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Fuel delivery problems

(1999 Chevrolet Silverado 1500)
in Cheney, WA on March 19, 2010
I have replaced the fuel pump when it quit running on the freeway, replaced the fuel filter and the fuel pressure regulator also. It runs decent but it has a slight miss and there is a vibrating noise coming from the fuel rails and vibrating back to the fuel filter. The vaccum lines have been checked, no difference in runability when the line is taken off of the regulator.
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Popular Answer
on March 19, 2010
You have eliminated a lot of problems. How about ignition components
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