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Home >> Ford >> 1990 >> Bronco II RWD, Standard, M5OD-R1 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Basic Diagnostic Procedures >> Fuel Pressure Check >> Inertia Switch
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Inertia Switch

  1. 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. Engine will stop due to lack of fuel.
  2. It is not possible to restart engine until inertia switch is manually reset, which is accomplished by depressing the switch button. See INERTIA SWITCH LOCATION  .
INERTIA SWITCH LOCATION

Application Location
Aerostar On right kick panel, adjacent to front passenger's seat
Bronco II & Ranger On floor board, right of transmission hump
Bronco & "F" Series On left kick panel, near emergency brake pedal
"E" Series Passenger's side cowl panel
CAUTION: DO NOT reset inertia switch until fuel system has been inspected for damage.