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Fuel Pressure drops quickly after pump cuts out
2003 Yukon 5.3 flex fuel started not starting on first attempt. rented pressure gauge from autozone and noticed that fuel press initially goes to 52 psi when key is turned and quickly bleeds down to 0 psi if not started. when engine is running it holds a steady 44 psi. Has to be the fuel...- nitefr8r
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- Forum: Engine & Drivetrain
