The IPR (Injection Pressure Regulator) Is Located On The High Pressure Oil Pump.The IPR Valve O-Rings Are A Common Failure Point. Injector Pressure Regulator Valve Socket Removal Tool and Seal Kit 6.0 IPR Valve Socket with Seal Kit Compatible with 2003-2010 Ford 6.0L Powerstroke Excursion F250 F350 F450 F550 E350 E450.
