Fuel Pressure Regulator buzzing-Humming??

[MMLMM]

Now what? lol. Turn key off buzzes for a little longer then no more buzzing.

Stock Reg. on 2nd cp3.

 

[JoshH]

You sure it's the regulator and not the turbo? I've heard turbos buzz. My dad's stock LMM does it.

 

[MMLMM]

Regulator fo sho. When i unplug it it stops and then continues when I plug it back in.

 

[ripmf666]

Mine buzzes for a few secs after I shut the truck off then it stops

 

[MMLMM]

Mine buzzes for a few secs after I shut the truck off then it stops

Hmmm never did it before I had this problem, and its only the one on the 2nd cp3, the stock cp3 one is quiet.

 

[ripmf666]

Hmmm never did it before I had this problem, and its only the one on the 2nd cp3, the stock cp3 one is quiet.

its hard to hear the stock one down in there.

 

[MMLMM]

This sucker is loud. When I unplug it you hear dead silence. If the stock one is buzzing, its not even close to how loud this one is.