OEM 2002 Buick Century Fuel Pressure Regulator

2002 Buick Century Fuel Pressure Regulator Parts and Q&A

• Q: How to service and repair the fuel pressure regulator on 2002 Buick Century?

  A: Before servicing the Fuel Pressure Regulator a fuel system pressure relief method should be performed first. The Fuel Pressure Regulator requires service by disconnecting the vacuum line before removing its retaining screw. A shop towel should be used to contain fuel droplets when you twist the Fuel Pressure Regulator away from the Fuel Rail to detach it. Please remove the retainer as well as the spacer bracket from the rail before extracting the Fuel Pressure Regulator from the engine fuel return pipe. Thoroughly dispose of the Fuel Pressure Regulator inlet o-ring together with the fuel return pipe o-ring. Check the filter screen for contamination because contaminated parts require replacement of the Fuel Pressure Regulator. The Fuel Pressure Regulator filter screen requires cleaning with gasoline when necessary however complete immersions in solvent baths or usage of compressed air for testing or cleaning will damage the regulator. Apply clean engine oil to the new pressure regulator inlet o-ring before installing it onto the regulator inlet and following this up by lubricating and installing the new fuel return pipe o-ring. Secure the regulator attaching screw before connecting the fuel return line because unscrewed movement could vandalize the retainer and spacer bracket leading to fuel leakage at the regulator inlet. Insert the new retainer and spacer bracket into the Fuel Rail slot before connecting the pressure regulator unit to the rail and torquing engine fuel return pipe to 17 n.m (13 lb ft). Use the Fuel Pressure Regulator vacuum line before threading and securing the regulator attaching screw at 8.5 n.m of torque (75 lb in). Use a hand to check that the retainer together with spacer bracket securely rests within the Fuel Rail slots before pulling on the regulator for proper installation verification. Finish the procedure by first connecting the negative Battery Cable then verify the fuel system for leaks by activating the ignition switch for two seconds before switching it off for ten seconds and finally activating it again for leak inspection.