How do you trip the fuel pump inertia switch

[Mark #2]

Manually, anyone know?

[L8 APEX]

Jump the relay.

[my2002lightning]

Isn't there a fuel pump reset switch up by the PCM (passenger side kick panel area) that will reset the whole system in the event we're hit from behind?

[03LightningRocks]

How do you trip the fuel pump inertia switch

Manually, anyone know?


Have a wreck. :D

[PUMP]

The only way to trip it manually, without subjecting the vehicle to a signigicant G force, is to remove it and shake it hard. There are probably several diferent designs, but a basic one is composed of a steel ball held in place by a magnet. When the G force is sufficient to dislodge the ball, it rolls into a switch arm lever to open the circuit. The ball then rolls back into contact with the magnet. The switch is a mechanical latch open type, and you have to push the reset to close the circuit, (arm the switch). A vibration switch on large fans to shut down under excessive vibration work in similar fashion.

[Mark #2]

Have a wreck. :D

I was wanting to disable the pumps and thought the inertia switch would be the easy way, pulled the fuse instead.

[L8 APEX]

Oh that switch, the easiest way is to pull the pump fuse a 20A in the engine bay fuse block.

[Mark #2]

Oh that switch, the easiest way is to pull the pump fuse a 20A in the engine bay fuse block. Yeah, I found the fuse.