Fuel Inertia Switch

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Aug 26, 2003 | 07:30 AM

emboyd

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Joined: Dec 2001

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From: Jacksonville, FL

Fuel Inertia Switch

OK, I'm checking the Fuel Inertia Switch yesterday to see why my truck won't start. It's got spark, and I hear a fuel pump run when I turn on the key, but wanted to make sure the inertia switch is reset. My question is this: When the inertia switch is in the "ON" position, is the white button pushed all the way down, or is it still "springy"? I can press it, but it doesn't seem to want to stay down. I haven't done a continuity test yet, but plan to this evening.

Thanks for your help.

Aug 26, 2003 | 08:43 AM

jbalestri

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From: Billings MT

Fuel Inertia Switch

If you hear the fuel pump run, the inertia switch is okay in terms of sending power through the system. A continuity test will show a closed circuit. It seems to me that it should click and stay down. It seems to me that on my 1990 that you push the button down to kill the power and then pry it up to run.

Aug 26, 2003 | 09:12 AM

emboyd

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From: Jacksonville, FL

Fuel Inertia Switch

Quote:

Originally posted by jbalestri
If you hear the fuel pump run, the inertia switch is okay in terms of sending power through the system. A continuity test will show a closed circuit. It seems to me that it should click and stay down. It seems to me that on my 1990 that you push the button down to kill the power and then pry it up to run.

Yes, that's what I was thinking, too. I had an '89 F-150 I-6 that needed to be pryed up to trip it and would stay "clicked down" when pressed. This one look different than the '89 version, whereas it isn't a round button, but rather a straight flat button.

Thanks,

Aug 27, 2003 | 08:53 AM

emboyd

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From: Jacksonville, FL

Fuel Inertia Switch

OK, I checked continuity of the switch and it is indeed working properly. I even gave it a shock test and it sprung and was reset. What's my next step to determine why I may not be getting fuel to this thing?

Thanks,