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1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

What is this switch for

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Old Sep 14, 2010 | 02:41 PM
  #1  
86pullerf350's Avatar
86pullerf350
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Mountain Pass
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From: Dunbarton, NH
What is this switch for

On the pass side under the dash is a small black box with a white button on the top of it. It has 2 yellow wires plugged into the bottom of it. It says "first inertia switch" on it. I followed the wires and 1 is cut and the other ends up in the fuse box it looks like.

I changed my truck to a mechanical fuel pump on the block and when I changed the fuel tank I got a tank from an 86 f-350 diesel that doesn't have the electric pick up in the tank. My truck runs fine, I just want to make sure of what it is before I go ripping it out to get rid of extra bs that I don't need anymore.

Is this for a fuel safety shut off in case the truck rolls over or is in a accident?

Thanks for any suggestions.
 
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Old Sep 14, 2010 | 02:52 PM
  #2  
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Inertia switches are for electric pumps so they will cut off after an impact. Nothing like a gasoline fire with the electric pump feeding it....

Since you went to a mechanical, you do not need it.
 
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Old Sep 14, 2010 | 03:45 PM
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that doesnt sound like a bad idea
 
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Old Sep 14, 2010 | 04:11 PM
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86pullerf350
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Thanks 85 I will consider it gone then!

Moconnor I have taken probably about a 5 gallon bucket full of wires that don't go anywhere or do anything from PO's. And I'm still finding more.
 
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