OEM 2000 Chevrolet Impala Fuel Pressure Regulator

2000 Chevrolet Impala Fuel Pressure Regulator Parts Questions & Experts Answers

• Q: How to service the fuel pressure regulator on 2000 Chevrolet Impala?

  A: The first step for Fuel Pressure Regulator service requires fuel system pressure relief. Start by disconnecting the Fuel Pressure Regulator vacuum line and subsequent removal of its retaining screw. The Fuel Pressure Regulator needs to be lifted and twisted to detach it from the Fuel Rail after you place a shop towel under it to avoid fuel spillage. The spacer bracket and retainer should be discarded before the Fuel Pressure Regulator is detached from the engine fuel return pipe. After removal discard the inlet 0-ring. Ensure the fuel return line installation occurs prior to regulator installation because rotating motion could harm both the retainer and spacer bracket leading to fuel leakage. Testing and cleaning the Fuel Pressure Regulator through compressed air use leads to destructive consequences. It is possible to use gasoline for cleaning the filter screen yet the pressure regulator should never become submerged in any solvent bath. Inspect the filter screen to identify any signs of contamination because its replacement indicates the need for a new Fuel Pressure Regulator. The new pressure regulator requires engine oil lubrication before insertion at the regulator inlet opening. Position the fuel return pipe back on the regulator before installing both the retainer and spacer bracket into the slot of the Fuel Rail. After installing the pressure regulator on the Fuel Rail tighten the engine fuel return pipe nut to 17 n.m (13 lb ft). Plug and secure the vacuum line to the Fuel Pressure Regulator while tightening its attaching screw to 8.5 n.m (76 lb in). Check for proper seat of the retainer and spacer bracket by holding the regulator and pulling it through the Fuel Rail slots. Verything else in place reinstall the fuel filler cap while reconnecting the negative Battery Cable. The inspection of the fuel system requires turning the ignition on for two seconds and off for ten seconds before re-turning on to detect fuel leaks.