GM 12247409
Pressure Sensor

Before replacing the Fuel Tank Pressure Sensor on the 2500 Series, professionals should first clean all fuel and evaporative emission (EVAP) line connections in addition to neighboring areas to avoid any form of contamination. The installation of the new fuel pressure sensor starts with disconnecting the intermediate fuel lines together with the EVAP lines. The fuel pressure sensor can be extracted safely by pulling it straight upward. The installation requires application of lubricating material to the new fuel pressure sensor before insertion into the line system. Reinstall the intermediate fuel line with the EVAP line after the completion. The procedures for Fuel Hose/Pipes Assembly Replacement must be used for all 1500 LWB - 117.3L (31 gal) Tank versions and 1500 SWB - 98.4L (26 gal) Tank versions including E85 variations.

The installation of the Fuel Tank pressure sensor requires starting with the removal of a 1500 swb with a 98.4l (26 Gal) tank operating on e85. The quick connect fitting of the evaporative emission line should disconnect from the vent valve then relocate the line from its path. Pull the Fuel Tank pressure sensor by straight pulling motion with precise rocking movements to extract it. The installation process starts by placing the new Fuel Tank pressure sensor in its designated position while using the evap line quick connect fitting to join the vent valve before reattaching the Fuel Tank.

The replacement of a Fuel Pressure Sensor requires first supporting the raised vehicle. The wiring harness electrical connector should be disconnected from the Fuel Pressure Sensor. Wrap a shop towel around the Fuel Pressure Sensor fitting next to catch leaking fuel before removing the sensor from the fuel line along with discarding the Fuel Pressure Sensor o-ring seal. Apply engine oil on the Fuel Pressure Sensor o-ring seal before mounting it to the fuel line fitting for installation. A shop towel should be used to protect the Fuel Pressure Sensor fitting by wrapping it, prepared to capture any leaking fuel. Position the Fuel Pressure Sensor to the fuel line before tightening it with a torque of 15 n.m (11 lb ft). Reconnect the wiring harness electrical connector of the chassis to the Fuel Pressure Sensor before lowering the vehicle. The inspection for fuel leaks begins by turning on the ignition key when the engine is off for 2 seconds followed by 10 seconds of ignition off then another 2 seconds of ignition on with engine off for visual inspection.

The first step to replace the Fuel Tank Pressure Sensor (2500 Series) involves cleaning all connections between fuel and evaporative emission (EVAP) lines in addition to the surrounding areas to avoid contaminating the system. You should detach the fuel pressure sensor by using prying motions straight up after removing intermediate fuel and EVAP lines. Pressurize the fuel pressure sensor's seal during installation before inserting it into its place then reinstall the intermediate fuel and EVAP lines.

The replacement process of the Fuel Tank Pressure Sensor requires removing the intermediate fuel and evaporative emission (EVAP) lines. The fuel pressure sensor can be removed by gentle upward prying. Exercise light oil on the sensor seal prior to setting it into position within the line then secure both the EVAP and intermediate fuel lines.

You should raise the vehicle while providing support for changing the Fuel Pressure Sensor. Disconnect the chassis wiring harness electrical connector from where it connects to the Fuel Pressure Sensor. The fitting of the Fuel Pressure Sensor requires absorption of leaking fuel using a shop towel before the removal of both the Fuel Pressure Sensor and its o-ring seal from the fuel line. Before installing the new sensor o-ring seal you need to apply clean engine oil followed by attaching it to the fuel line fitting. A shop towel should be wrapped around the Fuel Pressure Sensor fitting location before starting to catch possible fuel leakage. Place the Fuel Pressure Sensor onto the fuel line before tightening it to 15 n.m (11 lb ft). The wiring harness electrical connector from the chassis needs to be connected to the Fuel Pressure Sensor before lowering the vehicle. A leak inspection can be performed by enabling the ignition for two seconds with the motor turned off followed by turning off the ignition for ten seconds. When the ignition is on with the engine off users should verify the presence of fuel leaks.

Replacement of the Fuel Tank pressure sensor starts with removing the Fuel Tank through short wheel base or long wheel base procedures. The first step involves disconnecting the fuel sender wiring harness electrical connector from the Fuel Tank pressure sensor and after that removing the sensor itself. You should start the installation process by setting the new Fuel Tank pressure sensor in place then reattach the fuel sender wiring harness electrical connector to it. The installation of the Fuel Tank needs to be performed using the methods specified for the wheel base options.

The replacement process of the fuel pressure sensor starts by unattaching the intermediate fuel and evaporative emission (EVAP) lines. You should gently pry straight up to remove the fuel pressure sensor. Start by lubricating the seal of the fuel pressure sensor before pushing the sensor into position in the line when reattaching intermediate fuel and EVAP lines.

First, remove the fuel tank.

First, remove the fuel tank.

Remove the fuel tank.

Pull straight up on the fuel tank pressure sensor using a slight rocking motion.