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Title: I have gas...but not enough pressure.
Review: The description on the packaging says "works with GM domestic most Multi-Port Fuel Injected Vehicles 1984 to 1996" but it did work with my 1999 GMC Sierra 1500 4.8L. Clearly my pressure is too low. Looks like I am going to need a new fuel pump! FYI...the fuel pressure tester port on these GMC Sierras is on the passenger side crossover to the fuel rail.Went on easily. Make certain you put a rag underneath port and have cup or container to catch fuel from clear plastic hose.
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