Genuine Cadillac Escalade Fuel Pump

Cadillac Escalade Fuel Pump Parts Questions & Answers

• Fuel Tank Fuel Pump Module Kit (W/O Fuel Level Sensor)
  13512935
  Q: How to remove and install a fuel pump module for Cadillac Escalade?

  A: Relieve the system fuel pressure. Disconnect the cable from the negative battery terminal. Remove the Fuel Tank. Clean the top of the fuel pump module. Disconnect the quick-connect fittings from the fuel pump module. Note the orientation of the pump mounting flange and mark the orientation of the fuel pump in relation to the fuel tank to ensure that the fuel pump is correctly realigned when you install it again. If you're going to install a new pump, note the location of your alignment mark on the old pump and make a mark at the same spot on the new unit. Using a pair of large water pump pliers, unscrew the fuel pump module lock ring by turning it counterclockwise. If the lock ring is tight or pliers will not work, use a hammer and a brass punch to loosen it. Remove the pump assembly, taking care not to damage the fuel level sensor float arm and float. Before installing the pump, inspect the O-ring for cracks, tears, and deterioration. If it isn't in perfect condition, replace it. The float arm may need to be installed onto the new fuel pump module. Note the installed position of the float arm on the old module and snap the float arm onto the new module in the same position. Insert the fuel pump/fuel level sensor module into the fuel tank, align the mark that you made on the fuel pump/fuel level sending unit flange with the mark you made on the tank, and carefully seat the pump flange on the tank. Make sure that you don't damage the float arm or the float during installation. If the float arm is bent, the fuel level that is indicated on the fuel level gauge on the instrument cluster will be incorrect. Remaining installation is reverse of removal.
• Fuel Tank Fuel Pump Module Kit (W/O Fuel Level Sensor)
  13512935
  Q: How to check the operation of the fuel pump?

  A: First of all, to test the fuel pump, turn the ignition key to ON and listen for a whirring sound. If not heard, check the fuel pump fuse, relay, and wiring. If these are fine, the pump may be damaged. If the pump runs continuously, the PCM could be faulty.
• Fuel Tank Fuel Pump Module Kit (W/O Fuel Level Se
  13512934
  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.