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How much fuel pressure on 2000 Chevy 5.3?

The fuel pressure for a 2000 Chevy 5.3L engine should be between 55-62 PSI (pounds per square inch). This is measured with the engine running. Keep in mind that this is a general range, and slight variations are possible depending on specific engine conditions and the testing method. Always consult your vehicle's repair manual for the most accurate specifications.