I hear this hissing sound like a vacuum leak on the passenger side of the motor. It sounds like on every hit of the rotor maybe on intake. Anyone ever have this problem.

 

If the hiss happens when you step on gas, it's probably an intake leak. Check the intake hoses.

 

Probably the iC hose from the y pipe..It has broken open.

 

Do you still get full boost?

 

It's most likely just the surge from the charge relief vavle.


Clarksville huh? I was born there and alot of my family the Appletons are form there.
Know of any Appletons as in the Harley dealership that used to be there?

-Dave

 

Thanks for the info. which one is the ic hose