Bypass the Inertia Switch?

[RangerMan64]

Can I bypass the inertia switch altogether? I jumpered it today because I think it is pretty much dead. Is there a way to test this switch? Is there a more permanant and reliable fix then just a simple jumper wire? I am hoping for a cap to put on top of the connector, so I won't have to worry about the wire coming loose while driving and having the pumps shut off.

Any suggestions?

 

[Mark_88]

You can jumper it...someone on here recently fixed their intermittent stalling by doing that...but you can also go to a junkyard and get one for next to nothing and have a working switch...they are designed to shut off the fuel pump in the event of a crash so it's not a good idea to jumper them permanently...a temp fix if fine...but I'm not exactly sure what wires you need to connect to bypass the circuit...

 

[Mutant Pony]

I bypass mine. I've had more fail than not. Just remember though, As Mark said, in the event of an accident the pump won't shut down. Ford is the only company to use them.

 

[PFC Laird]

i dont know how it happened on my 94 2.3 but i don't seem to even have an inertia switch.

 

[Wicked_Sludge]

ive had my truck airborne without tripping the switch. i know it works because it trips if i smack it with a hammer.

id get a junkyard switch.

 

[almostclueless]

You won't catch me bypassing an inertia switch unless hillary clinton is chasing me...

 

[Hahnsb2]

Mine is bypassed, never got around to hooking it up after the 4.0 swap.

 

[Sunk]

I had a bunch of fuel pump/wiring issues about 5 months ago and after ward the switch started tripping, so I jumped it. Do it right, don't just jam some wires in the plug. They fall out and it gets annoying, lol.

 

[canyoncritter]

those dam switches can be hit or miss. Ive had soem that I could have droped off a 3 story bulding and it would not hav gone off, have had some that switched hitting a speed bump hard.

If you do bypass it, wire it to a toggle switch.That way if you do get in a wreck, there is some chance of shutting off the fuel pump if the lines get broken etc.

 

[Mark_88]

Or just wire the fuel pump to a switch so you can slow down thieves at the same time...turn the pump off at night when you leave the truck parked somewhere that it might get jacked...

 

[RangerMan64]

those dam switches can be hit or miss. Ive had soem that I could have droped off a 3 story bulding and it would not hav gone off, have had some that switched hitting a speed bump hard.

If you do bypass it, wire it to a toggle switch.That way if you do get in a wreck, there is some chance of shutting off the fuel pump if the lines get broken etc.

Where could I purchase a toggle switch? And where would be an appropriate place to mount it? I was thinking near the fuel selector switch...

 

[Speedwagon]

If Ford is the only company to use these, why is it really a big deal if it gets bypassed? There are plenty of other vehicles out there that do just fine without an inertia switch. Ford might have put it there for a reason... but Ford engineers aren't always the best, either(we all know this to be true, because almost everyone here has worked on their Ford).

 

[RangerMan64]

If Ford is the only company to use these, why is it really a big deal if it gets bypassed? There are plenty of other vehicles out there that do just fine without an inertia switch. Ford might have put it there for a reason... but Ford engineers aren't always the best, either(we all know this to be true, because almost everyone here has worked on their Ford).

That's what I was thinking.

 

[Psychopete]

Where could I purchase a toggle switch? And where would be an appropriate place to mount it? I was thinking near the fuel selector switch...

I'd be reluctant to run the fuel pump main power through an automotive grade toggle switch. There is a reason it's relayed. You could make it work more effectively with another relay, but you might consider another inertia switch for completeness.. IMO

Pete

 

[Mutant Pony]

If Ford is the only company to use these, why is it really a big deal if it gets bypassed? There are plenty of other vehicles out there that do just fine without an inertia switch.

That is the way I feel about it. Also, If you turn the key off the pump quits, If the motor stops rotating the pump quits, and if either of the battery terminals get disconnected the pump quits. How many disconnects does a pump need?