Weird noise from lmm

[young582]

07 lmm every time I shut the truck off i get a weird buzzing from under the hood almost sounds like a electric current. It comes in series about 1 second apart Sounds like its coming from that throttle body crap on the intake tube after the I/c anyone know what this is,

 

[DIESELMAFIAPER.LB7]

It's the computer opening and closing the throttle valve.

 

[young582]

It's the computer opening and closing the throttle valve.

Ok anyone know what it exactly does

 

[Duramaxduner]

Mine does the exact same thing and its done it as long as Ive owned it. I think its just the nature of the beast.

 

[DIESELMAFIAPER.LB7]

it controls the air into the engine for emissions purposes. works just like a throttle body does for a gasser well basically does do a egr delete and that piece goes away to no more annoying buzz

 

[PACougar]

I believe it's a auto calibration that's done every time. My Merc does the exact same thing.

 

[young582]

it controls the air into the engine for emissions purposes. works just like a throttle body does for a gasser well basically does do a egr delete and that piece goes away to no more annoying buzz

I did egr delete but I didn't burly the intake pipe. They wanted 600 for the egr delete with pipe or 250 without I couldn't afford the 600 at the time.. I did dpf delete too

 

[DIESELMAFIAPER.LB7]

250 For what delete a cooler delete?

 

[young582]

Ya I got the sinster dekete