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Wow that's a lot of symptoms. About a month ago I ran out of gas with about 50 mile left on on the digital gauge. Since then I ran out with a quarter tank. I also noticed a low rpm (500) at idle and once it stalled on my while turning into a parking lot. Tonight I noticed a hesitation when accelerating. I lifted the hood and noticed a quick sucking noise when giving it gas between 500 and 1500 rpms. Any ideas what could be causing all of these at the same time?
 

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I'm going to guess a fuel pump. Replace the filter too. Running it below a 1/4 is not a good idea and running out of gas is a really bad idea - EDIT: ok so it looks like maybe you're doing it accidentally but once the gauge/pump gets old, it's not as accurate, as you have discovered somewhat painfully. Anything north of 10 years on a pump is gravy.
 
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