2005 Chevy Silverado 1500 4x4 starting issue

[Cameron Butler]

My 05’ Silverado won’t start. Over the past two years I have swapped a starter, battery, alternator and i just swapped the fuel pump. I wouldn’t know if it could be an injector issue or a fuel line issue, would anyone have any idea what the issue could be?

[sefiroxx]

Does it Crank?

Does it crank and try to catch?

[dtnel78]

So has it ran over the last two years in between swapping these parts? What was done prior to this issue beginning if you can recall? Any codes including former ones that you may have deleted as you may have thought it was something else while doing the parts cannon?

Got spark on all cylinders? Fuel pressure? Compression numbers?

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[02suburbanZ71]

Could very likely be a failing fuel pressure regulator. I would still put a mechanical fuel pressure gauge on the rail. Do that and post back to verify its getting the correct pressure.