Where is the fuel switch shut-off switch located on a 1994 F150 XL

Asked by Jul 15, 2017 at 02:15 PM about the 1994 Ford F-150 XL SB

Question type: Maintenance & Repair

I have a bought a 1994 Ford F-150 XL for my son to drive. We noticed the
smell of gas and saw it was leaking coming from the top of the gas tank. We
unbolted the bed and undone the wiring harness to change out the seal
around the fuel pump. Changed the seal out and now the fuel pump for the
front tank is not working. We have replaced the throw over switch inside on
the dash. I have purchased a new fuel pump for it and a new fuel filter but has
not replaced them yet.

1 Answer

98,575

You stated front tank, so if it has a rear fuel tank and it runs on that tank then you don't have a tripped fuel pump inertia switch, that switch will kill the power to all the pumps. I suspect that the pump has actually failed, sometimes any disturbance of older fuel pumps will cause them to just stop working, but you should make sure you are getting power to the pumps when you turn on the key of a few seconds, it could be wiring or the connector to the front pump. And don't forget to replace the fuel pump relay also, a new pump without a new relay is asking for problems if it fails and then your going nowhere.

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