Fuel Pump On-Vehicle Inspection

CAUTION: When fuel filler cap is removed in any procedure, work must be done in a well-ventilated area, keep away from any open flames and without smoking.

Remove filler cap and turn ON ignition switch (2). Then fuel pump operating sound should be heard from fuel filler (1) for about 3 seconds and stop. Be sure to reinstall fuel filler cap after checking.
If above check result is not satisfactory, advance to FUEL PUMP CIRCUIT CHECK under H25 ENGINE (Grand Vitara) or FUEL PUMP CIRCUIT INSPECTION under H27 ENGINE (XL-7).

Fig 1: Checking For Fuel Pump Operating Sound
Courtesy of SUZUKI OF AMERICA CORP.
Fuel pressure should be felt at fuel return hose (1) for 3 seconds after ignition switch ON.
If fuel pressure is not felt, advance to FUEL PUMP CIRCUIT CHECK under H25 ENGINE (Grand Vitara) or FUEL PUMP CIRCUIT INSPECTION under H27 ENGINE (XL-7).

Fig 2: Feeling For Fuel Pressure At Fuel Return Hose

Courtesy of SUZUKI OF AMERICA CORP.