andyxr6t Member 35 Member For: 15y 5m 8d Gender: Male Location: Newcastle Posted 01/06/11 06:52 AM Share Posted 01/06/11 06:52 AM Hey all, Last few days I have noticed a strange hissing noise at higher RPM.The hissing happens in short bursts(about 2 bursts a second)and I have only noticed it in higher gears under hard acceleration.The car has been tuned for well over 6 months and I haven't noticed this before, and was just unsure if it was something I should get checked out?It sounds as if the waste gate it dumping extra boost, however shouldn't the computer be controlling it better?Thanks for your helpAndrew Link to comment https://www.fordxr6turbo.com/forum/topic/75137-hissing-burst-under-hard-acceleration/ Share on other sites More sharing options...
Benny Member 1,869 Member For: 21y 9m 23d Gender: Male Location: Newcastle Posted 01/06/11 08:22 AM Share Posted 01/06/11 08:22 AM Sounds like a boost leak but for it to happen in bursts of 2 a second sounds strange. Have you checked your piping and joiners?Benny Link to comment https://www.fordxr6turbo.com/forum/topic/75137-hissing-burst-under-hard-acceleration/#findComment-1110698 Share on other sites More sharing options...
andyxr6t Member 35 Member For: 15y 5m 8d Gender: Male Location: Newcastle Posted 01/06/11 08:33 AM Author Share Posted 01/06/11 08:33 AM Ive had a quick look, but didn't look at the full intake as I though a boost leak would be present all the time not just in bursts.I will have a good look tomorrow.It defiantly happens in quick repetitive short bursts, about 2 a second until I drop off the gas.Andrew. Link to comment https://www.fordxr6turbo.com/forum/topic/75137-hissing-burst-under-hard-acceleration/#findComment-1110703 Share on other sites More sharing options...
Gasman Ford Nub Member 412 Member For: 14y 1m 21d Gender: Male Location: Gold Coast Posted 08/06/11 09:20 AM Share Posted 08/06/11 09:20 AM check the bolts that hold the turbo housing to the manifold. Mine was making a similar sound. Was missing 1 bolt and 2 others were finger tight. Link to comment https://www.fordxr6turbo.com/forum/topic/75137-hissing-burst-under-hard-acceleration/#findComment-1112709 Share on other sites More sharing options...
andyxr6t Member 35 Member For: 15y 5m 8d Gender: Male Location: Newcastle Posted 08/06/11 09:36 AM Author Share Posted 08/06/11 09:36 AM Thanks Gasman,Its booked in at the tuners early next week, will have a look before hand to try narrow down the problem.Andrew. Link to comment https://www.fordxr6turbo.com/forum/topic/75137-hissing-burst-under-hard-acceleration/#findComment-1112724 Share on other sites More sharing options...
Henz Tampon inserted, Auto Acquired, next purchase a new handbag Donating Members 9,946 Member For: 17y 2m 9d Gender: Male Location: Vic Posted 09/06/11 01:55 AM Share Posted 09/06/11 01:55 AM Mine made a similar noise when missing a turbo bolt. Link to comment https://www.fordxr6turbo.com/forum/topic/75137-hissing-burst-under-hard-acceleration/#findComment-1112856 Share on other sites More sharing options...
will-82 Member 427 Member For: 20y 4m 13d Location: sydney Posted 15/06/11 10:55 AM Share Posted 15/06/11 10:55 AM Check the bolts that hold the comp housing on Link to comment https://www.fordxr6turbo.com/forum/topic/75137-hissing-burst-under-hard-acceleration/#findComment-1114547 Share on other sites More sharing options...
andyxr6t Member 35 Member For: 15y 5m 8d Gender: Male Location: Newcastle Posted 17/06/11 01:46 PM Author Share Posted 17/06/11 01:46 PM Turns out I had a few loose turbo bolts.All torqued and back in actionThanks for the help guysAndrew. Link to comment https://www.fordxr6turbo.com/forum/topic/75137-hissing-burst-under-hard-acceleration/#findComment-1115090 Share on other sites More sharing options...
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