Thread: bb t25 issu e

My setup is a completely stock w11 .stock boost.after car takes off spools and discharge while driving I hear this slight nails on a chalkboard type noise that comes from front end just started. A ny info or help is appeciated thank you in advance

Boost gsuge holds steady I never took thevturbo off the engibe cokpletely stock

a sound clip would help. So many things to make noise under the hood.

Sounds like a squeaking brakes.I go intofirst moderately 3500 shift to 2nd while on accelerator before you here a little bit like nails on a chalkboard very faded its after changing gears or after bov dischrges air.try to gtbclip for you

I know nothing about turbochargers but from what it sounds like is a bad wheel bearing but only happens on the boost I'm assuming maybe It have something to do with my bearing in my compressor was curious if that usually is a symptom of a failing ball bearing turbo?no leaks sccording to presure gauge.no surging everything holds steady in boost.ni surging.checked before dropping motor in no shaft play. Do our drains get clogged from stAnding a while?

if the bearings are going the compressor wheel should have play in it. remove the intake pipe and check the wheel. you should not have any up and down movement. You should less than 1mm in and out.

Will check in aftrnoon tomorrow. Thanks bro will keep yu posted

Compressor side bearing is shot, my t25 did the same thing before I removed. Boosted fine but the wheel was having slight contact with the housing causing that noise.

It sounded like a low pitch wistle that lasts for l ike three seconds and goes away?what causes this kind of bearing failure? Car ran fine and all of a sudden it started. Im going to take my intake off today to check for shaft play.is it beter ifbi remove the heatshield to inspect this issue as well? Also could it be a leak on the exhaust manifold? I shaved a oittle off a heatshield mounting point t clear my ac.

Need new turbo buddy or get that thing rebuilt, even tho for the price most of the times is better to send a t28 unit to get rebuilt instead.... i would say baby it until it blows xD