OEM 2002 Cadillac DeVille Fuel Pressure Regulator

2002 Cadillac DeVille Fuel Pressure Regulator Parts Questions & Experts Answers

• Q: How to service and repair the fuel pressure regulator on 2002 Cadillac DeVille?

  A: You must decrease the fuel pressure using the procedure for the quick connect fitting(s) service (Metal Collar). Vacuum line detachment comes after you clean away dirt from the Fuel Pressure Regulator. Free the retainer clip first and twist and lift the Fuel Pressure Regulator off the Fuel Rail while using a shop towel to absorb fuel spillage. The service operation starts with removing the lower o-ring and then the regulator assembly filter before removing the upper o-ring and the back up ring. An open Fuel Pressure Regulator housing requires wrapping to stop contaminant entry into the fuel system. Before installing the regulator use new o-rings treated with small amounts of clean engine oil. Place the back up ring first then install the upper o-ring and filter together with the lower o-ring before putting the retainer clip into position. Attach the negative Battery Cable and vacuum line. The fuel leak inspection process begins by turning on the ignition when the engine is off for 2 seconds, then the ignition is switched off for 10 seconds until another on ignition with the engine stopped allows leak examination. Place the fuel injector sight shield as the last step.