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Q: not holding fuel pres. on 2002 Chevrolet Silverado 1500

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
have to crank 4-5 times before it will start have new fuel filter and replaced fuel pump 1 year ago
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Without being able to do tests its hard to guess, but I would Tee in a fuel pressure gauge crank over the engine watch the fuel pressure, switch off the engine it should hold fuel pressure for a period of time, if it drops immediately I would pinch of the return line after the fuel rail/fuel pressure regulator and repeat the test see if it now holds fuel pressure. If it does the fuel pressure regulator may be bleeding of pressure, if the fuel pressure still drops look for a leaking injector but this would show up in a big cloud of black smog on start up, bad fuel mileage and fouling of the spark plugs.
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