High pitch noise

geordi · **Posted:** Sat Jun 28, 2014 12:45 pm

So is it safe to say that the noise you were hearing was just normal turbo noises - just louder because of the failed inlet hose?

That inlet hose is a VERY common problem for anyone that has the CCV still connected up, the rubber just melts away from the oil contamination.

I wish we could source a silicone replacement from Samco for that, but I don't know anyone that does prototyping to get that made up.

OneCheekRider · **Posted:** Sun Jun 29, 2014 8:29 am

In a strange turn of events Weeks was correct. I replaced the turbo inlet hose and noise was still there... I then went through each hose, clamp, etc. Found the nuts to the intake adapter were a little loose. tightened them up and BOOM noise is gone.

I'm actually glad that noise was there as it led to the discovery of the severed hose and confirmed my turbo is in good shape.

Thanks everyone!!!

weeks101 wrote:

Sounds like a boost leak.

Did the dealer remove the intake elbow to service your rack? If so did they reinstall it correctly? Did they use a new gasket?

Start by checking the 4 nuts that secure the adapter and make sure they are tight. Also check the 2 hose clamps.

thermorex · **Posted:** Sun Jun 29, 2014 10:12 am

I wonder why there was no underboost cel... Maybe because the air to turbo was also shot, sucking air from outside the filter and MAF measured less air ? I thought underboost is triggered by map and acceleration.

weeks101 · **Joined:** Mon Jul 30, 2012 3:29 pm **Posts:** 747

Glad you found it!

WWDiesel · **Posted:** Sun Jun 29, 2014 12:49 pm

Make the dealer give you one!!!!
They broke it somehow while changing out the steering rack since it was not making the noise before they touched it and afterwards it was. :furious:

They are responsible!
Don't except any excuses,

thermorex · **Posted:** Mon Jun 30, 2014 7:15 pm

For 50some bucks, it's not worth the wasted time arguing with some Loco dealer imo

High pitch noise

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