1 - Fuel Pump Operational Test

2000 Saturn SL2 Automatic, MP6SECTION 1 - Fuel Pump Operational Test
CAUTION: WHENEVER FUEL LINE FITTINGS ARE LOOSENED OR REMOVED, WRAP A SHOP CLOTH AROUND THE FITTING AND HAVE AN APPROVED CONTAINER AVAILABLE TO COLLECT ANY FUEL.

If the vehicle is not operating or will not start or run, then a determination must be made if the fuel pump is working and fuel under pressure is being delivered to the fuel rail.

  1. Remove cap on fuel pressure test port at fuel rail and slightly depress tip of Schrader valve. Note whether fuel is present.
  2. If fuel, under pressure, is present proceed to test 2 - FUEL SYSTEM PRESSURE TESTΒ .
  3. If no fuel present, assure that there is fuel in tank (check fuel gauge).
  4. Evaluate fuel pump electrical circuit. Refer to ENGINE CRANKS BUT WON'T START in ENGINE CONTROLS .
RENDER: 1.0x

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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.