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HOMESERVICE MANUALSSUZUKI2001ESTEEM GLX, 4D SEDAN, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMENGINE CONTROLS - BASIC DIAGNOSTIC PROCEDURESFUEL SYSTEMFUEL PRESSUREFUEL PRESSURE TEST
2001 Suzuki Esteem GLX, 4D Sedan, Standard

Fuel Pressure Test

2001 Suzuki Esteem GLX, 4D Sedan, StandardSECTION Fuel Pressure Test
  1. Release fuel system pressure. See RELIEVING FUEL PRESSURE  . Remove fuel inlet hose banjo bolt. Install fuel pressure adapter and gauge in banjo bolt hole. See Fig 1 .
    Fig 1: Testing Fuel System Pressure (Esteem Shown; Others Are Similar)
    G95G32363Courtesy of SUZUKI OF AMERICA CORP.
  2. Verify battery voltage is 11 volts or greater. Turn ignition on to operate fuel pump for 3 seconds. Turn ignition off. Repeat 3-4 times, and check fuel pressure. See FUEL PUMP PERFORMANCE  table. Start engine and allow it to reach normal operating temperature. Measure fuel pressure at idle. See REGULATED FUEL PRESSURE  table. Turn ignition off.
  3. If pressures are not within specification, check for faulty fuel pump, pressure regulator or restriction in fuel system. See CIRCUIT TEST B-3: FUEL PRESSURE INSPECTION  under CIRCUIT TESTS. Repair as necessary. Release fuel pressure and remove fuel pressure gauge. Reinstall fuel inlet hose. Start engine. Ensure no fuel leaks are present.
FUEL PUMP PERFORMANCE

Application (1) psi (kg/cm2 )
Esteem, Swift, Grand Vitara & XL-7 (2) 38.4-44.0 (2.7-3.1)
Vitara (3) 35.6-42.7 (2.5-3.0)
(1) Key on and engine off.
(2) Pressure should maintain at least 28.4 psi (2.0 kg/cm2 ) for one minute after fuel pump is turned off.
(3) Pressure should maintain at least 25.6 psi (1.8 kg/cm2 ) for one minute after fuel pump is turned off.
REGULATED FUEL PRESSURE

Application (1) psi (kg/cm2 )
Esteem (1.6L) & Swift (2) 28.4-34.1 (2.0-2.4)
Esteem (1.8L) & Vitara (3) 30.0-37.0 (2.1-2.6)
Grand Vitara & XL-7 (2) 29.8-37.0 (2.2-2.6)
(1) With engine idling.
(2) Pressure should maintain at least 28.4 psi (2.0 kg/cm2 ) for one minute after fuel pump is turned off.
(3) Pressure should maintain at least 25.6 psi (1.8 kg/cm2 ) for one minute after fuel pump is turned off.
RENDER: 1.0x

NO RELATED

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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.