Mechanics

RELY SWITCH FOR FUEL PUMP

1996 Ford Thunderbird

Electrical problem
1996 Ford Thunderbird 6 cyl Two Wheel Drive Automatic 120000 miles

Where is the relay switch should be located in trunk of car
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Dorzine1
January 2, 2009.



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The inertia fuel shutoff switch is located on the LH side lower back panel in the luggage compartment.


http://www.2carpros.com/forum/automotive_pictures/248015_2_90.jpg



Description
The inertia fuel shutoff switch: is used in conjunction with an electric fuel pump.
shuts off the fuel pump in the event of a collision.
consists of a steel ball held in place by a magnet.
Operation
When a sharp impact occurs: the ball breaks loose from the magnet, rolls up a ramp and strikes a target plate which opens the electrical contacts of the inertia fuel shutoff switch and shuts off the fuel pump.
Once the inertia fuel shutoff switch is open, the inertia fuel shutoff switch must be manually reset before restarting the vehicle.
If a collision occurs: the electrical contacts in the inertia fuel shutoff switch open.
the fuel pump automatically shuts off, even if the engine does not stop running.
the engine will stop a few seconds after the fuel pump stops.
it is impossible to restart engine until the inertia fuel shutoff switch, located on the LH side lower back panel in the luggage compartment, is manually reset.
NOTE: In the reset position, the button can be pressed an additional 1.59 mm (0.0625 inch) against a spring. This is a normal condition.

WARNING: DO NOT RESET THE INERTIA FUEL SHUTOFF SWITCH UNTIL THE COMPLETE FUEL SYSTEM HAS BEEN INSPECTED FOR LEAKS OR DAMAGE TO VEHICLE OR PERSONAL INJURY MAY OCCUR.

To reset the inertia fuel shutoff switch, press button on top of inertia fuel shutoff switch.


http://www.2carpros.com/forum/automotive_pictures/248015_1_138.jpg



Removal and Installation

Open luggage compartment door.
Disconnect electrical connector.
Remove two screws retaining Inertia Fuel Shutoff switch (IFS ) switch.
Remove inertia fuel shutoff switch.
To install, reverse removal procedure. Tighten IFS mounting screws to0.5-1.0 Nm (4.5-8.5 lb.in.).

ImpalaSS
Jan 2, 2009.