95 Blazer buzzing sound

[firecadet613]

Coming from the underside of my 1995 Blazer LT 4-Door 4x4 is a slight buzzing/humming sound.  It is only when it is running?  Does anyone have any idea what it is?

 

Thanks,

 

Joe Thomson

[email protected]

[Frank S]

It's most likely the fuel pump.

 

Have someone get into your Blazer while you are outside and turn the key on but not start it.If you hear the noise coming from under the vehicle toward the rear on the drivers side and it shuts off after a few seconds,it's definitely the fuel pump.

[firecadet613]

Yup, its the fuel pump.  Thanks for the quick reply.

 

Thanks,

 

Joe Thomson

[email protected]

 

You're welcome-Frank