1999 Isuzu Trooper Part TimeFACTORY OEM SERVICE PROCEDURE

Fuel Pump

FUEL PUMP PRESSURE

Application Pressure psi (kg/cm2 )
Amigo, Passport & Rodeo
2.2L 41-55 (2.9-3.9)
3.2L 48-55 (3.4-3.9)
Hombre
2.2L 41-47 (2.9-3.3)
4.3L 60-66 (4.2-4.6)
SLX, Trooper & VehiCROSS 42-55 (3.0-3.9)
Factory Service Tools

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When to See a Mechanic

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

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