Sable V6-232 3.8L (1988)
Fuel Pump Inertia Switch: Description and Operation
Inertia Fuel Shutoff (IFS) Switch
In the event of a collision, the electrical contacts in the inertia fuel shutoff switch (IFS switch) open and the fuel pump automatically shuts off.
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The fuel pump will shut off even if the engine does not stop running. However, the engine will stop a few seconds after the fuel pump stops.
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It is not possible to restart the engine until the inertia fuel shutoff switch is manually reset.
Caution: Do not reset the inertia fuel shutoff switch until the fuel system has been inspected for leaks.
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To reset the inertia fuel shutoff switch, press the button on top of switch.
Note: In the reset position it is possible to force the button down an additional 1.59 mm (1/16 inch) against a spring load.
This is a normal condition.
