Fuel Pressure Regulator: Removal
- Remove fuel tank filler cap to relieve fuel tank pressure. Reinstall filler cap. Remove throttle body. Position throttle body on work bench with fuel pressure regulator facing upward. Remove 2 fuel pressure regulator mounting screws opposite of each other.
- Remove screw heads from 2 screws of same thread size that are 3" long. Use these screws as alignment dowels for removing and installing fuel pressure regulator. Install dowels into bolt holes.
- Pressure regulator is spring loaded. Hold casing down when removing screws. Remove casing, steel ball, top spring guide, large spring, diaphragm, small spring guide and small spring. See Fig 1
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Courtesy of CHRYSLER MOTORS.
- Diaphragm has a top and bottom side. Top side has a wide spring seat while bottom side has a narrower but taller spring seat.