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HOMESERVICE MANUALSSUZUKI2013SX4 CROSSOVER, AUTOMATIC CVT TRANSREPAIR AND DIAGNOSISENGINE PERFORMANCEFUEL DELIVERYFUEL SYSTEMDIAGNOSTIC INFORMATION AND PROCEDURESFUEL PRESSURE BASIC CHECK
2013 Suzuki SX4 Crossover, Automatic CVT Trans

Fuel Pressure Basic Check

2013 Suzuki SX4 Crossover, Automatic CVT TransSECTION Fuel Pressure Basic Check
WARNING: When performing the following procedure, be sure to observe Precautions on Fuel System Service  and PRECAUTIONS FOR ENGINE to reduce the risk of fire and personal injury.
  1. Relieve fuel pressure in fuel feed line. See Fuel Pressure Relief Procedure 
  2. Disconnect fuel feed hose from fuel delivery pipe.
  3. Connect special tools and hose between fuel feed hose (1) and fuel delivery pipe as shown in figure, and clamp hoses securely in order to ensure that no leaks occur during checking.

    Special Tool 

    1. 09912-58442 
    2. 09912-58432 
    3. 09912-58490 
      Fig 1: Checking Fuel Pressure Basic
      G06867164Courtesy of SUZUKI OF AMERICA CORP.
  4. Check that battery voltage is 11 V or more.
  5. Measure fuel pressure as follows.

    If measured pressure is out of specification, repair or replace defective part.

    1. Turn ignition switch to ON position to operate fuel pump.
    2. After 2 sec., turn it OFF.
    3. Repeat Step  a) and  b) three or four times, and then check fuel pressure.

      Fuel pressure specification 

      Standard: 360 - 400 kPa (3.7 - 4.1 kgf/cm 2  , 52.2 - 58.0 psi) (With fuel pump operating and engine stopped) 

    4. Warm up engine to normal operating temperature, and measure fuel pressure at idling.

      Fuel pressure specification 

      At specified idle speed: 360 - 400 kPa (3.7 - 4.1 kgf/cm 2  , 52.2 - 58.0 psi) 

    5. Stop engine, and measure fuel pressure at one minute after stopping.

      Fuel pressure specification 

      With 1 min. after engine (fuel pump) stop (Pressure reduces as time passes): Over 250 kPa (2.5 kgf/cm 2  , 36.3 psi) 

  6. Relieve fuel pressure. See Fuel Pressure Relief Procedure 
  7. Remove special tools from fuel delivery pipe and fuel feed hose.
  8. Connect fuel feed hose to fuel delivery pipe and clamp it securely.
  9. With engine stationary and ignition switch in ON position, check for fuel leaks. See Fuel Leakage Check Procedure 
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.