RE: Fuel pump noise
for a noise gauge - if i'm sitting in the truck, parked, runningwith the windows up,I can't hear it butif I roll the window down, it's the first thing I notice. I would equate it to someone under the truck in that scenario with a dewalt cordless drill just holding the trigger, only a higher pitched whirl.
btw- I'm an aircraft mech so I'm up to speed on preventative maintenance.
I'mwondering if this is some type of high pressure fuel pump for the gas monster it's trying to feed...
it just sounds like a high pressure feeding noise.