Turbo Whistle

[cscott]

My turbo whistles over about 1500 RPM. I don't think this should be happening.



I took it to my local dealer, he kept it for a week, and he said I hear it because I have a K&N Air Filter (stock box).



He did replace a hose, don't know which one.



The pitch of the whistle changes with load and RPM.



Any suggentions on what hte problem might be?



Thanks

 

[DEZLPWR]

Sounds perfectly normal to me....

I LOVE turbo whistle!

 

[24V-DSL]

Boost leak??

If this is a new symptom, you may have a boost leak. I had one and just thought it was normal turbo whistle. It did vary with rpm and load. Don't see guages in your sig. My leak didn't effect my boost readings.

 

[Agades]

both cummins ive owned blew one of the rubber boots off ( connecting from turbo to cooler to engine )



check and make sure all rubber boots are on and tighten all the clamps

otherwise your turbo should wine

its in its nature

its cool

 

[cscott]

I will check all the hoses.



This is very high pitched and loud enough that I hear it over the radio, on long trips it can give me a headache.



I'm use to turbe whine but this is more of a whistle.

 

[RustyJC]

Do you have gauges? I had a whistle at 20+ psig boost that would drive you nuts. After tightening all the boots on the charge air system, replacing the intake elbow gasket, etc. , etc. , I finally found that the rubber hose going to my Westach EGT/boost gauge was just about to come off the barb fitting on the back of the gauge. All that was holding it on was the tie wrap I had installed for a clamp. After reseating the hose and installing 2 tie wraps, the whistle was gone!



Rusty

 

[rdanley]

cscott

i was told buy a guy that the oiled type air filters does make the turbo more noticiable . but hey i like it. tommorow i am going to take my silencer ring out (whilstle while you work) Oo.