Genuine Cadillac Escalade Fuel Pressure Sensor

Cadillac Escalade Fuel Pressure Sensor Parts Questions & Answers

• Sensor Assembly, Fuel Tank Pressure
  13502903
  Q: How to remove and install a fuel pressure sensor and high-pressure fuel pump on Cadillac Escalade?

  A: Remove the engine covers. Relieve the fuel system pressure. Disconnect the cable from the negative battery terminal. Remove the intake manifold and the fuel pump/fuel rail insulator. The fuel rail fuel pressure sensor is located at the rear of the left-side fuel rail. Disconnect the fuel pressure sensor electrical connector. Unscrew and remove the sensor from the end of the fuel rail. Clean the threads in the fuel rail of any gasoline. Apply a single drop of oil on the new sensor threads, then install the sensor and hand tighten it. Remove the sensor, apply another drop of clean engine oil on the threads, then reinstall the sensor and tighten it. Connect the sensor electrical connector. The remaining installation steps are the reverse of the removal process. Remove the low-pressure fuel feed line bracket bolt and disconnect the feed line at the pump. Using a flare-nut wrench, unscrew the high-pressure line fittings between the fuel rail and fuel pump and discard the pipe as a new one must be used. Disconnect the electrical connector from the high-pressure fuel pump. Remove the high-pressure fuel pump bolts, then remove the cover, pump, and gasket. Always replace the bolts and pump gasket with new ones. With the pump removed, rotate the engine by hand and ensure that the camshaft lobe is at its base circle (lowest point) before attempting to install the pump. Lubricate the pump roller with engine oil. Using a NEW gasket, position the pump and cover onto the valley cover and tighten the bolts evenly, one turn at a time, from side to side. Tighten the bolts. The remaining installation steps are the reverse of the removal process. Clean the high-pressure fuel line fittings on the pump and crossover pipe, then apply a drop of clean engine oil to the threads of each fitting. Install the NEW high-pressure fuel line, tightening the fittings to the torque specified in the Specifications. The remaining installation steps are the reverse of the removal procedure. Reconnect the cable to the negative battery terminal, then start the engine and check for fuel leaks.
• Sensor Assembly, Fuel Injection Fuel Rail Fuel Pressure
  12673824
  Q: How to replace the fuel pressure sensor and fuel pump flow control module for Cadillac Escalade?

  A: The fuel pressure sensor is located under the vehicle, on the fuel supply line. To replace it, first relieve the system fuel pressure. Then, raise the vehicle and support it securely on jackstands. Disconnect the electrical connector from the fuel pressure sensor by depressing the release tab. To remove the sensor from the fuel supply line, hold the flats on the fuel line with a wrench to prevent twisting the line, then unscrew the sensor. Unscrew the fuel pressure sensor from the fuel supply line. Remove and discard the old fuel pressure sensor O-ring. Coat a new O-ring with a little clean engine oil, then install it on the fuel pressure sensor. Installation is otherwise the reverse of removal. Be sure to tighten the fuel pressure sensor securely. Before lowering the vehicle, test for leaks by turning the ignition switch key to the ON position (don't start the engine) for two seconds, then to the OFF position for ten seconds, then back to the ON position. Inspect the area around the fuel pressure sensor for leaks. The Fuel Pump Driver Module (FPDM), also referred to as the Fuel Pump Power Control Module, is located under the vehicle, above the spare tire. Remove the spare tire from the vehicle. Raise the rear of the vehicle and support it securely on jackstands. Remove the spare tire. Disconnect the electrical connector from the FPDM. Remove the FPDM mounting bolts and remove the module from its mounting bracket. Installation is the reverse of removal.