the stock air box is also a muffler

 

BTH , what kind of issues will cause you to hear the fart loud and clear with a stock airbox?

 

sticking turbo veins or bad VGT

 

or taco bell

 

So at the end the turbo fart is not normal right?
I have never heard it in my truck.

 

I only hear mine if I'm stepping into it pretty hard and suddenly let off, thats the only time.

 

Thanks for all the replies guys! I am still alittle unclear on weather this is a problem or not. The truck goes in for warranty work( coolant smell in cab) this week and I will ask them to check into it. I appreciate everyones input.

Elkarcher

 

If you have the factory Donaldson air intake installed then it is not normal and you should have the tech check the turbo for sticking vanes, or a malfunctioning turbo actuator solenoid.

 

good thing you mentioned this. my buddies 05' farts with his stock intake. assumed it was normal.

 

elkarcher,

I had the same problem, more noticable when pulling a camper, but it got to the point it would happen when letting off fuel pedal. Ford finally diagnosed as a bad turbo and replaced the EGR at the same time.

 

Thanks for the adivice guys! The truck goes in for warranty work tommorow and I will post the results. Kinda sounds like most of my problems could be related...

Turbo fart= sticking vanes or acuator solenoid malfunction=overboost=lifted heads, bad gaskets=collant smell in cab. Possible scenario?