What is the fuel pressure for 1999 Chevy 5.7L?
The fuel pressure for a 1999 Chevy 5.7L engine (likely a Vortec) should be between 58 and 62 psi (pounds per square inch). This is at idle and with the engine running. Always consult your vehicle's repair manual for the most accurate specifications. Slight variations are possible depending on engine temperature and other factors.