OEM Chevrolet Impala Fuel Pressure Regulator

Chevrolet Impala Fuel Pressure Regulator Parts and Q&A

• Fuel Pressure Regulator
  19245529
  Q: How to replace the fuel pressure regulator on Chevrolet Impala?

  A:

  Before starting Fuel Pressure Regulator replacement the driver must first discharge fuel system pressure. First disconnect the vacuum line of the Fuel Pressure Regulator and then undo its retaining screw. Yank the Fuel Pressure Regulator from the Fuel Rail after lifting it and twisting it while keeping all spilled fuel contained with a shop towel. Extract the retainer and spacer bracket and next separate the Fuel Pressure Regulator from its place on the engine fuel return pipe for discard of its inlet o-ring. You should install the fuel return line first before installation because this prevents rotating movement which could harm the retainer and spacer bracket and lead to fuel leakage. A compressed air blast should never be used on the Fuel Pressure Regulator since it creates the danger of destroying it. The screen filter requires gasoline cleaning but the regulator cannot come in contact with solvent baths. When inspecting the filter screen for pollutants find replacements for the Fuel Pressure Regulator if required. Suffuse the new inlet o-ring with pure engine oil before setting it to the regulator source. The new retainer and spacer bracket should be positioned in the slots of the Fuel Rail after attaching the fuel return pipe to the regulator. When installing the pressure regulator onto the Fuel Rail torque the engine fuel return pipe nut to 17 n.m (13 lb ft). Secure the vacuum line through an attaching screw which you should tighten to 8.5 n.m (76 lb in). Confirm proper seat of the regulator by pulling on the unit while checking that retainer and spacer bracket securely position themselves in the Fuel Rail slots. Using the same procedure as above but instead of on and off you will inspect for leaks. First, turn the switch on then switch it off followed by another on to check for fuel leakage.
• Fuel Pressure Regulator
  17113622
  Q: How to service the fuel pressure regulator on 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.