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Home >> Oldsmobile >> 1987 >> Calais FWD L4-151 2.5L >> Repair and Diagnosis >> Powertrain Management >> Fuel Delivery and Air Induction >> Fuel Pressure Regulator >> Service and Repair
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Fuel Pressure Regulator: Service and Repair


Model 700 TBI - Exploded View:




TBI Fuel Pressure Regulator Removal:







REMOVAL

1. Relieve fuel pressure.
2. Disconnect battery ground cable, then remove air cleaner assembly.
3. Remove pressure regulator attaching screws, while keeping the pressure regulator spring compressed by maintaining pressure on the pressure regulator cover.
4. Remove pressure regulator cover assembly which consists of: pressure regulator spring, spring seat, pressure regulator diaphragm assembly, and pressure regulator cover.
5. Inspect the pressure regulator valve seat for nicks, pitting, or irregularities. If damaged, replace fuel meter assembly.



INSTALLATION

1. Install new pressure regulator diaphragm assembly, making sure that it is seated in the groove in the fuel meter body.
2. Install regulator spring seat and spring into cover assembly.
3. Install pressure regulator cover assembly.
4. Replace regulator attaching screws coated with appropriate thread locking compound.

5. Tighten regulator attaching screws to 2.5 Nm (22 lb. in.).
6. Reconnect negative battery cable.
7. With engine OFF, and ignition ON, check for fuel leaks.
8. Replace air cleaner assembly or air duct.
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