Chevrolet 13500744 Sensor Assembly, Fuel Pressure

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Disconnect the electrical connector from the sensor and unscrew the sensor from the fuel rail.

Unscrew the bolt and remove the purge valve from the upper intake manifold.

You should tighten the fuel pressure sensor securely.

Component replacement procedures involve disconnecting quick-connect fittings, cleaning the area, and removing mounting bolts, hoses, and electrical connectors.

To replace the fuel pump flow control module, you need to disconnect the electrical connector and remove the three mounting bolts before removing the module from its bracket.

After tightening the fuel pressure sensor, you should test for leaks before lowering the vehicle.

To remove the fuel pressure sensor from the fuel supply line, you need to unscrew it.

Disconnect the hose from the EVAP purge control solenoid valve.

The fuel evaporative emissions control (EVAP) system plays a vital role in managing fuel vapors from the fuel tank, releasing them into the engine intake system during engine operation. Key components include the canister, which contains activated charcoal to absorb fuel vapors, the purge valve, vent valve, fuel tank pressure sensor, fuel tank, and various vapor and purge lines. Fuel tank vapor, after passing through a check valve, is directed to the charcoal canister, where the charcoal absorbs and stores the vapors. The PCM (Powertrain Control Module) opens the purge and vent valves under specific conditions, allowing fuel vapors from the canister to be drawn into the intake manifold and combustion chamber for consumption. The PCM regulates the vapor flow rate through the EVAP purge valve control solenoid, cycling it on and off, optimizing purge based on engine conditions. During cold start-up, the system performs a self-diagnostic check, creating a vacuum in the EVAP system to detect leaks, and the PCM monitors the fuel tank pressure sensor voltage for potential issues. The fuel tank pressure sensor, similar to a MAP sensor, supplies a signal voltage to the PCM that corresponds to the air pressure within the fuel tank. Component replacement procedures involve disconnecting quick-connect fittings, cleaning the area, and removing mounting bolts, hoses, and electrical connectors. The EVAP canister, purge valve, vent valve, and fuel tank pressure sensor can be replaced following specific removal and installation steps. It's important to note that the evaporative emissions control system is protected by a federally-mandated warranty.

After tightening the fuel pressure sensor, you should test for leaks before lowering the vehicle.

Disconnect the electrical connector from the sensor and unscrew the sensor from the fuel rail.

To install the sensor, simply reverse the removal steps and tighten it to the specified torque.

Disconnect the electrical connector from the EVAP purge control solenoid valve, which is located on the top of the intake manifold, next to the throttle body.

After tightening the fuel pressure sensor, you should test for leaks before lowering the vehicle.