Ford inertia switch
Junior User
Joined: Nov 2007
Posts: 67
Likes: 1
From: Azle, Texas
My wife's nephew has a 80's F-150 and after he changed the radiator and added a temp. gauge the truck wouldn't start. He figured out that the fuel pump wasn't working off the key anymore but would if he wired it direct. Well a few weeks later we were on a camping trip with her family and he asked if I had any ideas. So I got out my volt meter and started looking it over for him. After checking the circuits and looking things over I checked his inertia switch and sure enough it was tripped. About two inches from the switch he had used a hammer and punch to "Drill" a hole for his new temp gauge wire. Ah, kids and some of the things they do.
Senior User
Joined: Feb 2007
Posts: 231
Likes: 0
Yea since the advent of electric fuel pumps if you were in a accident the pump would pump the contents of the fuel tank out. And no surprize to me it was deemed to dangerous for the enviroment 
not the fire hazard
that the enertia switch came forth. Also remember the vehicles with enertia switches have higher psi needs than a carbed engine. That being said I put one on my truck with the electrick fuel pump. I did not feel I liked the idea of the pump still running when I had a accident. BTW this is my two cents nothing is absolute fact just what I read somewhere in my studies as a fire fighter 
. And unfortunatly it makes sense to me also mine is under the dash neer me and already have had to use it (hard stop and bump in road).
not the fire hazard that the enertia switch came forth. Also remember the vehicles with enertia switches have higher psi needs than a carbed engine. That being said I put one on my truck with the electrick fuel pump. I did not feel I liked the idea of the pump still running when I had a accident. BTW this is my two cents nothing is absolute fact just what I read somewhere in my studies as a fire fighter . And unfortunatly it makes sense to me also mine is under the dash neer me and already have had to use it (hard stop and bump in road).
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mgazak
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Nov 18, 2002 11:51 AM
