intermittant whisling. ruled out a turbo leak - Ford Powerstroke Diesel Forum
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post #1 of 3 Old 06-25-2013, 08:24 PM Thread Starter
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intermittant whisling. ruled out a turbo leak

Soon after studing,egr delete, hpop ,blue spring upgrades turbo back exhaust and tuning, i started getting a high pitch whistle under the hood. had the turbo sys smoke tested but found no leaks. mechanic was able to rid the noise by changing the tension on the alternator.so i put a new one in. the noise went away for about a day but is now back. most noticable at cold start/hi idle and slow accelaration. goes away above 1800 rpm most of the time. comes and goes at idle. any one ever see idler and or tension pullies cause a hi pitch whistle?

06 f350 CC SB FX4 XLT UPFITTER, TOW COMMAND, CHROME PACKAGE, MOON ROOF:
ARP STUDS, EGR DELETE, FORD OIL COOLER, STC , DUMMY PLUGS AND UPPIPE, BLUE SPRING, BANJO GUT AND DRILLED, COOLANT FILTER , CAT EC-1, GRAND ROCK TURBO BACK CAT DELETE 4"/ 5", 58v FICM, 2.5"lift level, LIVEWIRE TS... WORK IN PROGRESS:
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post #2 of 3 Old 06-28-2013, 06:02 PM
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I am having the same noise from my truck did you ever figure out what it is
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post #3 of 3 Old 08-05-2013, 04:12 PM Thread Starter
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Quote:
Originally Posted by mack82 View Post
I am having the same noise from my truck did you ever figure out what it is
It is my y pipe bellows leaking. It went on long enough that I can see the carbon around it

06 f350 CC SB FX4 XLT UPFITTER, TOW COMMAND, CHROME PACKAGE, MOON ROOF:
ARP STUDS, EGR DELETE, FORD OIL COOLER, STC , DUMMY PLUGS AND UPPIPE, BLUE SPRING, BANJO GUT AND DRILLED, COOLANT FILTER , CAT EC-1, GRAND ROCK TURBO BACK CAT DELETE 4"/ 5", 58v FICM, 2.5"lift level, LIVEWIRE TS... WORK IN PROGRESS:
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