This Terminal Release Tool is required for removal of the vehicle"s injector wiring harness without causing damage to the component. OTC offers a new selection of service tools for Aftermarket professionals who service the Navistar 6.0L Diesel Engine found in many Ford "Power Stroke" platforms (2003 to 2007). Drivability issues comillimeteronly point to the Injector Pressure Regulator (IPR) and OTC has the timesaving tools you need to efficiently perform this service and get your customer’s vehicle back on the road.