Guest JonnyB Posted January 17, 2008 Share Posted January 17, 2008 hiya, as you might know i'm new to owning a supra so i dont know much about them yet. Driving my newly aquired supra home this morning i noticed that at around 78-80mph+ theres a hissing sound comming from behind me, only when i have the pedal down if i take my foot off it goes away even though i'm doing the same speed. Is this normal or if not any ideas what it could be? Thanks. Quote Link to comment Share on other sites More sharing options...
CarlT67 Posted January 17, 2008 Share Posted January 17, 2008 Are you sure its a hiss and not a rattle, if its a rattle (very tinny) then it could be a loose heat shield on your exhaust. Quote Link to comment Share on other sites More sharing options...
juanchan Posted January 17, 2008 Share Posted January 17, 2008 The only time my Supra has made a hissing sound was when I blew the oxygen sensor in the second cat out. I was at about 60 and on WOT when it went bang. Scared the living cr*p out of me! Quote Link to comment Share on other sites More sharing options...
Guest JonnyB Posted January 17, 2008 Share Posted January 17, 2008 it sounds like air is being let out of something its that kind of noise Quote Link to comment Share on other sites More sharing options...
Nic Posted January 17, 2008 Share Posted January 17, 2008 Definitely from behind you and not from the engine bay? NA or TT? Quote Link to comment Share on other sites More sharing options...
juanchan Posted January 17, 2008 Share Posted January 17, 2008 it sounds like air is being let out of something its that kind of noise You checked the exhaust over? I'm not too technical unfortunately, but I'd start there personally Quote Link to comment Share on other sites More sharing options...
Guest JonnyB Posted January 17, 2008 Share Posted January 17, 2008 well i've only got the car today so i'll get my local imports dealer to have a look and see what he thinks when i get it serviced but it definatly sounds as though its comming from the back, but that might be just where i'm hearing it from its hard to tell witjh some noises in cars. and like i said only at 78+ when i press the gas pedal, take my foot off the noise stops Quote Link to comment Share on other sites More sharing options...
miko_supra Posted January 17, 2008 Share Posted January 17, 2008 is it in any particular gear? Quote Link to comment Share on other sites More sharing options...
Guest JonnyB Posted January 17, 2008 Share Posted January 17, 2008 is it in any particular gear? i was on the m25 so i was only in 5th Quote Link to comment Share on other sites More sharing options...
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