2004 kia sorento fuel level gauge cluster

2022-05-13

The MPI engine of Sorento model applies the non return fuel supply system. The fuel pump, fuel pressure regulator, fuel filter and fuel position sensor are combined into an integral assembly and installed in the fuel tank. The fuel tank of the second generation Sorento (produced in 2009-2012) is designed into a saddle shape. The fuel tank is divided into the left fuel tank and the right fuel tank. The fuel pump assembly is installed in the left fuel tank. In order to keep the liquid level of the fuel tanks on both sides consistent and ensure that the fuel in the right fuel tank runs out before that in the left fuel tank, a suction pump is installed in the right fuel tank to deliver fuel to the left fuel tank, During the operation of the fuel pump, the siphon pump on the fuel pressure regulator is used to produce siphon effect, which causes the fuel from the right fuel tank to be pumped to the left fuel tank

For 2004 kia sorento fuel level gauge cluster maintenance system: Fuel pressure test

1. Release the residual fuel pressure in the fuel pipeline. Turn the ignition switch to the off position, disconnect the negative pole of the battery, then remove the fuel pump fuse or fuel pump relay, connect the negative pole of the battery, start the engine and idle it until the engine stops running by itself. At this time, turn off the ignition switch to the off position.

2. Install professional fuel pressure gauge. Separate the fuel supply pipe from the fuel rail and install a fuel pressure gauge between the fuel rail and the fuel supply pipe. Note: as there is still residual fuel pressure in the fuel pipe, a rag should be used to cover the fuel rail interface when separating the fuel supply pipe to prevent fuel splashing.

3. Turn the ignition switch to the on position and check whether there is fuel leakage at the interface between the fuel supply pipe, fuel rail and fuel pressure gauge.

4. Measure the fuel pressure. Start the engine and measure whether the fuel pressure at idle speed is between 324 ~ 363kpa. When the measured value is inconsistent with the standard value, repair or replace the relevant components. If the pressure is too low, it may be the blockage of the fuel filter or the leakage of the fuel pump assembly. If the pressure is too high, it may be the failure of the pressure regulator. Stop the engine and check the pressure holding of the fuel pressure for about 10min. Check the change of the pressure. If the pressure drops slowly, the possible cause is the leakage of the fuel injector. If the pressure drops rapidly, the possible cause is the fuel pump.

5. Turn the ignition switch to off position and release the residual fuel pressure in the fuel pipeline (the same as step 1).

6. End of test: remove the fuel pressure gauge from the fuel pipeline