If I have a fuel system problem, I'm wondering what I'd need to do to be able to fix the issue. I don't want to be replacing parts just to see if it would now work. I'd rather take diagnostic steps to get to a solution rather waste a bunch and possibly never get to a solution. To that end:

What are the steps involved to diagnose the fuel system with an electric fuel pump?


I recently replaced the electric fuel pump in my Camaro. The fuel pump came with a sheet which has a diagnostic tree on it. Here are the steps involved:

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    What a lucky coincidence you bought that particular fuel pump because ... it has your answer in a handy flow chart. That is wonderful. Thanks for sharing.
    – John Canon
    Dec 10 '20 at 5:12
  • If it turns out that the fuel pump itself is bad, it might have worn itself out trying to push fuel through a clogged fuel filter. Also, the fuel pump may have clogged the filter with bits of metal while it was dying, so I change the filter every time I change a pump. Dec 22 '20 at 19:40

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