Preliminary Checks

1996 Mercury Sable LS, 4D Sedan, 3.0 SSECTION Preliminary Checks

Ensure following systems and components are in good condition and operating properly before diagnosing problems in fuel injection system.

  • Check battery and charging system condition.
  • Check all wiring and vacuum connections.
  • Check air cleaner and ducting.
  • Check state of tune.
  • Check fuel delivery system.
  • Check cooling system.
  • Check inertia fuel shutoff switch.
  • Check for hydrostatic lock (liquid in cylinder).
  • Check fuel tank contents and fuel gauge accuracy.
  • Check for dirt, water or other contamination in fuel.
  • Check fuel lines and fittings for leaks.
  • Check fuel delivery system for proper pressure and volume.
  • Check for inoperative fuel injectors.
  • Check for improperly installed electronic equipment such as anti-theft system, CB radio, cellular telephone or stereo.
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.