I have a 2008 Unlimited automatic with just over 51K on it. Every time I hit the gas pedal, no matter how fast I am going, i can hear a very high pitch whistling. It happens just when you first hit the pedal and stop when you are cruising... it is anytime you tap the pedal... Any thoughts?

 

Nope, it's entirely stock... Is something loose with the throttlebody?

 

I get this whiny noise too but only after driving a few miles. I could hear it more when the doors are off and it seems to come from the driver side somewhere. I read somewhere that when the low brake indicator thingy gets hot it rubs on the rotor? never heard of such thing, but then again I am no mechanic. Can you hear it inside the Jeep?

 

I can hear it when the windows are open, top off etc.... it's not in the cab.

 

The turbo kicked in at 51k.

 

make sure all intake tube clamps are tight, and the tube is properly on. and make sure the air box has all 4 latches latched, and is on correctly also.

my jk does this, but i have a k&n and also the muffler on the end of the air box is off.

 

I wish there was a turbo

Thx, I'll check all connections later.

 

Negative guys, throttle body and all connections looks good... Any ideas?

 

I'm with this guy. It was very pronounced on my Jeep until I took off my cai. I think you are hearing it because you know its there. I know I do.