Question about 1999 GMC Sierra 3500
Hello, I see that you are having a fuel problem on your 99 Sierra. It sounds as if the fuel pump screen has a restiction on the screen causing it not to be able to pull fresh fuel. Instead it is running out of fuel inside the fuel pump module and it will then start sucking in air. Since you will have to remove the fuel pump module if it has 100-150,000 miles on the fuel pump module you may want to just replace it, because that is about the average life span under normal conditions.
Posted on Feb 28, 2009
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