After I shut my truck off I can hear a small pump like sound on the drivers side of my truck... I was told its most likely the waste gate solenoid, I'd like to confirm as well as how to fix this. Someone mentioned replacing the wiring harness to the waste gate.

Heres the Video. Please help me out

Truck details
2011 F250 6.7 80K

 

It's probably the def pump draining the lines that you hear. You don't have a problem in my opinion. They all do it that I've been around.

Just listened to yours. Is quit a bit different in sound than mine and seems to last a little longer.

 

Why would it start doing this after 75 K? that at least when my 6.7 started. Is there a problem with my def sys?

 

Sounds like the waste gate to me. To confirm, next time you shut off your truck and the buzzing starts press on the brake. If it instantly goes away it's the waste gate. My '11 started doing it around 20k miles, which was about 70k miles ago. Ford used to replace them early on, although determined nothing was malfunctioning and stopped doing it.

 

BINGO SLORIDER! THANK YOU, so theres no issue?

 

Waste gate. Mine does it too. You can replace the vacuum harness to it if it's too annoying for you.

The DEF pump running in reverse to evacuate the line from the injector back to the tank sounded like a dull whistling noise from under the driver's side on mine, and nothing under the hood. (Mine no longer does that either though since it had weight loss surgery.)

 

Oh, so Bear had gastric bypass coupled with a bowel resection huh?

 

Sort of like removing the appendix so that it doesn't create issues later on. I wasn't having any issues, and didn't desire to in the future.

 

how much did it cost you? Is it a PIA to replace?

 

Monty and I were goofing off and may have led to some confusion. I have not done anything to remedy my wastegate solenoid. I live with the racket when I shut down. The noise I previously spoke of that I no longer hear at shutoff, is the DEF pump running backward to evacuate the lines, as my truck no longer requires DEF.

 

Thanks for the clarification

 

Like Doug said, no issue, my 2011 has been doing it for 7 years.