i wonder if my tank is collapsed.. weird feeling it is.. i was driving around my neighborhood uphill and i heard a pop like someone pulling a dent. and i just put 25$ of fuel in which was appx 10 gallons and its registering at 1/4 tank from almost on R.. also when i was removing the sending unit i noticed on the top left rear corner it is pushed in a little and a silver piece of metal is welded in that spot.. this car keeps giving me surprises