[bwood]

The humming is normal as this is the sound of the pump priming, it also hums while the truck is running, you just can't hear it over the engine. The noise that 53burb is speaking of is apperantly due to a loose pump retaining ring. When you lock the ring, how do you do it? I believe you are suppost to use a block of wood or a BRASS drift and tap it down. I have never heard of one coming loose on its own. I did the pump in mine about 4 years ago and all is still good. Is is possible that althought the pump works, it is the wrong pump? The pump should have a 3 digit code on it (TCU or TCF), call a parts house and see it they give options for different fuel pumps according to that code. Also to the tabs on tank look damaged? I believe there is an oring associated with the seal at the top of the pump, is it there, or damaged? As for you idea to use some gasket material (I assume you mean RTV or something similar), Just make sure it is fuel safe.