5.3 sounds like it has a loud turbo and ticking at idle

[towdog333]

I installed a flowthru muffler and whacked the resonator off and she sounds sic

[Dustin McDaniel]

On 1/15/2014 at 2:48 AM, 20Denali22 said:

Exactly the same as mine. I even went to the dealer and started 2 new trucks and they were the same as mine. Ticking and s completely normal to DI engines. I would like to see though if someone figures out the whine though.

The wine is from the air intake it is actually louder if u put a cold air intake on it there is no fix for it its just how they have there intakes made i put an aftermarket muffler on it and it didnt take away the whistle i put and ckld air on my truck and it made it louder but when i gutted my cats it fixed the whistle whats goin on is the motor is pulling in so much air and u have way to much back pressure for the motor the intake pulls in air as the back pressure is tryin to push it back into the motor