Tea kettle whislte sound

[Rotbody]

I did a EGR delete about 3000 miles ago. I start the truck up and at idle I can hear a autible high pitched whislte, The only other time I can hear it autibly is when I hit the gas off a stopsign at a certain RPM it seems.

Turbo boosts to 19-21, I dont have a tune to eliminate the EGR yet so I clear the code with my diagnostic code reader.

Any help would be appreciated-Mike

[FourFun]

Some say it can be from a bad degas cap not holding the 15psi, in my situation where it was constant and very audible, it was my headgaskets. I noticed i was also dumping coolant in the inside drivers side fender well. Good luck!

[Dave]

Change your degas bottle cap

[Rotbody]

Its not blowing anything out the cap that I have seen. It sounds like more where the turbo is

[Dave]

Then check for exhaust leaks

[Rotbody]

I heard of the up pipe cracking. Would this be something the warranty would cover? Truck has 60K on it and was bought 10/31/06....Im just asking in general. I have never had any problems with the truck since I bought it. So just asking. Thanks.

[Dave]

Warranty will cover that

[alwil]

It might not even be cracked....might just be a bad seal