Fuel safety cutoff switch

[Mike1950]

My switch is failing intermittently. A nuisance right now, but eventually it will give up the ghost.

If it goes out before I can order a replacement, can I simply jump the wires in the connector (bypassing the switch) to temporarily reactivate the fuel pump?

Thanks.

 

[swshawaii]

Absolutely, it's been done MANY times before. Also make sure to inspect the connector carefully, just as common to fail
as the inertia switch itself. BTW, don't be tempted to leave it "jumped", it is a very good and functional safety feature. GL

 

[Mike1950]

Great, thanks! I did blow out the connector with cleaner, we shall see. I did notice they sell replacement connectors.. now I know why.

No, I won't leave it "fixed". Allergic to fire...

 

[swshawaii]

Like sensors and anything electrical, probably wise to stick with OE parts here.
Usually costs a little more, but at least Ford/Motorcraft parts ALWAYS fit. LOL

Inertia Switch - Ford (5L2Z-9341-A) | Auto Nation Ford White Bear Lake

 

[Mike1950]

Like sensors and anything electrical, probably wise to stick with OE parts here.
Usually costs a little more, but at least Ford/Motorcraft parts ALWAYS fit. LOL

Inertia Switch - Ford (5L2Z-9341-A) | Auto Nation Ford White Bear Lake

Thanks! Cheaper, too!

 

[CDW6212R]

I've never heard of an inertia switch failing, it's a well designed part. I'd look everywhere else in the circuit, before that. The connector is much more likely, especially being above where the passenger's feet are. That's not a great place to have it. The connector can easily be damaged, the switch, I think it'd take a hammer to break it.

If the switch got me worried, I'd swap a used one in without a thought, just as reliable. I have at least one someplace, from parting out three old Lincolns wit a friend. I'll never need one ... until I want to add one to my old Ranchero.