Fuel Pump On-Vehicle Inspection

WARNING: Before starting the following procedure, be sure to observe Precautions on Fuel System Service in order to reduce the risk of fire and personal injury.

NOTE: The fuel pressure regulator is incorporated with the fuel pump assembly so individual inspection of it is impossible.

Remove filler cap and turn ON ignition switch (2). Then fuel pump operating sound should be heard from fuel filler (1) for about 2 seconds and stop. Be sure to reinstall fuel filler cap after checking.
If the check result is not satisfactory, go to FUEL PUMP AND ITS CIRCUIT CHECK .

Fig 1: Identifying Ignition Switch ON Position
Courtesy of SUZUKI OF AMERICA CORP.
Turn OFF ignition switch and leave over 10 minutes as it is.
Fuel pressure should be felt at fuel feed hose (1) for about 2 seconds after ignition switch ON.
If fuel pressure is not felt, go to FUEL PRESSURE CHECK .

Fig 2: Identifying Fuel Feed Hose
Courtesy of SUZUKI OF AMERICA CORP.