Thanks for your reply , Doc! When it was installed in December....no noise
> whatsoever! In the last few weeks, I hear it while driving, windows up, no
> radio on, no AC blowing! When I crawl under the car, next to the fuel tank,
> let the ol' lady turn the ignition to the "on" position, it's blatantly loud
> for a few seconds ....energizing???? Once the car is started, it does it's
> thing for the initial few seconds then tapers off to a louder-than-before,
> whewwwwwww kinda exhaust-leak sound??? What I'm trying to say is......it's a
> damn sight louder than I "think" is normal! Certainly louder than it > original install!
> p.s. - I remember the mechanic (a trusted friend) showing me the original
> and new fuel pump.....remember it being rounder than a coffee can and twice
> as tall, plastic cheesy looking mechanism....just never asked where it was
> located on the Yukon? Figured it was in the engine compartment, not the fuel
> tank...seemed damn big to be going in the tank...Did the tank have to be
> dropped for the install???
Yeah, the tank must be dropped for the install, or the bed removed (not on your Yukon, but on trucks) to get the sending unit + pump out of the tank.
Doc
> >
> > > Replaced it less than 3 months ago! Warned not to let the gas level get
> > > below 1/4 of a tank due to the wear it puts on the fuel pump???? > >
> > Harpman, it's supposed to make noise. When it STOPS making noise, you're
> in
> > trouble. Some are louder than others, but they all whine. You're correct
> > on not letting the tank get below 1/4. The pump uses the fuel to keep
> > itself cool; if the gas gets too low the pump gets hot and it's life is > > shortened.
> >
> > Doc
> >
> > >
> > > > Fuel Pump.
> > > > --
> > > > Computer Tips & Tweaks
> > > >formatting link
> > > > --
> > > > A government that robs Peter to pay Paul
> > > > can always count on Paul's support.
> > > >
> > > >
> > > > > Turn the ignition key to the ON position and I hear this odd > > mechanical
> > > > > "groan" coming from the fuel tank? Obviously something is being
> > > > "energized"
> > > > > ??? It "groans" for a moment , then stops...thus the "energizing"
> > > > > comment...for lack of a better analogy? Starting the car crates the
> > same
> > > > > initial groan, then a quick taper down in sound to a "softer" > acoustic
> > > > > version of the initial louder groan? What the heck is inside,
> > > > > electronically, the fuel tank that would create such a noise?
> > > > > Respectfully,
> > > > > Harp
> > > > >
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