Grand Cherokee 4WD V8-5.2L VIN Y (1998)
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Fuel Pressure: Pressure, Vacuum and Temperature Specifications
Fuel Pressure
Engine at curb idle .......................................................................................................................................................... 339 kPa ± 34 kPa (49.2 psi ± 5 psi)
Pressure Leakdown (fuel pump not engaged) ................................................................................................................. Not fall below 30 psi for 5 minutes