OEM 2005 Buick Century Fuel Pressure Regulator

2005 Buick Century Fuel Pressure Regulator Parts Questions & Experts Answers

• Q: How to replace the fuel pressure regulator on 2005 Buick Century?

  A: The replacement of the Fuel Pressure Regulator requires first draining pressure from the fuel system. Remove the Fuel Pressure Regulator vacuum line before you disconnect the fuel return pipe from the regulator as well as the Fuel Pressure Regulator screw. The Fuel Pressure Regulator removal requires a shop towel to collect any leaked fuel while the regulator is gently twisted against the Fuel Rail. First remove the retention components from the Fuel Rail before discarding them alongside the inlet o-ring and the return pipe o-ring of the Fuel Pressure Regulator. Check the filter screen for signs of contamination because Fuel Pressure Regulator replacement may be needed in that case. New o-rings should get engine oil lubrication before insertion on the Fuel Pressure Regulator. Cleansing or testing the Fuel Pressure Regulator with compressed air leads to damage to the unit. The filter screen should be cleaned with gasoline but the Fuel Pressure Regulator should always remain dry when using this solution. Attach the fuel return pipe to the Fuel Pressure Regulator while keeping it in proper position before tightening the regulator attaching screw to prevent fuel leaks from damaged retainer and spacer bracket. The new retainer and spacer bracket should be installed to the Fuel Rail slot afterward install the Fuel Pressure Regulator by securing it with the Fuel Pressure Regulator screw. You should tighten the engine fuel return pipe nut to 17 n.m (13 lb ft) and the Fuel Pressure Regulator screw to 8.5 n.m (75 lb in). Following the vacuum line reconnection the technician should inspect that the retainer and spacer bracket fits into Fuel Rail slots by applying force down on the regulator. To finish the task connect the negative Battery Cable while checking for fuel leaks by turning the ignition switch on for 2 seconds, off for 10 seconds, then on again and doing a complete evaluation for any fuel leakage.