Hyundai Elantra
Petrol engines 1,6, 1,8 and 2,0 l
The diesel engine of 2,0 l
Greasing system
Cooling system
- Fuel system
   - Fuel system of petrol engines
      Search and elimination of malfunctions
      Check of frequency of rotation of idling
      Check of the fuel pump
      Replacement of the fuel filter
      Replacement of the terminator of overflow (the double-thread valve)
      Replacement of the gauge of level of fuel
      Checks of system of injection MFI
      Control lamp of malfunctions (MIL)
      Diagnostic codes of malfunctions
      Fuel atomizers
      The modulator of management of frequency of rotation of a cranked shaft of the engine idling (ISC)
      The gauge of speed of the car (VSS)
      The detonation gauge (KS)
      The ignition lock (ST) and the switch of ranges (TR) in cars with an automatic transmission
      The ignition lock (ST) in cars with a mechanical transmission
      The engine management block
      The switch and the relay of a central air of air
      The electromagnetic valve of clearing of the canister of system of catching of steams of fuel (EVAP)
      The main relay MFI
      The ignition coil
      The fuel pump
      The gauge of acceleration APS
      The oil valve (OCV)
      Fuel highway and atomizers
      Throttle knot
      Fuel tank
      Pedal and accelerator cable
    Fuel system of diesel engines
Monitoring systems and decrease in toxicity of the fulfilled gases
Ignition system
System of preliminary heating of the diesel engine
Mechanical transmission
Automatic transmission
Power shafts, forward and back axes
Suspension bracket
Brake system
Air central air
The electric equipment
Electric schemes

Check of the fuel pump


    Switch off ignition.
    Additional wires submit pressure to a socket of the fuel pump and check up, works or the pump does not work.

To hear the working fuel pump located in a fuel tank, remove a stopper with топливоналивной mouths.

    Press a hose of giving of fuel, whether to define creates pressure the fuel pump.

Check of the pressure created by the fuel pump


    . Remove a pillow of back sitting and remove the inspection panel of the fuel pump.
    For pressure removal in fuel system disconnect a socket of the fuel pump, start the engine and wait while it will not stop in connection with development of fuel from топливопроводов and a fuel highway.

Before separation топливопроводов remove pressure in fuel system, otherwise, the fuel which is under pressure, will intensively follow from fuel system.

    Disconnect a wire from the negative plug of the storage battery and connect a socket of the fuel pump.
    Connect to the fuel filter the manometre adapter (09353–24000, 09353–24100, 09353–38000) and tighten a bolt of fastening by the demanded moment. The inhaling moment: 25–35 Nm.
    Connect a wire to the negative plug of the storage battery. Additional wires submit pressure to a socket of the fuel pump and check up that there are no leaks of fuel from manometre connections. Start the engine and leave it to work on frequency of rotation of idling. Measure pressure of fuel. Pressure of fuel: 350 кПа. If the measurements executed in steps 7 and 8, do not correspond to demanded value of pressure of fuel, define the reason and execute necessary repair.
Plausible reason
Elimination method
Pressure of fuel too low a. The fuel filter is polluted. a. Replace the fuel filter.
b. Leaks from outside the fuel return, caused by bad consolidation of a regulator of pressure. b. Eliminate leak or replace the fuel pump
Pressure of fuel too high a. Залипание a regulator of pressure of fuel. a. Replace a pressure regulator.
    Stop the engine and through 5 mines on a manometre read value of pressure of fuel which should not change. If pressure of fuel has considerably decreased, define the reason and execute necessary repair.
Plausible reason
Elimination method
Pressure of fuel after an engine stop decreases slowly Негерметична a fuel atomizer Replace a fuel atomizer
Pressure of fuel after an engine stop decreases very quickly The control valve of the fuel pump is opened Replace the fuel pump
    Remove pressure in fuel system. Disconnect a hose and a manometre.

Close connection by a towel to exclude разбрызгивание the fuel, caused by residual pressure in топливопроводе.

    Replace a sealing ring on the hose end. Connect a hose to a fuel highway and tighten a connecting nut the demanded moment. Check up tightness of fuel system.