Hi All,

I have a 2012 F250 SD with the 6.7 PSD. Can anyone tell me what the whining noise is that I hear after I shut the truck off? The sound is coming from the fuel tank area. Not sure if it is the fuel pump bleeding off to relieve pressure. Is this normal? Thanks for any help.

John

 

Has anyone else heard this noise????

 

I think we need a little more background on this.
Is the wife still in the vehicle at this point?

 

Sounds like your turbo winding down. Noise is possibly coming out your exhaust?

 

Is it the def tank pumping the fluid back to the tank? I know large trucks pump fluid back to tank coz def freezes .

 

I mostly hear the noise when I get out of the truck on the drivers side. I hear it around the fuel tank area. Not sure if the DEF pump runs or not after shutting down. The noise will last for a minute or so.

 

I'm wondering if it's the same thing that I've heard before. Has something to do with the brakes where if you hit the brake pedal after shutting the truck off, it makes that noise. It goes away eventually and doesn't affect anything (from what I remember reading). If you don't like it, you can either not touch the brakes after turning the truck off, or if you accidentally do, put the key back in and turn it to On, then turn it back off and the sound should go away.

Then again, where I hear the sound is from under the hood, so may be something completely different.

 

You should have your turbo waste gate solenoid checked.

 

it your def being pumped backed into the tank at shutdown