OEM 2009 Chevrolet Cobalt Fuel Pressure Sensor

2009 Chevrolet Cobalt Fuel Pressure Sensor Parts and Q&A

• Q: How to replace the fuel injection fuel rail fuel pressure sensor on 2009 Chevrolet Cobalt?

  A: The procedure to change the fuel injection Fuel Rail Fuel Pressure Sensor starts by using an appropriate method to pat the high side fuel system pressure. The first step includes disconnecting the fuel injector wiring harness electrical connector from the fuel injection Fuel Rail Fuel Pressure Sensor but avoiding any movements of the foam insulator to prevent damage. Use a 27 mm socket inserted through the foam insulator access point to grasp the fuel injection Fuel Rail Fuel Pressure Sensor but apply pressure only on the hexagonal mount to protect the sensor. Install a shop towel under the sensor position before you pull out and dispose of the exhausted sensor to allow fuel to drain. Inspection of the Fuel Rail sealing cone requires drying it first before checking for any residue or dirt. Apply silicon-free engine oil gm p/n 12345610 (Canadian P/N 993193) equivalent to lubricate the threads and sealing cone of the Fuel Rail as well as the new fuel injection Fuel Rail Fuel Pressure Sensor. Before final tightening to 33 nm (25 lb ft), hand tighten the new sensor then remove it followed by a lubrication procedure of reinstallation. After installing the new high-pressure fuel line the technician should connect the fuel injector wiring harness electrical connector and place the new low side fuel pressure service port cap. Check for fuel leaks by first placing a paper towel between the sensor and generator then start the vehicle for five minutes before cessation to evaluate the towel for fluid presence. Repetition of this series of steps is needed when wetting is identified.