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Fuel Pressure Regulator: Installation

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  1. To install, reverse removal procedure using NEW "O" ring. Coat "O" ring with gasoline before installing fuel pressure regulator on fuel rail. Use twisting motion when installing fuel pressure regulator on fuel rail.
  2. Tighten fuel pressure regulator bolts to specification. See TORQUE SPECIFICATIONS . Operate fuel pump and check for fuel leaks. See FUEL PUMP OPERATION under FUEL SYSTEM in BASIC DIAGNOSTIC PROCEDURES - V6 & V8 article.


  1. To install, reverse removal procedure using NEW "O" ring and gaskets. Coat "O" ring with gasoline before installing fuel pressure regulator on fuel rail.
  2. Ensure fuel pressure regulator rotates smoothly on fuel rail after installation to verify proper installation of "O" ring. If fuel pressure regulator fails to rotate smoothly, check for improper "O" ring installation.
  3. Tighten bolts/nuts to specification. See TORQUE SPECIFICATIONS . Operate fuel pump and check for fuel leaks. See FUEL PUMP OPERATION under FUEL SYSTEMS in BASIC DIAGNOSTIC PROCEDURES - V6 & V8 article.
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