1987 Pontiac Fiero Base, Standard, MG3FACTORY OEM SERVICE PROCEDURE

Fuel Pump: Testing: Notes

If a malfunction is diagnosed as fuel system related, perform the following tests and inspections prior to replacing fuel pump.

CAUTION: Electric fuel pump systems are under constant pressure. The pressure must be released BEFORE any part of fuel system is disconnected. To relieve pressure, remove fuel pump fuse and run engine until it stops.
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

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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.

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