'99 5.3L fuel return line?

Discussion in 'Chevy Silverado Forum (GMC Sierra)' started by FergusonT, Dec 17, 2012.

  1. FergusonT

    FergusonT Rockstar 4 Years 100 Posts

    Which line coming off the fuel rail on the '99 5.3 is the return line? They look identical and I need to clamp the return off for a pressure test.

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