Bypass the fuel inertia switch?? - Ford F150 Forum - Community of Ford Truck Fans

1987 - 1996 F150 Still running strong! Talk about your 8th and 9th generation Ford F150 trucks.

Bypass the fuel inertia switch??

Thread Tools Search this Thread
Old 08-31-2009, 12:05 AM   #1
Junior Member
Thread Starter
Join Date: Aug 2009
Posts: 2
Thanks: 0
Thanked 0 Times in 0 Posts
Default Bypass the fuel inertia switch??

i bought a 91 ford 4.9 4x4. and it had a fuel problem, but it has a new fuel problem. i was under the dash and hit the inertia fuel swicth and now the fuel pump relay stopped clicking. Would it do any harm to just bypass that swicth?
zachmoist33 is offline   Reply With Quote
Old 08-31-2009, 12:17 AM   #2
Springer Spaniels Rule
dirtcrew51m's Avatar
Join Date: Jun 2009
Location: Milltown, NJ
Posts: 3,446
Thanks: 0
Thanked 15 Times in 14 Posts

Shouldnt, but it is there for safety reasons, if you crash it kills the fuel pumps, if you bypass its recommended you soon get a new one if this one is bad.
dirtcrew51m is offline   Reply With Quote
Old 08-31-2009, 08:15 PM   #3
Senior Member
wde3477's Avatar
Join Date: Jul 2007
Location: Cape Girardeau MO
Posts: 2,708
Thanks: 0
Thanked 68 Times in 68 Posts

^ +1. If the switch won't reset with the pushbutton, the magnet has probably gotten weak - it's time for a new one.

One of those things you hope you never need, but will be glad it's there when the occasion calls for it.
wde3477 is offline   Reply With Quote
Old 12-11-2010, 08:51 PM   #4
Junior Member
Join Date: Dec 2010
Posts: 2
Thanks: 0
Thanked 0 Times in 0 Posts

Question: On my 93 F250 there are 2 heavy wires and 1 light gauge wire feeding the inertia switch. I have jumped the two heavy ones and the pump activates but I'm wondering if I need to do something with the smaller 3rd wire. Anyone know? Thanks
Del is offline   Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
New Truck - 2003 F-150 XL SuperCab Bi-Fuel Blenderite 1997 - 2003 Ford F150 85 04-29-2017 05:29 PM
F150 1996 Fuel Pumps will not Activate kenw Electrical 3 11-13-2016 10:34 PM
Duel fuel tank neither pump will work F150jelly 6 Cylinder Engines 8 12-25-2015 11:11 PM
Replaced front fuel pump; still not working spinningchurro 1987 - 1996 F150 6 10-23-2015 11:01 PM
Hey everyone Brandyn193 Introductions 1 09-04-2015 05:06 PM

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

All times are GMT -4. The time now is 06:29 AM.

Copyright 2006 - 2017 We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to and affiliated sites.
  • Ask a Question
    Get answers from community experts
Question Title:
Your question will be posted in: