 Share Posted October 25, 2008 check for any loose or split boost/turbo pipes Quote Link to comment Share on other sites More sharing options...
Matt_focus_zetec Posted October 30, 2008 Share Posted October 30, 2008 Or long shot turn ur steering full lock as hard as you can see if it makes it then my charlottes fiesta does that makes some strange noise come to think of it so does my focus and the dump valve was just to rule it out Matt Quote Link to comment Share on other sites More sharing options...
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