New noise developed

rlu_tech · #1 (**permalink**) 10-08-2012, 02:58 PM

I recently noticed a noise that my truck makes while under light acceleration. The best way to describe it is a low pitched flute type noise, not really a whistle. It's hard to hear unless you are listening for it on purpose. It happens above 2K RPM but goes away under WOT accel. I know that my drivers side up pipe leaks at the flex joint so I'm thinking that is probably where its coming from. If it were a head gasket, I've heard the noise is loud, more of a higher pitch, and more whistle. Probably would lose coolant as well right?

04cr450 · #2 (**permalink**) 10-08-2012, 05:37 PM

I hear a high pitch noise similar to what you are talking about but it only happens when i press on the skinny slighty just taking off for an example.. This sound appeared when I installed an airraid intake... Probably the culprit.. If you had head gaskets issue yes you would lose coolant

rlu_tech · #3 (**permalink**) 10-08-2012, 05:48 PM

Oh okay, no coolant loss at all. Guess Ill be checking all the intake and CAC tubes for leaks as well.

04cr450 · #4 (**permalink**) 10-08-2012, 06:33 PM

If you had cac tube leaks you would know it. The truck would be very slow to respond and produce no boost. I am familiar with this noise your describing and it sounds normal with the 6.0 turbo... I hope im right in guessing your sound. Going out on a limb.