OEM 2001 Cadillac DeVille Fuel Pressure Regulator

2001 Cadillac DeVille Fuel Pressure Regulator Parts and Q&A

• Q: How to replace the fuel pressure regulator on 2001 Cadillac DeVille?

  A: The first step for Fuel Pressure Regulator replacement starts with fuel pressure relief using the servicing process for quick connect fitting(s) (Metal Collar) followed by cleaning of the Fuel Pressure Regulator. Drain pressure from the Fuel Pressure Regulator before you detach its vacuum line and remove the clip retaining the installation. The procedure to disconnect the Fuel Pressure Regulator from the Fuel Rail requires twisting and lifting motions which must be accomplished using a shop towel to absorb fuel leaks. First disconnect the lower o-ring and the regulator assembly filter followed by the upper o-ring and the back up ring. For fuel system protection cover the Fuel Pressure Regulator housing while it remains open to air. You should install fresh o-rings onto the Fuel Pressure Regulator before rundown even though you are not swapping out the regulator itself. Use clean engine oil to moderately lubricate the new o-rings. Installation requires the back up ring, upper o-ring, filter, lower o-ring in that order followed by fixing the Fuel Pressure Regulator with the retainer clip and attaching the vacuum line. Reestablish the negative Battery Cable and verify the system has no leaks through an on-2-second and off-10-second and then on sequence followed by a leak inspection. Finish the process by installing the fuel injector sight shield.