1997 Geo Metro BaseFACTORY OEM SERVICE PROCEDURE

Fuel Pump

FUEL PUMP PERFORMANCE

KOEO (1) psi (kg/cm2 ) Eng. @ Idle psi (kg/cm2 ) (2) Hold Pressure psi (kg/cm2 )
23-31 (1.6-2.2) 13-20 (.9-1.4) 13 (.9)
(1) KOEO is ignition ON and engine OFF.
(2) Measured within 1 min. of engine OFF and w/ignition ON.
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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.