Inertia Switch Test

1985 Ford Ranger 2.8 S, RWD, AutomaticSECTION Inertia Switch Test
CAUTION: DO NOT  reset the inertia switch until the complete fuel system has been inspected for leaks.

In event of a collision, electrical contacts in inertia switch open and fuel pump automatically shuts off. Fuel pump will shut off even if engine does not stop running. The engine, however, will stop a few seconds after fuel pump stops. It is not possible to restart engine until inertia switch is manually reset. Inertia switch is located behind instrument panel. To reset inertia switch, depress button on top of switch.

RENDER: 1.0x

NO RELATED

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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.